WO2025043473A1 - Optical temperature measurement apparatus and temperature measurement method - Google Patents
Optical temperature measurement apparatus and temperature measurement method Download PDFInfo
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- WO2025043473A1 WO2025043473A1 PCT/CN2023/115430 CN2023115430W WO2025043473A1 WO 2025043473 A1 WO2025043473 A1 WO 2025043473A1 CN 2023115430 W CN2023115430 W CN 2023115430W WO 2025043473 A1 WO2025043473 A1 WO 2025043473A1
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- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Definitions
- the present invention relates to the technical field of temperature detection using optical methods, and in particular to an optical temperature measurement device and method.
- Chinese patent CN115029137B discloses a high-sensitivity multi-parameter temperature probe phosphor and its preparation method and application.
- the above patent specifically proposes a high-sensitivity multi-parameter temperature probe phosphor, whose general chemical formula is: Ca 2 LaTaO 6 : xmol%Mn 2+ , ymol%Tb 3+ , wherein x is the molar percentage of doped manganese ions Mn 2+ , taking 0.005 ⁇ x ⁇ 0.1, wherein y is the molar percentage of doped terbium Tb 3+ , taking 0.01 ⁇ y ⁇ 0.3.
- the above product can be used for temperature measurement, including the following method: irradiating the phosphor with ultraviolet light at a wavelength of 254 nanometers, the powder is excited to emit two fluorescence emission peaks at 544 nanometers and 685 nanometers respectively;
- the intensity ratio of the fluorescence emission peaks at 544 nm and 685 nm is linearly related to temperature.
- the half-peak width of the Mn emission peak is linearly related to temperature.
- the peak energy of the Mn emission peak is linearly related to temperature.
- the ratio of the two fluorescence emission peak intensities, the half-width of the Mn emission peak, and the peak energy of the Mn emission peak is the ratio of the two fluorescence emission peak intensities, the half-width of the Mn emission peak, and the peak energy of the Mn emission peak
- an object of the present invention is to provide an optical temperature measurement device and a temperature measurement method.
- An optical temperature measuring device comprises: a housing 1, an ultraviolet light emitting part 2, a heat transfer part 3, a fluorescent part 4, a first grating 5, a second grating 6, a first condensing lens 7, a second condensing lens 8, a first optical probe 9, a second optical probe 10, a computing unit 11, and a light isolation sheet 12;
- the bottom of the shell is a concave lens, a fluorescent part is provided at the focus of the concave lens, and a fluorescent powder is provided on the surface of the fluorescent part facing the ultraviolet light emitting part.
- the chemical formula of the fluorescent powder is: Ca 2 LaTaO 6 :xmol%Mn 2+ ,ymol%Tb 3+ , wherein x is the molar percentage of doped manganese ions Mn 2+ , taking 0.005 ⁇ x ⁇ 0.1, and y is the molar percentage of doped terbium Tb 3+ , taking 0.01 ⁇ y ⁇ 0.3.
- the fluorescent part is fixed to the shell through the heat transfer part, and a part of the heat transfer part is located inside the shell and a part of the heat transfer part is located outside the shell. Outside the body, the part inside the shell is connected to the part outside the shell;
- the ultraviolet light emitting part emits 254 nanometer ultraviolet light to illuminate the fluorescent part, so that the fluorescent part emits fluorescence.
- the housing is provided with a first grating and a second grating. After the fluorescence is reflected by the bottom of the housing, parallel light is formed and directed toward the first grating and the second grating.
- the first grating and the second grating are located on a cross section of the housing.
- the first grating and the second grating are in the form of sheets.
- the planes where the first grating and the second grating are located are perpendicular to the parallel light.
- the first grating and the second grating transmit light of 544 nanometers and 685 nanometers, respectively.
- the housing is further provided with a first condenser lens and a second condenser lens, the first condenser lens and the second condenser lens are respectively used to transmit the light of 544 nanometers and 685 nanometers respectively passing through the grating, so that the light of 544 nanometers and the light of 685 nanometers are focused on the first optical probe and the second optical probe respectively;
- the first optical probe and the second optical probe are respectively located at the focal points of the first condensing lens and the second condensing lens;
- a light-isolating sheet is provided at the boundary between the first grating and the second grating, the light-isolating sheet, the first grating and the housing form a first cavity, and the first condensing lens and the first optical probe are located in the first cavity;
- the light isolation sheet, the second grating and the housing form a second cavity, and the second condenser lens and the second optical probe are located in the second cavity;
- the first grating and the second grating have the same area and are half of the cross-section of the shell.
