JPS5451578A - Photometer - Google Patents

Photometer

Info

Publication number
JPS5451578A
JPS5451578A JP11670277A JP11670277A JPS5451578A JP S5451578 A JPS5451578 A JP S5451578A JP 11670277 A JP11670277 A JP 11670277A JP 11670277 A JP11670277 A JP 11670277A JP S5451578 A JPS5451578 A JP S5451578A
Authority
JP
Japan
Prior art keywords
light
divided
cells
flow cells
flux
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
JP11670277A
Other languages
Japanese (ja)
Inventor
Norio Kaneko
Hitoshi Komatsu
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 JP11670277A priority Critical patent/JPS5451578A/en
Publication of JPS5451578A publication Critical patent/JPS5451578A/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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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 realize measurement with last drift and not affected by external conditions by dividing the flux of light into two portions just before the cells when detecting the light transmitted from the light source with a detector and a pair of cells arranged in parallel. CONSTITUTION:The only and one beam of light from light source 1 is imaged on flow cells 3 and 3' by means of a lens 6, and is photoelectrically converted by optical filters 4, 4' and detectors 5, 5' arranged in parallel. At this time, the flux of light is divided into two portions by prisms 9, 10 placed just in front of the flow cells 3, 3'. In this way, since the only and one beam is divided just before the flow cells, effects of swifting air and external light are smaller. Moreover, since the beam is divided into two equal fluxes, the intensity ratio of the two beams is always kept constant, so that the drift may be improved.
JP11670277A 1977-09-30 1977-09-30 Photometer Pending JPS5451578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11670277A JPS5451578A (en) 1977-09-30 1977-09-30 Photometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11670277A JPS5451578A (en) 1977-09-30 1977-09-30 Photometer

Publications (1)

Publication Number Publication Date
JPS5451578A true JPS5451578A (en) 1979-04-23

Family

ID=14693709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11670277A Pending JPS5451578A (en) 1977-09-30 1977-09-30 Photometer

Country Status (1)

Country Link
JP (1) JPS5451578A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5573405A (en) * 1978-11-07 1980-06-03 Encomech Eng Services Thermal shield device
JPS60113151A (en) * 1983-11-24 1985-06-19 Sekisui Chem Co Ltd Analysis method with high-sensitivity liquid chromatography

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5573405A (en) * 1978-11-07 1980-06-03 Encomech Eng Services Thermal shield device
JPS60113151A (en) * 1983-11-24 1985-06-19 Sekisui Chem Co Ltd Analysis method with high-sensitivity liquid chromatography

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