JPS5690244A - Refraction index meter for liquid - Google Patents

Refraction index meter for liquid

Info

Publication number
JPS5690244A
JPS5690244A JP16893579A JP16893579A JPS5690244A JP S5690244 A JPS5690244 A JP S5690244A JP 16893579 A JP16893579 A JP 16893579A JP 16893579 A JP16893579 A JP 16893579A JP S5690244 A JPS5690244 A JP S5690244A
Authority
JP
Japan
Prior art keywords
light
liquid
refraction index
reflective
rod
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
JP16893579A
Other languages
Japanese (ja)
Inventor
Tetsuya Yamazaki
Takashi Kishimoto
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.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass 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 Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP16893579A priority Critical patent/JPS5690244A/en
Publication of JPS5690244A publication Critical patent/JPS5690244A/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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
    • G01N21/431—Dip refractometers, e.g. using optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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 easily measure real-time by immersing the surface of a transparent substance of higher refraction index than a liquid to be measured in a liquid to be measured, making a light containing a component of a prearranged angle incident onto the surface of a transparent substance and detecting a quantity of reflective light on the surface. CONSTITUTION:A light from a luminous diode 4 connected to a drive circuit 26 is input to a supertransparent quartz glass rod 7 of higher refraction index than a sugar solution 9 where the tip is immersed through the intermediary of a light focusing rod lens 3 and a beam splitter 6. A light entering into the rod runs into the peripheral surface and a light at shaper angle than a total reflective critical angle, totally reflecting, reaching the bottom of a quartz rod 7. After this process, it is reflected in a reflective membrane 8 and is contrarily propagated, being photoelectrically converted by means of a phototransistor 5 through a half mirror 6 and a focusing rod lens 27. Finally this photoelectrically converted light is indicated on a motor 29. Accordingly, if a relationship between an index of refraction and the quantity of reflective light is sought on a few kinds of liquid, it is possible to easily measure real-time the refraction index of an unknown liquid.
JP16893579A 1979-12-25 1979-12-25 Refraction index meter for liquid Pending JPS5690244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16893579A JPS5690244A (en) 1979-12-25 1979-12-25 Refraction index meter for liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16893579A JPS5690244A (en) 1979-12-25 1979-12-25 Refraction index meter for liquid

Publications (1)

Publication Number Publication Date
JPS5690244A true JPS5690244A (en) 1981-07-22

Family

ID=15877263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16893579A Pending JPS5690244A (en) 1979-12-25 1979-12-25 Refraction index meter for liquid

Country Status (1)

Country Link
JP (1) JPS5690244A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915841A (en) * 1982-07-19 1984-01-26 Nippon Telegr & Teleph Corp <Ntt> Refractive index measuring apparatus
JPS60149940A (en) * 1984-01-17 1985-08-07 Nagoyashi Optical fiber refractive index sensor
EP0194732A2 (en) * 1985-03-13 1986-09-17 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Sensor for the measurement of the refractive index of a fluid and/or phase boundary between two fluids by means of visible or invisible light

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915841A (en) * 1982-07-19 1984-01-26 Nippon Telegr & Teleph Corp <Ntt> Refractive index measuring apparatus
JPS6334421B2 (en) * 1982-07-19 1988-07-11 Nippon Telegraph & Telephone
JPS60149940A (en) * 1984-01-17 1985-08-07 Nagoyashi Optical fiber refractive index sensor
JPH0330810B2 (en) * 1984-01-17 1991-05-01 Nagoya City
EP0194732A2 (en) * 1985-03-13 1986-09-17 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Sensor for the measurement of the refractive index of a fluid and/or phase boundary between two fluids by means of visible or invisible light

Similar Documents

Publication Publication Date Title
JPS6444819A (en) Level gage utilizing laser light
JPS57142546A (en) Infrared multiple reflection type oil concentration measuring apparatus
WO1991013323A3 (en) Fiber optic fuel and liquid gauge
JPS5690244A (en) Refraction index meter for liquid
SE8301800L (en) DEVICE FOR DETERMINING A DENSITY, DENSITY NUMBER, CONCENTRATION, ETC
JPS5690243A (en) Refraction index meter for liquid
JPS6491007A (en) Body-configuration measuring apparatus
JPS57194324A (en) Optical temperature measuring device
JPH072960U (en) Ellipsometer Method for Measuring Samples in Solution
JPS5720636A (en) Measuring device for transmittance of lens
SU131522A1 (en) The method for determining the refractive index of turbid and torn liquids using a refractometer
JPS57146115A (en) Discharge transmitter
SU125933A1 (en) A device for measuring the area of actual contact between the contacting surfaces of metallic and non-metallic samples
JPS56130606A (en) Optical measuring device for thickness of transparent material
JPS56107149A (en) Densitometer
JPS56166413A (en) Optical sensor
JPS551520A (en) Liquid inspecting device
SU1656356A1 (en) Method of measuring acoustic pressure fluctuations
JPS55411A (en) Surface roughness measurement with laser beam
JPS5763430A (en) Temperature measurement for deep part by laser
JPS52135754A (en) End reflector for optical fiber
JP2794829B2 (en) Optical fiber refractometer
US3873208A (en) Measuring the index of refraction
SU503169A1 (en) The method of determining the transparency of the sample
JPS57153250A (en) Measuring apparatus of spectral transmissivity of polarizable sample