JPS57158531A - Specific photometry system - Google Patents

Specific photometry system

Info

Publication number
JPS57158531A
JPS57158531A JP4393181A JP4393181A JPS57158531A JP S57158531 A JPS57158531 A JP S57158531A JP 4393181 A JP4393181 A JP 4393181A JP 4393181 A JP4393181 A JP 4393181A JP S57158531 A JPS57158531 A JP S57158531A
Authority
JP
Japan
Prior art keywords
circuit
monitor
motor
gains
photomultiplier
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
JP4393181A
Other languages
Japanese (ja)
Inventor
Taro Nogami
Mitsuyoshi Kimura
Masahiro Taki
Hiroshi Hirose
Masamichi Tsukada
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 JP4393181A priority Critical patent/JPS57158531A/en
Publication of JPS57158531A publication Critical patent/JPS57158531A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To perform a stable measurement, by making the level of a monitoring signal not so low as to generate noise, even when a band pass is made small extremely. CONSTITUTION:A monitor signal given from a monitor side photomultiplier 1 is entered the denominator side of a division circuit 10 through a monitor side amplifier 3. Measured signal given from a measuring side of a photomultiplier 2 is entered the molecule side of the circuit 10 through a measuring side amplifier 4. Further, the result of a specific operation is recorded by a recording device 11. On the one hand, a slit of a slit assembly 20 of an exciting side spectrometer is shut and opened by a revolution of a stepping motor 19. A driving pulse 16 and a positive-reverse control signal are sent to a driving circuit 18 of the motor 19 from a control circuit 14. Numbers of the pulse 16 are counted by a counter 15 and a relay 12 is driven when said value is reached at a specified value, then, gains of a motor side preamplifier 13 are altered. Accordingly, the noise by specific photometry is not present on the data by examining a condition switching the gains preliminarily.
JP4393181A 1981-03-27 1981-03-27 Specific photometry system Pending JPS57158531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4393181A JPS57158531A (en) 1981-03-27 1981-03-27 Specific photometry system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4393181A JPS57158531A (en) 1981-03-27 1981-03-27 Specific photometry system

Publications (1)

Publication Number Publication Date
JPS57158531A true JPS57158531A (en) 1982-09-30

Family

ID=12677428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4393181A Pending JPS57158531A (en) 1981-03-27 1981-03-27 Specific photometry system

Country Status (1)

Country Link
JP (1) JPS57158531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9403468B2 (en) 2013-06-13 2016-08-02 Atlas Copco Rock Drills Ab Foldable tailgate, a load bed with such a foldable tailgate and a vehicle with such a load bed

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350885A (en) * 1976-10-20 1978-05-09 Hitachi Ltd Fluorescence photometer
JPS5562321A (en) * 1978-11-02 1980-05-10 Hitachi Ltd Spectrophotometer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350885A (en) * 1976-10-20 1978-05-09 Hitachi Ltd Fluorescence photometer
JPS5562321A (en) * 1978-11-02 1980-05-10 Hitachi Ltd Spectrophotometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9403468B2 (en) 2013-06-13 2016-08-02 Atlas Copco Rock Drills Ab Foldable tailgate, a load bed with such a foldable tailgate and a vehicle with such a load bed

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