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WO2008029506A1 - Appareil de tomographie à cohérence optique - Google Patents

Appareil de tomographie à cohérence optique Download PDF

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Publication number
WO2008029506A1
WO2008029506A1 PCT/JP2007/000933 JP2007000933W WO2008029506A1 WO 2008029506 A1 WO2008029506 A1 WO 2008029506A1 JP 2007000933 W JP2007000933 W JP 2007000933W WO 2008029506 A1 WO2008029506 A1 WO 2008029506A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
optical
intensity
measurement
coherence tomography
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/JP2007/000933
Other languages
English (en)
Japanese (ja)
Inventor
Kohji Ohbayashi
Kimiya Shimizu
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.)
SCHOOL JURIDICAL PERSON KITASATO GAKUEN
Original Assignee
SCHOOL JURIDICAL PERSON KITASATO GAKUEN
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 SCHOOL JURIDICAL PERSON KITASATO GAKUEN filed Critical SCHOOL JURIDICAL PERSON KITASATO GAKUEN
Priority to JP2008533038A priority Critical patent/JPWO2008029506A1/ja
Publication of WO2008029506A1 publication Critical patent/WO2008029506A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0062—Arrangements for scanning
    • A61B5/0066—Optical coherence imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0073—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by tomography, i.e. reconstruction of 3D images from 2D projections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3172—Reflectometers detecting the back-scattered light in the frequency-domain, e.g. OFDR, FMCW, heterodyne detection

Definitions

  • TD—0GT is the time domain
  • the second invention improves the measurement sensitivity of 0GT, and expands the observable depth of the tomographic image (observable depth from the surface of the measurement target). The effect of doing is surely produced.
  • the second invention improves the measurement sensitivity of 0GT and expands the observable depth of the tomographic image (observable depth from the surface of the measurement target). The effect of doing is surely produced.
  • FIG. 4 is a configuration diagram of a conventional 0FDR-0GT device.
  • Ns is the number of wave numbers emitted by the variable wavelength light generator 1 during one wavelength scan.
  • ASE is incident on photodetectors 10 and 11 to generate shot noise.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Analytical Chemistry (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un appareil de tomographie à cohérence optique composé d'un dispositif de génération de lumière, d'un interféromètre et d'un photodétecteur, qui est en outre doté d'un amplificateur optique dans un trajet optique d'échantillon de l'interféromètre pour améliorer la sensibilité de mesure.
PCT/JP2007/000933 2006-09-04 2007-08-30 Appareil de tomographie à cohérence optique Ceased WO2008029506A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008533038A JPWO2008029506A1 (ja) 2006-09-04 2007-08-30 オプティカル・コヒーレンス・トモグラフィー装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-239614 2006-09-04
JP2006239614 2006-09-04

Publications (1)

Publication Number Publication Date
WO2008029506A1 true WO2008029506A1 (fr) 2008-03-13

Family

ID=39156952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000933 Ceased WO2008029506A1 (fr) 2006-09-04 2007-08-30 Appareil de tomographie à cohérence optique

Country Status (2)

