[go: up one dir, main page]

WO1999020982A2 - Systeme de mesure de matieres dans une cuve - Google Patents

Systeme de mesure de matieres dans une cuve Download PDF

Info

Publication number
WO1999020982A2
WO1999020982A2 PCT/US1998/021771 US9821771W WO9920982A2 WO 1999020982 A2 WO1999020982 A2 WO 1999020982A2 US 9821771 W US9821771 W US 9821771W WO 9920982 A2 WO9920982 A2 WO 9920982A2
Authority
WO
WIPO (PCT)
Prior art keywords
materials
vessel
backscatter
energy
physical characteristics
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1998/021771
Other languages
English (en)
Other versions
WO1999020982A3 (fr
WO1999020982A9 (fr
Inventor
Gay Early
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENVIRONMENTAL DIGITAL SERVICES Inc
Original Assignee
ENVIRONMENTAL DIGITAL SERVICES Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ENVIRONMENTAL DIGITAL SERVICES Inc filed Critical ENVIRONMENTAL DIGITAL SERVICES Inc
Publication of WO1999020982A2 publication Critical patent/WO1999020982A2/fr
Publication of WO1999020982A9 publication Critical patent/WO1999020982A9/fr
Anticipated expiration legal-status Critical
Publication of WO1999020982A3 publication Critical patent/WO1999020982A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/04—Investigating moisture content
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2928—Light, e.g. infrared or ultraviolet for discrete levels using light reflected on the material surface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G01F23/686—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means