- the computing unit is used to perform light intensity and temperature conversion operations and output a temperature result.
- the fluorescent powder When the fluorescent powder is irradiated with short-wave ultraviolet light having a wavelength of 254 nanometers, the powder is excited to emit two fluorescence emission peaks at 544 nanometers and 685 nanometers respectively. In the temperature range of 30°C to 170°C, these two spectrally distinguishable fluorescence emission peaks have significantly different change patterns with temperature changes, and the ratio of their intensities can be measured by measuring the ratio of the intensities of these two fluorescence emission peaks to calibrate the temperature of the environment in which the material is located.
- the present invention uses the above-mentioned fluorescent powder to design a temperature measurement device and method.
- the device of the present invention has a simple structure and low cost.
- the precise temperature measurement device is separated from the object to be measured with a large range of temperature changes, so that the influence of the external environment on the temperature measurement device is reduced.
- the present invention uses a grating and a cavity to filter the emitted light into two groups, and reduces interference through the cavity.
- the amount of fluorescent powder used in the present invention is small.
- Figure 2 is a top view of the overall structure of the device of the present invention, including a schematic diagram of the internal structure of the shell and a computing unit 11; the markings in the figure are as follows: shell 1, ultraviolet light emitting unit 2, fluorescent unit 4, first grating 5, second grating 6, first focusing lens 7, second focusing lens 8, first optical probe 9, second optical probe 10, computing unit 11, and light isolation sheet 12.
- the device of this embodiment includes: a housing 1, an ultraviolet light emitting unit 2, a heat transfer unit 3, a fluorescent unit 4, a first grating 5, a second grating 6, a first condensing lens 7, a second condensing lens 8, a first optical probe 9, a second optical probe 10, a computing unit 11, and a light isolation sheet 12;
- the shell includes a bottom and a side wall of the shell, the bottom is a concave lens, and the side wall is cylindrical.
- the interior of the shell is a mirror surface to prevent external incident light from interfering with the light signal in the shell and reducing the absorption of fluorescence.
- a fluorescent part is provided at the focus of the bottom of the shell (as shown on the right side of the shell in FIG1 ), and the surface of the fluorescent part facing the ultraviolet light emitting part is evenly fixed with fluorescent powder, and the volume of the fluorescent part is much smaller than the bottom of the shell, so that the fluorescent part is approximately point-shaped relative to the bottom of the shell.
- the general chemical formula of the phosphor is: Ca 2 LaTaO 6 : xmol% Mn 2+ , ymol% Tb 3+ , wherein x is the molar percentage of doped manganese ions Mn 2+ , and is 0.005 ⁇ x ⁇ 0.1, and y is the molar percentage of doped terbium Tb 3+ , and is 0.01 ⁇ y ⁇ 0.3.
- the fluorescent part is fixed on the shell through the heat transfer part.
- a part of the heat transfer part is located in the shell and is used to support the fluorescent part to remain at the focal point of the bottom of the shell.
- the heat transfer part is made of metal material with good thermal conductivity.
- the other part of the heat transfer part is located outside the shell and is used to better contact the object to be measured.
- the part of the heat transfer part inside the shell and the part outside the shell are connected to each other, and the part outside the shell contacts the object to be measured.
- the temperature of the object to be measured is transmitted to the fluorescent part through the heat transfer part.
- the ultraviolet light emitting part emits 254 nanometer ultraviolet light to irradiate the fluorescent part, so that the fluorescent part emits fluorescence.
- the fluorescent part is at the focal point at the bottom of the shell.
- the first grating and the second grating are located on the cross section of the shell, the first grating and the second grating are in sheet shape, the plane where the first grating and the second grating are located is perpendicular to the parallel light, the first grating and the second grating have the same area and are half of the cross section on the shell wall, the first grating and the second grating respectively allow 544 nanometers and 685 nanometers of light to pass through, and pass through the first condensing lens and the second condensing lens respectively, so that the 544 nanometers and 685 nanometers of light are focused on the first light probe and the second light probe respectively,
- a light-isolating sheet is provided at the boundary between the first grating and the second grating, and both sides of the light-isolating sheet are mirror surfaces.
- the light-isolating sheet, the first grating and the housing form a first cavity, so that the first condensing lens and the first optical probe are located in the first cavity to prevent other light from interfering with the 544-nanometer light collected by the probe;
- the light isolation sheet, the second grating and the housing form a second cavity, so that the second condensing lens and the second optical probe are located in the second cavity to prevent other light from interfering with the 685-nanometer light collected by the probe;
- the first cavity and the second cavity have the same volume and shape
- the light intensity signals of the light of 544 nanometers and 685 nanometers respectively from the first optical probe and the second photoelectric probe are transmitted to the computing unit 11 for performing light intensity and temperature conversion operation, and outputting the temperature result.
- the first grating and the second grating are used to transmit light of 544 nanometers and light of 685 nanometers, respectively.
- the first condenser lens and the second condenser lens are used to make the light of 544 nanometers and the light of 685 nanometers pass through the first condenser lens and the second condenser lens respectively, and then focus on the first light probe and the second light probe respectively.
- the first cavity is used to prevent light of other wavelengths from interfering with the 544-nanometer light collected by the probe;
- first optical probe and the second photoelectric probe to respectively collect light intensity signals of 544 nanometers and 685 nanometers, and transmit them to the computing unit through the electrical connection;
- the computing unit is used to output the light intensities of the 544-nanometer and 685-nanometer lights.
- the above calibration process is repeated several times, and the relationship between temperature and light intensity is obtained using the light intensity and the temperature.
- the temperature is measured using the relationship between temperature and light intensity:
- the ultraviolet light emitting part is turned on to emit 254 nanometer ultraviolet light to irradiate the fluorescent part, so that the fluorescent part emits fluorescence;
- the first grating and the second grating are used to transmit light of 544 nanometers and light of 685 nanometers, respectively.
- the first condenser lens and the second condenser lens are used to make the light of 544 nanometers and the light of 685 nanometers pass through the first condenser lens and the second condenser lens respectively, and then focus on the first light probe and the second light probe respectively.
- the first cavity is used to prevent light of other wavelengths from interfering with the 544-nanometer light collected by the probe;
- the second cavity is used to prevent light of other wavelengths from interfering with the 685-nanometer light collected by the probe;
- first optical probe and the second photoelectric probe to respectively collect light intensity signals of 544 nanometers and 685 nanometers, and transmit them to the computing unit through the electrical connection;
- the computing unit is used to perform light intensity and temperature conversion operations and output a temperature result.
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Abstract
Description
本发明涉及利用光学方法进行温度检测技术领域，尤其是涉及一种光学测温装置和方法。The present invention relates to the technical field of temperature detection using optical methods, and in particular to an optical temperature measurement device and method.
中国专利CN115029137B公开了一种高灵敏多参数温度探针荧光粉及其制备方法和应用，上述专利具体提出了一种高灵敏多参数温度探针荧光粉，其化学通式为：Ca2LaTaO6:xmol％Mn2+，ymol％Tb3+，其中x为掺杂的锰离子Mn2+的摩尔百分数，取0.005≤x≤0.1，其中y为掺杂的铽Tb3+的摩尔百分数，取0.01≤y≤0.3。Chinese patent CN115029137B discloses a high-sensitivity multi-parameter temperature probe phosphor and its preparation method and application. The above patent specifically proposes a high-sensitivity multi-parameter temperature probe phosphor, whose general chemical formula is: Ca 2 LaTaO 6 : xmol%Mn 2+ , ymol%Tb 3+ , wherein x is the molar percentage of doped manganese ions Mn 2+ , taking 0.005≤x≤0.1, wherein y is the molar percentage of doped terbium Tb 3+ , taking 0.01≤y≤0.3.
并指出上述产品可以用于测温，包括以下方法：用波长位于254纳米的紫外光照射该荧光粉，粉体被激发出两个分别位于544纳米和685纳米的荧光发射峰；It also points out that the above product can be used for temperature measurement, including the following method: irradiating the phosphor with ultraviolet light at a wavelength of 254 nanometers, the powder is excited to emit two fluorescence emission peaks at 544 nanometers and 685 nanometers respectively;
在温度303K到443K的温度范围内：In the temperature range of 303K to 443K:
位于544纳米和685纳米的荧光发射峰的强度比值与温度成线性关系，The intensity ratio of the fluorescence emission peaks at 544 nm and 685 nm is linearly related to temperature.
Mn发射峰的半峰宽与温度成线性关系，The half-peak width of the Mn emission peak is linearly related to temperature.
Mn发射峰的峰值能量与温度成线性关系，The peak energy of the Mn emission peak is linearly related to temperature.
基于上述三种线性关系，通过测量以下三个参数中的任一项或多项：Based on the above three linear relationships, by measuring any one or more of the following three parameters:
两个荧光发射峰强度的比值、Mn发射峰的半峰宽、Mn发射峰的峰值能量，The ratio of the two fluorescence emission peak intensities, the half-width of the Mn emission peak, and the peak energy of the Mn emission peak,
将测量得到的参数值代入相应的线性关系，得到材料所处环境的温度。Substitute the measured parameter values into the corresponding linear relationship to obtain the temperature of the environment in which the material is located.