Country Link
JP (1) JPWO2008029506A1 (fr)
WO (1) WO2008029506A1 (fr)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010072394A1 (fr) 2008-12-23 2010-07-01 Carl Zeiss Meditec Ag Dispositif de réflectométrie optique cohérente à source balayée
WO2011047365A1 (fr) * 2009-10-16 2011-04-21 Thorlabs, Inc. Appareil de focalisation automatique
JP2011196693A (ja) * 2010-03-17 2011-10-06 Kitasato Institute オプティカル・コヒーレンス・トモグラフィー装置及び断層像の撮影方法
JP2012528342A (ja) * 2009-05-28 2012-11-12 アビンガー・インコーポレイテッド バイオイメージングのための光コヒーレンストモグラフィ
US9380933B2 (en) 2012-06-14 2016-07-05 School Juridical Person Kitasato Institute Method and system for determining power of intraocular lens to be inserted
US9498247B2 (en) 2014-02-06 2016-11-22 Avinger, Inc. Atherectomy catheters and occlusion crossing devices
US9592075B2 (en) 2014-02-06 2017-03-14 Avinger, Inc. Atherectomy catheters devices having multi-channel bushings
US9642646B2 (en) 2009-04-28 2017-05-09 Avinger, Inc. Guidewire positioning catheter
US9854979B2 (en) 2013-03-15 2018-01-02 Avinger, Inc. Chronic total occlusion crossing devices with imaging
US9918734B2 (en) 2008-04-23 2018-03-20 Avinger, Inc. Catheter system and method for boring through blocked vascular passages
US9949754B2 (en) 2011-03-28 2018-04-24 Avinger, Inc. Occlusion-crossing devices
US10052125B2 (en) 2009-07-01 2018-08-21 Avinger, Inc. Atherectomy catheter with laterally-displaceable tip
US10130386B2 (en) 2013-07-08 2018-11-20 Avinger, Inc. Identification of elastic lamina to guide interventional therapy
US10244934B2 (en) 2012-05-14 2019-04-02 Avinger, Inc. Atherectomy catheter drive assemblies
US10335173B2 (en) 2012-09-06 2019-07-02 Avinger, Inc. Re-entry stylet for catheter
US10349974B2 (en) 2010-07-01 2019-07-16 Avinger, Inc. Atherectomy catheters with longitudinally displaceable drive shafts
US10357277B2 (en) 2014-07-08 2019-07-23 Avinger, Inc. High speed chronic total occlusion crossing devices
US20190226832A1 (en) * 2018-01-24 2019-07-25 Precitec Gmbh & Co. Kg Device and a method for distance measurement for a laser processing system, and a laser processing system
US10363062B2 (en) 2011-10-17 2019-07-30 Avinger, Inc. Atherectomy catheters and non-contact actuation mechanism for catheters
US10548478B2 (en) 2010-07-01 2020-02-04 Avinger, Inc. Balloon atherectomy catheters with imaging
US10568520B2 (en) 2015-07-13 2020-02-25 Avinger, Inc. Micro-molded anamorphic reflector lens for image guided therapeutic/diagnostic catheters
US10729326B2 (en) 2009-07-01 2020-08-04 Avinger, Inc. Catheter-based off-axis optical coherence tomography imaging system
CN112082498A (zh) * 2020-09-14 2020-12-15 安徽大学 基于相位测量法ofdr应变和温度的抑噪传感方法