Definitions

  • the present invention is directed to measuring systems for determining the present invention
  • the liquid leaves a mark on the dipstick, which, may be used as an indication of
  • the dipstick is usually referenced to some predetermined point or part of the
  • tank such as the bottom, or some lower part of the interior of the tank, for
  • the level of me liquid can be determined based on the mark. From the
  • dipstick is often used
  • the float may be visually aligned with calibrations on the side of the tank.
  • the float may also be coupled to an indicator or other device for providing an
  • the float In order to insure reflection of the optical energy by the float, the float is restrained
  • the liquid is directly related to differences in the magnitude between the
  • a system which is capable of differentiating
  • the present invention is directed to a system for measuring physical
  • a vessel having predetermined physical dimensions which includes a
  • transmitter capable of transmitting a beam of energy at a predetermined
  • a receiver capable of
  • control circuitry capable of determining the travel
  • Figure 1 is an illustration of a preferred embodiment of the system of the
  • FIG. 2 is diagram of a preferred embodiment of the detection module in
  • FIG. 3 is an illustration of a remote control device in accordance with
  • Figure 4 is a flow chart illustrating the operation of the preferred embodiment
  • the present invention incorporates is directed to a controlled measuring
  • system comprises a laser diode and a compatible photo diode operated in a computer environment with control circuitry, using micro technology electronics,
  • a microprocessor is programmed to control a cycle of operation in a system
  • a Storage Tank 1 contains Fill Pipe 2 for filling the
  • Fill Pipe 2 travels from the top of T-ank 1 to typically within six
  • Detection Module 3 which is preferably
  • a first liquid which is gasoline or some other petroleum fuel in the
  • Power Supply 4 which may comprise, for example,
  • Lithium batteries are preferred, although other batteries may be used, if desired.
  • RF Electronics 5 is used to activate Detection Module 3.
  • the system is preferably computer controlled and programmed in a
  • the ON switch within RF Electronics 5 is preferably an infrared and or
  • radio frequency signal switch well known to those of skill in the art, although
  • the ON switch electrically connects
  • Control Circuitry 6 which may includes a central processing unit
  • CPU central processing unit
  • detector which may comprise, for example, a laser diode and photo diode in Laser
  • the CPU and Control Circuitry 6 may comprise for example well
  • RAM Random Access Memory
  • PROM Programmable Read Only Memory
  • the laser diode is preferably driven for time intervals of one nanosecond
  • the photo diode is preferably turned on for time intervals
  • photo diode is programmed, in a conventional manner, to occur simultaneously.
  • the on-time intervals are repeated every five milliseconds for twenty-five cycles. Repeat cycling provides the significant benefit that time
  • intervals can be averaged to provide the basis for calculating volumetric values
  • the frequency of the optical energy is specifically matched for substantial
  • the laser diode is preferably
  • the laser diode is preferably oriented so
  • optical beam is transmitted toward the surface of the liquids in the tank at
  • the transmitted beam travels through a first liquid, such as gasoline,
  • the backscatter is reflected back through the gasoline and is received by the photo
  • the transmitted optical beam is used in combination with the top of the
  • time interval of combined beams A + B + C + D relates to Detection Module 3 or
  • photo diode are located in a fixed location in Tank 1, as shown in Figure 2.
  • a preferred method of determining the excursion time interval is to
  • Detection Module 3 is a function of the level or position of the gasoline surface
  • the combined beam is to measure the excursion time interval, that is, the time between
  • the levels and depths of the liquids can be
  • the levels and depths of the liquids may be referenced to the bottom
  • Time sensitive signals representing the receipt of the scatterback-energies by the photo diode are also sent to the time
  • the excursion time intervals are determined from these measurements.
  • Signals representing liquid depth and volume data may then be transmitted
  • Remote Device 8 and/or another computer (not shown) by RF Electronics 5.
  • FIG. 1 A preferred embodiment of Remote Control Device 8 is shown in Figure 3.
  • Remote Control Device 8 may comprise a hand-held unit
  • an RF transceiver containing an RF transceiver, a CPU, an input device (such as the keypad shown),
  • an output device such as the Light Emitting Diode or "LED" display shown
  • Remote Control Device 8 preferably has a display, which is menu driven by
  • Remote Control Device 8 preferably controls
  • Detection Module 3 by radio (RF) transmission.
  • RF radio
  • the TANK key is depressed (along with the appropriate tank number), followed by
  • Remote Control Device 8 then transmits a signal to RF Electronics
  • the REC key is pressed on Remote Control Device 8 and it receives data
  • the PUMP key and a pump number are
  • Control Device 8 The ENTER key is pressed to complete the data input from
  • Detection Module 3 is turned on remotely by RF
  • This signal may be generated by Remote Control Device 8 or a
  • Control Circuitry 6 of Detection Module 3 will turn on the
  • Circuitry 6 will turn on the photodiode for five nanoseconds and then turn it off.
  • This cycle is preferably repeated every five milliseconds for twenty five cycles. During each of the twenty five cycles, the interfaces of the gasoline and water, and
  • Control Circuitry 6 will then utilize the time
  • Control Circuitry 6 will transfer the data to RF Electronics 5, which will transmit
  • Remote Control Device 8 the data to Remote Control Device 8, and/or another computer.
  • Detection Module 3 is preferably a self contained unit which is hermetically
  • present invention may be utilized with materials other than gasoline and water,
  • volumetric calculations can be performed. Also, mathematical adjustments to take

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

La présente invention se rapporte à un système de mesure des caractéristiques physiques d'une pluralité de matières séparées les unes des autres par des interfaces et stockées dans un vaisseau ayant des dimensions physiques préétablies. Ledit système comprend un émetteur conçu pour émettre un faisceau d'énergie de longueur d'onde préétablie dirigé vers les diverses matières présentes dans la cuve et générant une rétrodiffusion à partir des diverses interfaces entre les matières; un récepteur conçu pour détecter cette rétrodiffusion; et un circuit de commande conçu pour évaluer le temps de propagation à travers plusieurs des diverses matières en fonction de cette rétrodiffusion, et pour déterminer les caractéristiques physiques des diverses matières en fonction du temps de propagation du faisceau et des dimensions physiques de la cuve.
PCT/US1998/021771 1997-10-17 1998-10-15 Systeme de mesure de matieres dans une cuve Ceased WO1999020982A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6193197P 1997-10-17 1997-10-17
US60/061,931 1997-10-17