然而上述专利提供的技术方案，没有提供测温的具体设备和测试方法。However, the technical solution provided by the above patent does not provide specific equipment and testing methods for temperature measurement.
发明内容Summary of the invention
针对现有技术的不足，本发明目的在于提供一种光学测温装置和测温方法。In view of the deficiencies in the prior art, an object of the present invention is to provide an optical temperature measurement device and a temperature measurement method.
一种光学测温装置，包括：壳体1、紫外发光部2、传热部3、荧光部4、第一光栅5、第二光栅6、第一聚光透镜7、第二聚光透镜8、第一光探头9、第二光探头10、运算单元11、隔光片12；An optical temperature measuring device comprises: a housing 1, an ultraviolet light emitting part 2, a heat transfer part 3, a fluorescent part 4, a first grating 5, a second grating 6, a first condensing lens 7, a second condensing lens 8, a first optical probe 9, a second optical probe 10, a computing unit 11, and a light isolation sheet 12;
所述壳体的底部为凹透镜，所述凹透镜的焦点处设有荧光部，所述荧光部正对紫外发光部一侧其表面设有荧光粉，所述荧光粉化学通式为：Ca2LaTaO6:xmol％Mn2+，ymol％Tb3+，其中x为掺杂的锰离子Mn2+的摩尔百分数，取0.005≤x≤0.1，其中y为掺杂的铽Tb3+的摩尔百分数，取0.01≤y≤0.3。The bottom of the shell is a concave lens, a fluorescent part is provided at the focus of the concave lens, and a fluorescent powder is provided on the surface of the fluorescent part facing the ultraviolet light emitting part. The chemical formula of the fluorescent powder is: Ca 2 LaTaO 6 :xmol%Mn 2+ ,ymol%Tb 3+ , wherein x is the molar percentage of doped manganese ions Mn 2+ , taking 0.005≤x≤0.1, and y is the molar percentage of doped terbium Tb 3+ , taking 0.01≤y≤0.3.
所述荧光部通过传热部固定于所述壳体上，所述传热部一部分位于壳体内，一部分位于壳 体外，壳体内的部分与壳体外的部分相互连接；The fluorescent part is fixed to the shell through the heat transfer part, and a part of the heat transfer part is located inside the shell and a part of the heat transfer part is located outside the shell. Outside the body, the part inside the shell is connected to the part outside the shell;
所述紫外发光部发射254纳米的紫外光照射所述荧光部，使所述荧光部发出荧光，The ultraviolet light emitting part emits 254 nanometer ultraviolet light to illuminate the fluorescent part, so that the fluorescent part emits fluorescence.
所述壳体内设有第一光栅和第二光栅，所述荧光被壳体底部反射后，形成平行光，射向所述第一光栅和第二光栅，所述第一光栅和第二光栅位于所述壳体的截面上，第一光栅和第二光栅为片状，所述第一光栅和第二光栅所在的平面与所述平行光垂直，所述第一光栅和第二光栅分别使544纳米和685纳米的光透过，The housing is provided with a first grating and a second grating. After the fluorescence is reflected by the bottom of the housing, parallel light is formed and directed toward the first grating and the second grating. The first grating and the second grating are located on a cross section of the housing. The first grating and the second grating are in the form of sheets. The planes where the first grating and the second grating are located are perpendicular to the parallel light. The first grating and the second grating transmit light of 544 nanometers and 685 nanometers, respectively.
所述壳体内还设有第一聚光透镜和第二聚光透镜，所述第一聚光透镜和第二聚光透镜分别用于使通过光栅的分别使544纳米和685纳米的光透过，使544纳米和685纳米的光分别聚焦于所述第一光探头和第二光探头上；The housing is further provided with a first condenser lens and a second condenser lens, the first condenser lens and the second condenser lens are respectively used to transmit the light of 544 nanometers and 685 nanometers respectively passing through the grating, so that the light of 544 nanometers and the light of 685 nanometers are focused on the first optical probe and the second optical probe respectively;
所述第一光探头和第二光探头分别位于所述第一聚光透镜和第二聚光透镜的焦点上；The first optical probe and the second optical probe are respectively located at the focal points of the first condensing lens and the second condensing lens;
所述第一光栅和第二光栅分界处设有隔光片，所述隔光片与第一光栅及所述壳体形成第一腔体，所述第一聚光透镜与所述第一光探头位于所述第一腔体中；A light-isolating sheet is provided at the boundary between the first grating and the second grating, the light-isolating sheet, the first grating and the housing form a first cavity, and the first condensing lens and the first optical probe are located in the first cavity;
所述隔光片与第二光栅及所述壳体形成第二腔体，所述第二聚光透镜与所述第二光探头位于所述第二腔体中；The light isolation sheet, the second grating and the housing form a second cavity, and the second condenser lens and the second optical probe are located in the second cavity;
所述第一光探头和第二光电探头分别采集544纳米和685纳米的光的光强信号，The first optical probe and the second photoelectric probe collect light intensity signals of 544 nanometers and 685 nanometers respectively.