US10932670B2 (en) 2013-03-15 2021-03-02 Avinger, Inc. Optical pressure sensor assembly
US10952615B2 (en) 2012-05-14 2021-03-23 Avinger, Inc. Optical coherence tomography with graded index fiber for biological imaging
US11096717B2 (en) 2013-03-15 2021-08-24 Avinger, Inc. Tissue collection device for catheter
US11135019B2 (en) 2011-11-11 2021-10-05 Avinger, Inc. Occlusion-crossing devices, atherectomy devices, and imaging
US11134849B2 (en) 2011-03-28 2021-10-05 Avinger, Inc. Occlusion-crossing devices, imaging, and atherectomy devices
US11224459B2 (en) 2016-06-30 2022-01-18 Avinger, Inc. Atherectomy catheter with shapeable distal tip
US11278248B2 (en) 2016-01-25 2022-03-22 Avinger, Inc. OCT imaging catheter with lag correction
US11284916B2 (en) 2012-09-06 2022-03-29 Avinger, Inc. Atherectomy catheters and occlusion crossing devices
US11344327B2 (en) 2016-06-03 2022-05-31 Avinger, Inc. Catheter device with detachable distal end
US11382653B2 (en) 2010-07-01 2022-07-12 Avinger, Inc. Atherectomy catheter
US11399863B2 (en) 2016-04-01 2022-08-02 Avinger, Inc. Atherectomy catheter with serrated cutter
US11406412B2 (en) 2012-05-14 2022-08-09 Avinger, Inc. Atherectomy catheters with imaging
US11793400B2 (en) 2019-10-18 2023-10-24 Avinger, Inc. Occlusion-crossing devices
US12167867B2 (en) 2018-04-19 2024-12-17 Avinger, Inc. Occlusion-crossing devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5590523B2 (ja) * 2010-03-17 2014-09-17 学校法人北里研究所 オプティカル・コヒーレンス・トモグラフィー装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000121549A (ja) * 1998-10-09 2000-04-28 Japan Science & Technology Corp ヘテロダイン検波による分光光度計
JP2003090792A (ja) * 2001-09-20 2003-03-28 Fuji Photo Film Co Ltd 光断層画像化装置
WO2005040718A1 (fr) * 2003-10-14 2005-05-06 University Of Kent Methode et appareil d'interferometrie spectrale
WO2005077257A1 (fr) * 2004-02-10 2005-08-25 Optovue, Inc. Interferometrie a faible coherence tres efficace
JP2005351839A (ja) * 2004-06-14 2005-12-22 Fujinon Corp 断層映像装置
JP2006191937A (ja) * 2004-07-09 2006-07-27 Nippon Telegr & Teleph Corp <Ntt> 歯の光干渉トモグラフィー用可変波長光発生装置及び歯の光干渉トモグラフィー装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000121549A (ja) * 1998-10-09 2000-04-28 Japan Science & Technology Corp ヘテロダイン検波による分光光度計
JP2003090792A (ja) * 2001-09-20 2003-03-28 Fuji Photo Film Co Ltd 光断層画像化装置
WO2005040718A1 (fr) * 2003-10-14 2005-05-06 University Of Kent Methode et appareil d'interferometrie spectrale
WO2005077257A1 (fr) * 2004-02-10 2005-08-25 Optovue, Inc. Interferometrie a faible coherence tres efficace
JP2005351839A (ja) * 2004-06-14 2005-12-22 Fujinon Corp 断層映像装置
JP2006191937A (ja) * 2004-07-09 2006-07-27 Nippon Telegr & Teleph Corp <Ntt> 歯の光干渉トモグラフィー用可変波長光発生装置及び歯の光干渉トモグラフィー装置

Cited By (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10869685B2 (en) 2008-04-23 2020-12-22 Avinger, Inc. Catheter system and method for boring through blocked vascular passages
US9918734B2 (en) 2008-04-23 2018-03-20 Avinger, Inc. Catheter system and method for boring through blocked vascular passages
JP2015157115A (ja) * 2008-12-23 2015-09-03 カール ツアイス メディテック アクチエンゲゼルシャフト 掃引信号源光学コヒーレンスドメイン反射率測定用の装置
WO2010072394A1 (fr) 2008-12-23 2010-07-01 Carl Zeiss Meditec Ag Dispositif de réflectométrie optique cohérente à source balayée
US9642646B2 (en) 2009-04-28 2017-05-09 Avinger, Inc. Guidewire positioning catheter
US11076773B2 (en) 2009-04-28 2021-08-03 Avinger, Inc. Guidewire positioning catheter
US11998311B2 (en) 2009-04-28 2024-06-04 Avinger, Inc. Guidewire positioning catheter
JP2012528342A (ja) * 2009-05-28 2012-11-12 アビンガー・インコーポレイテッド バイオイメージングのための光コヒーレンストモグラフィ
US11284839B2 (en) 2009-05-28 2022-03-29 Avinger, Inc. Optical coherence tomography for biological imaging
JP2015231530A (ja) * 2009-05-28 2015-12-24 アビンガー・インコーポレイテッドＡｖｉｎｇｅｒ， Ｉｎｃ． バイオイメージングのための光コヒーレンストモグラフィ
US11839493B2 (en) 2009-05-28 2023-12-12 Avinger, Inc. Optical coherence tomography for biological imaging
US10342491B2 (en) 2009-05-28 2019-07-09 Avinger, Inc. Optical coherence tomography for biological imaging
US9788790B2 (en) 2009-05-28 2017-10-17 Avinger, Inc. Optical coherence tomography for biological imaging
US12178613B2 (en) 2009-05-28 2024-12-31 Avinger, Inc. Optical coherence tomography for biological imaging
US11717314B2 (en) 2009-07-01 2023-08-08 Avinger, Inc. Atherectomy catheter with laterally-displaceable tip
US10052125B2 (en) 2009-07-01 2018-08-21 Avinger, Inc. Atherectomy catheter with laterally-displaceable tip
US12089868B2 (en) 2009-07-01 2024-09-17 Avinger, Inc. Methods of using atherectomy catheter with deflectable distal tip
US10729326B2 (en) 2009-07-01 2020-08-04 Avinger, Inc. Catheter-based off-axis optical coherence tomography imaging system
US12053260B2 (en) 2009-07-01 2024-08-06 Avinger, Inc. Catheter-based off-axis optical coherence tomography imaging system
US9201232B2 (en) 2009-10-16 2015-12-01 Thorlabs, Inc. Autofocus apparatus
WO2011047365A1 (fr) * 2009-10-16 2011-04-21 Thorlabs, Inc. Appareil de focalisation automatique
US8492693B2 (en) 2009-10-16 2013-07-23 Thorlabs, Inc. Autofocus apparatus
JP2011196693A (ja) * 2010-03-17 2011-10-06 Kitasato Institute オプティカル・コヒーレンス・トモグラフィー装置及び断層像の撮影方法
US10548478B2 (en) 2010-07-01 2020-02-04 Avinger, Inc. Balloon atherectomy catheters with imaging
US11382653B2 (en) 2010-07-01 2022-07-12 Avinger, Inc. Atherectomy catheter
US10349974B2 (en) 2010-07-01 2019-07-16 Avinger, Inc. Atherectomy catheters with longitudinally displaceable drive shafts
US10952763B2 (en) 2011-03-28 2021-03-23 Avinger, Inc. Occlusion-crossing devices
US11903677B2 (en) 2011-03-28 2024-02-20 Avinger, Inc. Occlusion-crossing devices, imaging, and atherectomy devices
US12257029B2 (en) 2011-03-28 2025-03-25 Avinger, Inc. Occlusion-crossing devices, imaging, and atherectomy devices
US11134849B2 (en) 2011-03-28 2021-10-05 Avinger, Inc. Occlusion-crossing devices, imaging, and atherectomy devices
US12137931B2 (en) 2011-03-28 2024-11-12 Avinger, Inc. Occlusion-crossing devices
US9949754B2 (en) 2011-03-28 2018-04-24 Avinger, Inc. Occlusion-crossing devices
US10363062B2 (en) 2011-10-17 2019-07-30 Avinger, Inc. Atherectomy catheters and non-contact actuation mechanism for catheters
US12257003B2 (en) 2011-11-11 2025-03-25 Avinger, Inc. Occlusion-crossing devices, atherectomy devices, and imaging
US11135019B2 (en) 2011-11-11 2021-10-05 Avinger, Inc. Occlusion-crossing devices, atherectomy devices, and imaging
US10952615B2 (en) 2012-05-14 2021-03-23 Avinger, Inc. Optical coherence tomography with graded index fiber for biological imaging
US11647905B2 (en) 2012-05-14 2023-05-16 Avinger, Inc. Optical coherence tomography with graded index fiber for biological imaging
US11406412B2 (en) 2012-05-14 2022-08-09 Avinger, Inc. Atherectomy catheters with imaging
US11206975B2 (en) 2012-05-14 2021-12-28 Avinger, Inc. Atherectomy catheter drive assemblies
US10244934B2 (en) 2012-05-14 2019-04-02 Avinger, Inc. Atherectomy catheter drive assemblies
