JPS6432151A - Detector - Google Patents

Detector

Info

Publication number
JPS6432151A
JPS6432151A JP18955087A JP18955087A JPS6432151A JP S6432151 A JPS6432151 A JP S6432151A JP 18955087 A JP18955087 A JP 18955087A JP 18955087 A JP18955087 A JP 18955087A JP S6432151 A JPS6432151 A JP S6432151A
Authority
JP
Japan
Prior art keywords
photoconductor
detected
light
measurement
high sensitivity
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.)
Pending
Application number
JP18955087A
Other languages
Japanese (ja)
Inventor
Yasuo Katano
Hiroyuki Horiguchi
Toshiyuki Furuta
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP18955087A priority Critical patent/JPS6432151A/en
Publication of JPS6432151A publication Critical patent/JPS6432151A/en
Pending 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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To measure an objective material with high sensitivity by a spectrochemical analyzing equipment which utilizes an evanescent wave by sending light to a density sensor element made of a photoconductive medium layer containing a material to be detected, and measuring light exiting from it. CONSTITUTION:A photoconductor 2 containing the material to be detected is provided on a plane transparent synthetic resin plate 1. This photoconductor 2 in use is transparent and contains the material to be detected uniformly and, for example, polyacrylamide is used; and said material uses thymol blue when said material is ammonia, and glucose oxidase is used when said material is glucose, etc. Then when a measurement is taken, the material is brought into contact with the photoconductor 2 and then diffused in the photoconductor 2. Then light 6 from a laser 7 is made incident on the photoconductor 2 and propagated therein, and its projection light is photodetected by a photodetecting element 8. The light output of the photodetecting element 8 is detected and the concentration of the material is measured. The material is therefore incorporated in the photoconductor, so the measurement is performed with high sensitivity and the device can be reduced in size.
JP18955087A 1987-07-28 1987-07-28 Detector Pending JPS6432151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18955087A JPS6432151A (en) 1987-07-28 1987-07-28 Detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18955087A JPS6432151A (en) 1987-07-28 1987-07-28 Detector

Publications (1)

Publication Number Publication Date
JPS6432151A true JPS6432151A (en) 1989-02-02

Family

ID=16243196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18955087A Pending JPS6432151A (en) 1987-07-28 1987-07-28 Detector

Country Status (1)

Country Link
JP (1) JPS6432151A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020151A3 (en) * 1994-01-21 1995-08-17 Fiberchem Inc Reducing the effects of water vapor and liquid water on optical waveguide sensors (ows) and optical waveguide chemical sensors (owcs)
JP2007286068A (en) * 2007-06-18 2007-11-01 Fuji Xerox Co Ltd Photodetector, its usage, and image forming apparatus
JP2008527334A (en) * 2004-12-30 2008-07-24 コーニング インコーポレイテッド Label-free detection of unpurified samples

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020151A3 (en) * 1994-01-21 1995-08-17 Fiberchem Inc Reducing the effects of water vapor and liquid water on optical waveguide sensors (ows) and optical waveguide chemical sensors (owcs)
JP2008527334A (en) * 2004-12-30 2008-07-24 コーニング インコーポレイテッド Label-free detection of unpurified samples
JP2007286068A (en) * 2007-06-18 2007-11-01 Fuji Xerox Co Ltd Photodetector, its usage, and image forming apparatus

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