JPS57146133A - Optical measuring instrument - Google Patents

Optical measuring instrument

Info

Publication number
JPS57146133A
JPS57146133A JP2990781A JP2990781A JPS57146133A JP S57146133 A JPS57146133 A JP S57146133A JP 2990781 A JP2990781 A JP 2990781A JP 2990781 A JP2990781 A JP 2990781A JP S57146133 A JPS57146133 A JP S57146133A
Authority
JP
Japan
Prior art keywords
suspension
decision
light
ratio
data
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.)
Granted
Application number
JP2990781A
Other languages
Japanese (ja)
Other versions
JPS6219697B2 (en
Inventor
Fujiya Takahata
Tadashi Motokawa
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 JP2990781A priority Critical patent/JPS57146133A/en
Publication of JPS57146133A publication Critical patent/JPS57146133A/en
Publication of JPS6219697B2 publication Critical patent/JPS6219697B2/ja
Granted 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6445—Measuring fluorescence polarisation

Abstract

PURPOSE:To obtain data for decision of reacting condition of suspension, by a method wherein ratio of luminous intensity before and after filtration of the suspension is estimated. CONSTITUTION:Light from a light source 1 is passed through a spectroscope 2 and a polarizer 3 and irradiated onto suspension specimen disposed in a light measuring position 4. Parallel and perpendicular polarization components of fluorescence from the specimen are passed through a polarizer 5 which is rotated in 90 deg. periodically by a pulse motor 12 according to command from a control unit 10, and then both polarization components are entered in a spectroscope 6. Light emanating from the spectroscope 6 is detected by a light detector 7 and the output signal is passed through a pre-amplifier 8 and ADC 9 and stored in a memory 13. Filtration of the suspension is carried out according to command from the control unit 10, and after the filtration liquid is transferred to the measuring position 4 similar measurement is carried out and data is stored in the memory 13. At arithmetic unit 14 calculates ratio of both data and a decision unit determines whether or not the ratio falls within a prescribed range, and a display unit 16 indicates the ratio and decision result. In this constitution, data for decision of reacting condition of the suspension is obtained.
JP2990781A 1981-03-04 1981-03-04 Optical measuring instrument Granted JPS57146133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2990781A JPS57146133A (en) 1981-03-04 1981-03-04 Optical measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2990781A JPS57146133A (en) 1981-03-04 1981-03-04 Optical measuring instrument

Publications (2)

Publication Number Publication Date
JPS57146133A true JPS57146133A (en) 1982-09-09
JPS6219697B2 JPS6219697B2 (en) 1987-04-30

Family

ID=12289052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2990781A Granted JPS57146133A (en) 1981-03-04 1981-03-04 Optical measuring instrument

Country Status (1)

Country Link
JP (1) JPS57146133A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109950A (en) * 1979-02-17 1980-08-23 Japan Spectroscopic Co Measuring instrument for polarized fluorescence
JPS6219697A (en) * 1985-07-17 1987-01-28 Hitachi Ltd Heat exchanger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109950A (en) * 1979-02-17 1980-08-23 Japan Spectroscopic Co Measuring instrument for polarized fluorescence
JPS6219697A (en) * 1985-07-17 1987-01-28 Hitachi Ltd Heat exchanger

Also Published As

Publication number Publication date
JPS6219697B2 (en) 1987-04-30

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