US12171407B2 (en) 2012-05-14 2024-12-24 Avinger, Inc. Atherectomy catheter drive assemblies
US9380933B2 (en) 2012-06-14 2016-07-05 School Juridical Person Kitasato Institute Method and system for determining power of intraocular lens to be inserted
US10335173B2 (en) 2012-09-06 2019-07-02 Avinger, Inc. Re-entry stylet for catheter
US11284916B2 (en) 2012-09-06 2022-03-29 Avinger, Inc. Atherectomy catheters and occlusion crossing devices
US11723538B2 (en) 2013-03-15 2023-08-15 Avinger, Inc. Optical pressure sensor assembly
US10932670B2 (en) 2013-03-15 2021-03-02 Avinger, Inc. Optical pressure sensor assembly
US11890076B2 (en) 2013-03-15 2024-02-06 Avinger, Inc. Chronic total occlusion crossing devices with imaging
US10722121B2 (en) 2013-03-15 2020-07-28 Avinger, Inc. Chronic total occlusion crossing devices with imaging
US11096717B2 (en) 2013-03-15 2021-08-24 Avinger, Inc. Tissue collection device for catheter
US9854979B2 (en) 2013-03-15 2018-01-02 Avinger, Inc. Chronic total occlusion crossing devices with imaging
US11980386B2 (en) 2013-03-15 2024-05-14 Avinger, Inc. Tissue collection device for catheter
US10130386B2 (en) 2013-07-08 2018-11-20 Avinger, Inc. Identification of elastic lamina to guide interventional therapy
US11944342B2 (en) 2013-07-08 2024-04-02 Avinger, Inc. Identification of elastic lamina to guide interventional therapy
US10806484B2 (en) 2013-07-08 2020-10-20 Avinger, Inc. Identification of elastic lamina to guide interventional therapy
US10470795B2 (en) 2014-02-06 2019-11-12 Avinger, Inc. Atherectomy catheters and occlusion crossing devices
US9592075B2 (en) 2014-02-06 2017-03-14 Avinger, Inc. Atherectomy catheters devices having multi-channel bushings
US10568655B2 (en) 2014-02-06 2020-02-25 Avinger, Inc. Atherectomy catheters devices having multi-channel bushings
US9498247B2 (en) 2014-02-06 2016-11-22 Avinger, Inc. Atherectomy catheters and occlusion crossing devices
US10357277B2 (en) 2014-07-08 2019-07-23 Avinger, Inc. High speed chronic total occlusion crossing devices
US11931061B2 (en) 2014-07-08 2024-03-19 Avinger, Inc. High speed chronic total occlusion crossing devices
US11147583B2 (en) 2014-07-08 2021-10-19 Avinger, Inc. High speed chronic total occlusion crossing devices
US10568520B2 (en) 2015-07-13 2020-02-25 Avinger, Inc. Micro-molded anamorphic reflector lens for image guided therapeutic/diagnostic catheters
US11627881B2 (en) 2015-07-13 2023-04-18 Avinger, Inc. Micro-molded anamorphic reflector lens for image guided therapeutic/diagnostic catheters
US11974830B2 (en) 2015-07-13 2024-05-07 Avinger, Inc. Micro-molded anamorphic reflector lens for image guided therapeutic/diagnostic catheters
US11033190B2 (en) 2015-07-13 2021-06-15 Avinger, Inc. Micro-molded anamorphic reflector lens for image guided therapeutic/diagnostic catheters
US11278248B2 (en) 2016-01-25 2022-03-22 Avinger, Inc. OCT imaging catheter with lag correction
US11399863B2 (en) 2016-04-01 2022-08-02 Avinger, Inc. Atherectomy catheter with serrated cutter
US11957376B2 (en) 2016-04-01 2024-04-16 Avinger, Inc. Atherectomy catheter with serrated cutter
US11344327B2 (en) 2016-06-03 2022-05-31 Avinger, Inc. Catheter device with detachable distal end
US12279789B2 (en) 2016-06-03 2025-04-22 Avinger, Inc. Catheter device with detachable distal end
US11224459B2 (en) 2016-06-30 2022-01-18 Avinger, Inc. Atherectomy catheter with shapeable distal tip
US12161360B2 (en) 2016-06-30 2024-12-10 Avinger, Inc. Atherectomy catheter with shaped distal tip
US20190226832A1 (en) * 2018-01-24 2019-07-25 Precitec Gmbh & Co. Kg Device and a method for distance measurement for a laser processing system, and a laser processing system
US11079218B2 (en) * 2018-01-24 2021-08-03 Precitec Gmbh & Co. Kg Measuring distance using a laser processing system with optical amplifier for amplifying measuring beam or reflected part of measurement beam
US12167867B2 (en) 2018-04-19 2024-12-17 Avinger, Inc. Occlusion-crossing devices
US11793400B2 (en) 2019-10-18 2023-10-24 Avinger, Inc. Occlusion-crossing devices
CN112082498A (zh) * 2020-09-14 2020-12-15 安徽大学 基于相位测量法ofdr应变和温度的抑噪传感方法

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