所述第一光探头和第二光电探头通过电连接，连接所述运算单元。The first optical probe and the second photoelectric probe are electrically connected to the computing unit.
作为优选，所述壳体内部为镜面。Preferably, the interior of the shell is a mirror surface.
作为优选，所述隔光片的两面均为镜面。Preferably, both sides of the light isolation sheet are mirror surfaces.
作为优选，所述第一光栅和第二光栅面积相同且为所述壳体截面的一半。Preferably, the first grating and the second grating have the same area and are half of the cross-section of the shell.
作为优选，所述第一腔体与所述第二腔体的体积和形状相同。Preferably, the first cavity and the second cavity are the same in volume and shape.
本发明还提供一种光学测温装置的测量方法，包括以下步骤：The present invention also provides a measurement method of an optical temperature measuring device, comprising the following steps:
使用所述传热部接触待测物体；Using the heat transfer portion to contact the object to be measured;
待测物体温度传导到所述荧光部后，打开所述紫外发光部，使其发射254纳米的紫外光照射所述荧光部，使所述荧光部发出荧光；After the temperature of the object to be measured is transmitted to the fluorescent part, the ultraviolet light emitting part is turned on to emit 254 nanometer ultraviolet light to irradiate the fluorescent part, so that the fluorescent part emits fluorescence;
所述荧光被壳体底部反射后，形成平行光，射向第一光栅和第二光栅；After the fluorescence is reflected by the bottom of the housing, parallel light is formed and directed toward the first grating and the second grating;
使用所述第一光栅和第二光栅分别使544纳米和685纳米的光透过，The first grating and the second grating are used to transmit light of 544 nanometers and light of 685 nanometers, respectively.
使用所述第一聚光透镜和第二聚光透镜，使544纳米和685纳米的光分别通过所述第一聚光透镜和第二聚光透镜后，分别聚焦于所述第一光探头和第二光探头上，The first condenser lens and the second condenser lens are used to make the light of 544 nanometers and the light of 685 nanometers pass through the first condenser lens and the second condenser lens respectively, and then focus on the first light probe and the second light probe respectively.
使用所述第一腔体，防止其它波长的光线对探头采集544纳米的光产生干扰； The first cavity is used to prevent light of other wavelengths from interfering with the 544-nanometer light collected by the probe;
使用所述第二腔体，防止其它波长的光线对探头采集685纳米的光产生干扰；The second cavity is used to prevent light of other wavelengths from interfering with the 685-nanometer light collected by the probe;
使用所述第一光探头和第二光电探头分别采集544纳米和685纳米的光的光强信号并通过所述电连接，传送给所述运算单元；Using the first optical probe and the second photoelectric probe to respectively collect light intensity signals of 544 nanometers and 685 nanometers, and transmit them to the computing unit through the electrical connection;
使用所述运算单元进行光强与温度转化运算，输出温度结果。The computing unit is used to perform light intensity and temperature conversion operations and output a temperature result.
本发明荧光粉应用于温度探测的有益效果：The beneficial effects of the fluorescent powder of the present invention in temperature detection are as follows:
用波长位于254纳米的短波紫外光照射该荧光粉，粉体被激发出两个分别位于544纳米和685纳米的荧光发射峰，在30℃到170℃的温度范围内，这两个光谱可分辨的荧光发射峰随温度变化有着明显不同的变化规律，且其强度的比值，通过测量这两个荧光发射峰强度的比值就可以标定出材料所处环境的温度。本发明利用上述荧光粉，设计了测温装置和方法，本发明的装置，结构简单，成本低，通过传热部的结构，将精密的测温装置与大范围温度变化的待测物体相分离，使外界环境对测温装置的影响降低。本发明利用光栅和腔体，将所述发出的光过滤为两组，通过腔体减少干扰，另外，本发明利用的荧光粉用量小。When the fluorescent powder is irradiated with short-wave ultraviolet light having a wavelength of 254 nanometers, the powder is excited to emit two fluorescence emission peaks at 544 nanometers and 685 nanometers respectively. In the temperature range of 30°C to 170°C, these two spectrally distinguishable fluorescence emission peaks have significantly different change patterns with temperature changes, and the ratio of their intensities can be measured by measuring the ratio of the intensities of these two fluorescence emission peaks to calibrate the temperature of the environment in which the material is located. The present invention uses the above-mentioned fluorescent powder to design a temperature measurement device and method. The device of the present invention has a simple structure and low cost. Through the structure of the heat transfer part, the precise temperature measurement device is separated from the object to be measured with a large range of temperature changes, so that the influence of the external environment on the temperature measurement device is reduced. The present invention uses a grating and a cavity to filter the emitted light into two groups, and reduces interference through the cavity. In addition, the amount of fluorescent powder used in the present invention is small.
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单介绍，后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific implementation or the prior art description. Some specific embodiments of the present invention will be described in detail in an exemplary but not limiting manner with reference to the drawings. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
图1是本发明中装置壳体内部示意图的侧视图，图中标记说明如下：壳体1、紫外发光部2、传热部3、荧光部4、第一光栅5、第一聚光透镜7、第一光探头9、第二光探头10、运算单元11、隔光片12；FIG1 is a side view of the schematic diagram of the interior of the housing of the device of the present invention, and the markings in the figure are as follows: housing 1, ultraviolet light emitting unit 2, heat transfer unit 3, fluorescent unit 4, first grating 5, first focusing lens 7, first optical probe 9, second optical probe 10, computing unit 11, light isolation sheet 12;
图2为本发明装置的整体结构俯视图，包括壳体内部结构示意图和运算单元11；图中标记说明如下：壳体1、紫外发光部2、荧光部4、第一光栅5、第二光栅6、第一聚光透镜7、第二聚光透镜8、第一光探头9、第二光探头10、运算单元11、隔光片12。Figure 2 is a top view of the overall structure of the device of the present invention, including a schematic diagram of the internal structure of the shell and a computing unit 11; the markings in the figure are as follows: shell 1, ultraviolet light emitting unit 2, fluorescent unit 4, first grating 5, second grating 6, first focusing lens 7, second focusing lens 8, first optical probe 9, second optical probe 10, computing unit 11, and light isolation sheet 12.
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申 请进行进一步详细说明。应当理解，此处描述的具体实施例仅用以解释本申请，并不用于限定本申请。In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is described below in conjunction with the accompanying drawings and embodiments. Please provide further detailed description. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
本实施例的装置包括：壳体1、紫外发光部2、传热部3、荧光部4、第一光栅5、第二光栅6、第一聚光透镜7、第二聚光透镜8、第一光探头9、第二光探头10、运算单元11、隔光片12；The device of this embodiment includes: a housing 1, an ultraviolet light emitting unit 2, a heat transfer unit 3, a fluorescent unit 4, a first grating 5, a second grating 6, a first condensing lens 7, a second condensing lens 8, a first optical probe 9, a second optical probe 10, a computing unit 11, and a light isolation sheet 12;
所述壳体包括壳体的底部和侧壁，底部为凹透镜，侧壁为筒状。所述壳体内部为镜面，以防止外部入射光对壳体内光信号的干扰并减少对荧光的吸收。所述壳体的底部(如图1中壳体的右侧所示)的焦点处设有荧光部，所述荧光部正对紫外发光部一侧其表面均匀地固定有荧光粉，荧光部的体积远小于壳体底部，使荧光部相对于所述壳体底部近似为点状。The shell includes a bottom and a side wall of the shell, the bottom is a concave lens, and the side wall is cylindrical. The interior of the shell is a mirror surface to prevent external incident light from interfering with the light signal in the shell and reducing the absorption of fluorescence. A fluorescent part is provided at the focus of the bottom of the shell (as shown on the right side of the shell in FIG1 ), and the surface of the fluorescent part facing the ultraviolet light emitting part is evenly fixed with fluorescent powder, and the volume of the fluorescent part is much smaller than the bottom of the shell, so that the fluorescent part is approximately point-shaped relative to the bottom of the shell.
所述荧光粉化学通式为：Ca2LaTaO6:xmol％Mn2+，ymol％Tb3+，其中x为掺杂的锰离子Mn2+的摩尔百分数，取0.005≤x≤0.1，其中y为掺杂的铽Tb3+的摩尔百分数，取0.01≤y≤0.3。The general chemical formula of the phosphor is: Ca 2 LaTaO 6 : xmol% Mn 2+ , ymol% Tb 3+ , wherein x is the molar percentage of doped manganese ions Mn 2+ , and is 0.005≤x≤0.1, and y is the molar percentage of doped terbium Tb 3+ , and is 0.01≤y≤0.3.
所述荧光部通过传热部固定于所述壳体上，所述传热部一部分位于壳体内，用于支撑所述荧光部保持在所述壳体底部的焦点处，传热部选用导热性好的金属材料，所述传热部的另一部分位于壳体外，用于更好地接触待测温物体，传热部的壳体内的部分与壳体外的部分相互连接，壳体外的部分接触待测物体，待测物体的温度通过所述传热部，传导到荧光部，紫外发光部发射254纳米的紫外光照射所述荧光部，使所述荧光部发出荧光，所述荧光部因为在壳体底部的焦点上，所述荧光被壳体底部反射后，形成平行光，射向第一光栅和第二光栅，所述第一光栅和第二光栅位于所述壳体的截面上，第一光栅和第二光栅为片状，所述第一光栅和第二光栅所在的平面与所述平行光垂直，所述第一光栅和第二光栅面积相同且为所述壳体壁上截面的一半，所述第一光栅和第二光栅分别使544纳米和685纳米的光透过，并分别经过第一聚光透镜和第二聚光透镜，使544纳米和685纳米的光分别聚焦于所述第一光探头和第二光探头上，The fluorescent part is fixed on the shell through the heat transfer part. A part of the heat transfer part is located in the shell and is used to support the fluorescent part to remain at the focal point of the bottom of the shell. The heat transfer part is made of metal material with good thermal conductivity. The other part of the heat transfer part is located outside the shell and is used to better contact the object to be measured. The part of the heat transfer part inside the shell and the part outside the shell are connected to each other, and the part outside the shell contacts the object to be measured. The temperature of the object to be measured is transmitted to the fluorescent part through the heat transfer part. The ultraviolet light emitting part emits 254 nanometer ultraviolet light to irradiate the fluorescent part, so that the fluorescent part emits fluorescence. The fluorescent part is at the focal point at the bottom of the shell. point, after the fluorescence is reflected by the bottom of the shell, parallel light is formed and emitted to the first grating and the second grating, the first grating and the second grating are located on the cross section of the shell, the first grating and the second grating are in sheet shape, the plane where the first grating and the second grating are located is perpendicular to the parallel light, the first grating and the second grating have the same area and are half of the cross section on the shell wall, the first grating and the second grating respectively allow 544 nanometers and 685 nanometers of light to pass through, and pass through the first condensing lens and the second condensing lens respectively, so that the 544 nanometers and 685 nanometers of light are focused on the first light probe and the second light probe respectively,
所述第一光栅和第二光栅分界处设有隔光片，所述隔光片的两面均为镜面，所述隔光片与第一光栅及所述壳体形成第一腔体，使所述第一聚光透镜与所述第一光探头位于所述第一腔体中，防止其它光线对探头采集544纳米的光产生干扰；A light-isolating sheet is provided at the boundary between the first grating and the second grating, and both sides of the light-isolating sheet are mirror surfaces. The light-isolating sheet, the first grating and the housing form a first cavity, so that the first condensing lens and the first optical probe are located in the first cavity to prevent other light from interfering with the 544-nanometer light collected by the probe;
所述隔光片与第二光栅及所述壳体形成第二腔体，使所述第二聚光透镜与所述第二光探头位于所述第二腔体中，防止其它光线对探头采集685纳米的光产生干扰；The light isolation sheet, the second grating and the housing form a second cavity, so that the second condensing lens and the second optical probe are located in the second cavity to prevent other light from interfering with the 685-nanometer light collected by the probe;
所述第一腔体与所述第二腔体的体积和形状相同；The first cavity and the second cavity have the same volume and shape;
所述第一光探头和第二光电探头分别544纳米和685纳米的光的光强信号，传送给所述运算单元11进行光强与温度转化运算，输出温度结果。The light intensity signals of the light of 544 nanometers and 685 nanometers respectively from the first optical probe and the second photoelectric probe are transmitted to the computing unit 11 for performing light intensity and temperature conversion operation, and outputting the temperature result.