Publications (3)

Publication Number Publication Date
WO1999020982A2 true WO1999020982A2 (fr) 1999-04-29
WO1999020982A9 WO1999020982A9 (fr) 1999-07-08
WO1999020982A3 WO1999020982A3 (fr) 2001-04-12

Family

ID=22039084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/021771 Ceased WO1999020982A2 (fr) 1997-10-17 1998-10-15 Systeme de mesure de matieres dans une cuve

Country Status (1)

Country Link
WO (1) WO1999020982A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036846B4 (de) * 2005-08-04 2016-11-24 Vega Grieshaber Kg Vorrichtung zum Messen eines Füllstands

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582320B1 (fr) * 1989-07-10 2001-12-05 FLADDA, Gerdt Heinrich Appareil et procédé de mesure
US5841666A (en) * 1995-12-21 1998-11-24 Endress + Hauser Gmbh + Co. Processor apparatus and method for a process measurement signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036846B4 (de) * 2005-08-04 2016-11-24 Vega Grieshaber Kg Vorrichtung zum Messen eines Füllstands

Also Published As

Publication number Publication date
WO1999020982A3 (fr) 2001-04-12
WO1999020982A9 (fr) 1999-07-08

Similar Documents

Publication Publication Date Title
US5085077A (en) Ultrasonic liquid measuring device for use in storage tanks containing liquids having a non-uniform vapor density
US7562570B2 (en) Ultrasonic oil/water tank level monitor having wireless transmission means
EP2722655B1 (fr) Jauge d'interface radar à ondes guidées avec identification du milieu
CN101479691B (zh) 基于光学参数的用于对象学习和识别的方法及装置
US20100126267A1 (en) Level sensor system for propane tanks and or the likes
US20120123706A1 (en) Systems and methods for tank level metering
US6429447B1 (en) Fluid level indicator
US20090019929A1 (en) Ultrasonic fluid measurement method
CN111189512A (zh) 基于激光测距的透明液体液位和折射率测量装置及方法
US20230077375A1 (en) Device, system and method for rodless guided microwave radiation
WO2011162790A1 (fr) Système et procédé d'instrument à lidar
US6687643B1 (en) In-situ sensor system and method for data acquisition in liquids
JPS59135323A (ja) タンク内の液量測定方法とその装置
WO1988009493A1 (fr) Appareil d'analyse de liquide
CN109564194A (zh) 使用温度相关的流体测量值变化率来感测流体特性和种类
WO1999020982A2 (fr) Systeme de mesure de matieres dans une cuve
EP3545272B1 (fr) Appareil et procédé de mesure d'épaisseurs de matériau mince dans des applications de gestion d'inventaire
KR20110131341A (ko) 액상체 잔존량 측정장치
GB2164151A (en) Acoustic liquid level measuring apparatus
EP1088203A1 (fr) Jauge de carburant sans fil
CA2644410C (fr) Systeme de detection de niveau pour citernes a propane ou recipients semblables
CN220669542U (zh) 一种检测液位层厚度的检测装置及集成灶
KR200190973Y1 (ko) 초음파를 이용한 유류저장탱크의 유량측정장치
EP4266588A1 (fr) Récipient pour gaz liquide sous pression et système de mesure de niveau de liquide
CN218673812U (zh) 酒坛液位检测装置及液位检测系统

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): BR CA MX US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 09331563

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: C2

Designated state(s): BR CA MX US

AL Designated countries for regional patents

Kind code of ref document: C2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

COP Corrected version of pamphlet

Free format text: PAGES 1-13, DESCRIPTION, REPLACED BY NEW PAGES 1-13; PAGES 14-18, CLAIMS, REPLACED BY NEW PAGES 14-18; PAGES 1/4-4/4, DRAWINGS, REPLACED BY NEW PAGES 1/4-4/4; DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA

AK Designated states

Kind code of ref document: A3

Designated state(s): BR CA MX US

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE