JPS51124977A - Automatic refractometer - Google Patents

Automatic refractometer

Info

Publication number
JPS51124977A
JPS51124977A JP4964375A JP4964375A JPS51124977A JP S51124977 A JPS51124977 A JP S51124977A JP 4964375 A JP4964375 A JP 4964375A JP 4964375 A JP4964375 A JP 4964375A JP S51124977 A JPS51124977 A JP S51124977A
Authority
JP
Japan
Prior art keywords
automatic refractometer
refractometer
automatic
easy
calibrate
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
JP4964375A
Other languages
Japanese (ja)
Inventor
Katsuji Yamashita
Kyoichi Ozawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4964375A priority Critical patent/JPS51124977A/en
Publication of JPS51124977A publication Critical patent/JPS51124977A/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

Abstract

PURPOSE:This is an automatic refractometer so that measures a concentration and a specific gravity of a solution sample in easy handling to be able to calibrate electrically easy and wide range.
JP4964375A 1975-04-25 1975-04-25 Automatic refractometer Pending JPS51124977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4964375A JPS51124977A (en) 1975-04-25 1975-04-25 Automatic refractometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4964375A JPS51124977A (en) 1975-04-25 1975-04-25 Automatic refractometer

Publications (1)

Publication Number Publication Date
JPS51124977A true JPS51124977A (en) 1976-10-30

Family

ID=12836880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4964375A Pending JPS51124977A (en) 1975-04-25 1975-04-25 Automatic refractometer

Country Status (1)

Country Link
JP (1) JPS51124977A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992330A (en) * 1982-10-20 1984-05-28 シエル・インタ−ナシヨナル・リサ−チ・マ−トスハツペイ・ベ−・ヴエ− Centrifugal analyzer
JPS6083953U (en) * 1983-11-16 1985-06-10 中川　進 concentration meter
JPS61203348U (en) * 1985-06-12 1986-12-20
JPS6212840A (en) * 1985-07-10 1987-01-21 Morioka Shoji Kk Method and instrument for measuring concentration of liquid to be examined
JPS62104145U (en) * 1985-12-20 1987-07-02
JPS6426128A (en) * 1987-04-17 1989-01-27 Ngk Spark Plug Co Detector for fluid mixing ratio of gasoline and alcohol or the like
US7492447B2 (en) 2002-10-30 2009-02-17 Atago Co., Ltd. Refractometer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311749A (en) * 1963-03-13 1967-03-28 Davy And United Instr Ltd Radiation sensitive position detecting and length measuring apparatus
US3672777A (en) * 1969-10-30 1972-06-27 Sopelem Apparatus for sensing a change in light intensity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311749A (en) * 1963-03-13 1967-03-28 Davy And United Instr Ltd Radiation sensitive position detecting and length measuring apparatus
US3672777A (en) * 1969-10-30 1972-06-27 Sopelem Apparatus for sensing a change in light intensity

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992330A (en) * 1982-10-20 1984-05-28 シエル・インタ−ナシヨナル・リサ−チ・マ−トスハツペイ・ベ−・ヴエ− Centrifugal analyzer
JPS6083953U (en) * 1983-11-16 1985-06-10 中川　進 concentration meter
JPS61203348U (en) * 1985-06-12 1986-12-20
JPS6212840A (en) * 1985-07-10 1987-01-21 Morioka Shoji Kk Method and instrument for measuring concentration of liquid to be examined
JPH056138B2 (en) * 1985-07-10 1993-01-25 Morioka Shoji Kk
JPS62104145U (en) * 1985-12-20 1987-07-02
JPH0326443Y2 (en) * 1985-12-20 1991-06-07
JPS6426128A (en) * 1987-04-17 1989-01-27 Ngk Spark Plug Co Detector for fluid mixing ratio of gasoline and alcohol or the like
JPH0549178B2 (en) * 1987-04-17 1993-07-23 Ngk Spark Plug Co
US7492447B2 (en) 2002-10-30 2009-02-17 Atago Co., Ltd. Refractometer

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