本发明测温方法的实施例： Embodiment of the temperature measurement method of the present invention:
先进行标定：标定过程如下：Calibrate first: The calibration process is as follows:
获取温度已知的标准物体，使用所述传热部接触所述标准物体；Obtain a standard object with a known temperature, and use the heat transfer portion to contact the standard object;
标准物体温度传导到所述荧光部后，打开所述紫外发光部，使其发射254纳米的紫外光照射所述荧光部，使所述荧光部发出荧光；After the temperature of the standard object is transmitted to the fluorescent part, the ultraviolet light emitting part is turned on to emit 254 nanometer ultraviolet light to irradiate the fluorescent part, so that the fluorescent part emits fluorescence;
所述荧光被壳体底部反射后，形成平行光，射向第一光栅和第二光栅；After the fluorescence is reflected by the bottom of the housing, parallel light is formed and directed toward the first grating and the second grating;
使用所述第一光栅和第二光栅分别使544纳米和685纳米的光透过，The first grating and the second grating are used to transmit light of 544 nanometers and light of 685 nanometers, respectively.
使用所述第一聚光透镜和第二聚光透镜，使544纳米和685纳米的光分别通过所述第一聚光透镜和第二聚光透镜后，分别聚焦于所述第一光探头和第二光探头上，The first condenser lens and the second condenser lens are used to make the light of 544 nanometers and the light of 685 nanometers pass through the first condenser lens and the second condenser lens respectively, and then focus on the first light probe and the second light probe respectively.
使用所述第一腔体，防止其它波长的光线对探头采集544纳米的光产生干扰；The first cavity is used to prevent light of other wavelengths from interfering with the 544-nanometer light collected by the probe;
使用所述第二腔体，防止其它波长的光线对探头采集685纳米的光产生干扰；The second cavity is used to prevent light of other wavelengths from interfering with the 685-nanometer light collected by the probe;
使用所述第一光探头和第二光电探头分别采集544纳米和685纳米的光的光强信号并通过所述电连接，传送给所述运算单元；Using the first optical probe and the second photoelectric probe to respectively collect light intensity signals of 544 nanometers and 685 nanometers, and transmit them to the computing unit through the electrical connection;
使用所述运算单元输出所述544纳米和685纳米的光的光强。The computing unit is used to output the light intensities of the 544-nanometer and 685-nanometer lights.
重复上述标定过程若干次，使用所述光强与所述温度得到温度与光强的关系。The above calibration process is repeated several times, and the relationship between temperature and light intensity is obtained using the light intensity and the temperature.
利用所述温度与光强的关系，进行测温：The temperature is measured using the relationship between temperature and light intensity:
获取待测物体，使用所述传热部接触待测物体；Obtaining an object to be tested, and contacting the object to be tested with the heat transfer portion;
待测物体温度传导到所述荧光部后，打开所述紫外发光部，使其发射254纳米的紫外光照射所述荧光部，使所述荧光部发出荧光；After the temperature of the object to be measured is transmitted to the fluorescent part, the ultraviolet light emitting part is turned on to emit 254 nanometer ultraviolet light to irradiate the fluorescent part, so that the fluorescent part emits fluorescence;
所述荧光被壳体底部反射后，形成平行光，射向第一光栅和第二光栅；After the fluorescence is reflected by the bottom of the housing, parallel light is formed and directed toward the first grating and the second grating;
使用所述第一光栅和第二光栅分别使544纳米和685纳米的光透过，The first grating and the second grating are used to transmit light of 544 nanometers and light of 685 nanometers, respectively.
使用所述第一聚光透镜和第二聚光透镜，使544纳米和685纳米的光分别通过所述第一聚光透镜和第二聚光透镜后，分别聚焦于所述第一光探头和第二光探头上，The first condenser lens and the second condenser lens are used to make the light of 544 nanometers and the light of 685 nanometers pass through the first condenser lens and the second condenser lens respectively, and then focus on the first light probe and the second light probe respectively.
使用所述第一腔体，防止其它波长的光线对探头采集544纳米的光产生干扰；The first cavity is used to prevent light of other wavelengths from interfering with the 544-nanometer light collected by the probe;
使用所述第二腔体，防止其它波长的光线对探头采集685纳米的光产生干扰；The second cavity is used to prevent light of other wavelengths from interfering with the 685-nanometer light collected by the probe;
使用所述第一光探头和第二光电探头分别采集544纳米和685纳米的光的光强信号并通过所述电连接，传送给所述运算单元；Using the first optical probe and the second photoelectric probe to respectively collect light intensity signals of 544 nanometers and 685 nanometers, and transmit them to the computing unit through the electrical connection;
使用所述运算单元进行光强与温度转化运算，输出温度结果。The computing unit is used to perform light intensity and temperature conversion operations and output a temperature result.
以上所述，仅为本发明部分具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本领域的人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。 The above descriptions are only some specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any person familiar with the art within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.
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