JPS6449943A - Physical property measuring instrument for liquid - Google Patents

Physical property measuring instrument for liquid

Info

Publication number
JPS6449943A
JPS6449943A JP20716187A JP20716187A JPS6449943A JP S6449943 A JPS6449943 A JP S6449943A JP 20716187 A JP20716187 A JP 20716187A JP 20716187 A JP20716187 A JP 20716187A JP S6449943 A JPS6449943 A JP S6449943A
Authority
JP
Japan
Prior art keywords
liquid
light receiving
output
wavelength
refractive index
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
JP20716187A
Other languages
Japanese (ja)
Inventor
Toshiyuki Furuta
Masanori Horiie
Yasuo Katano
Hiroyuki Horiguchi
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 JP20716187A priority Critical patent/JPS6449943A/en
Publication of JPS6449943A publication Critical patent/JPS6449943A/en
Pending legal-status Critical Current

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  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To measure the refractive index and absorbance of a liquid at the same time by providing at least two optical measurement part each consisting of a light source, a light receiving element, and an optical waveguide. CONSTITUTION:Two optical waveguides 2 and 2 are immersed in the liquid 4 to be measured, light sources 1 and 1 are arranged at their one-terminal sides while light receiving elements 3 and 3 are arranged at the other-terminal sides, and the output terminals of the light receiving elements 3 and 3 are connected to an arithmetic processing storage device 6. The wavelengths of light beams emitted by the light sources 1 and 1 are set to different values A and B. The output and refractive index of a optical waveguide of the wavelength A are in prescribed relation and the relation between the output and absorptivity of a waveguide of the wavelength B varies with the wavelength. The output levels of the wavelengths detected by the two light receiving elements 3 and 3 are processed by an arithmetic unit 6 to measure the refractive index and absorptivity of the object liquid 4.
JP20716187A 1987-08-19 1987-08-19 Physical property measuring instrument for liquid Pending JPS6449943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20716187A JPS6449943A (en) 1987-08-19 1987-08-19 Physical property measuring instrument for liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20716187A JPS6449943A (en) 1987-08-19 1987-08-19 Physical property measuring instrument for liquid

Publications (1)

Publication Number Publication Date
JPS6449943A true JPS6449943A (en) 1989-02-27

Family

ID=16535236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20716187A Pending JPS6449943A (en) 1987-08-19 1987-08-19 Physical property measuring instrument for liquid

Country Status (1)

Country Link
JP (1) JPS6449943A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014956A1 (en) * 1990-03-28 1991-10-03 Fiberchem, Inc. Fiber optic refractive index sensor using metal cladding
US5121986A (en) * 1990-04-17 1992-06-16 Atlantic Richfield Company Method and apparatus for determining composition of fuel mixtures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014956A1 (en) * 1990-03-28 1991-10-03 Fiberchem, Inc. Fiber optic refractive index sensor using metal cladding
US5121986A (en) * 1990-04-17 1992-06-16 Atlantic Richfield Company Method and apparatus for determining composition of fuel mixtures

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