GB1440052A - Optical measuring head for a photometer - Google Patents

Optical measuring head for a photometer

Info

Publication number
GB1440052A
GB1440052A GB1233874A GB1233874A GB1440052A GB 1440052 A GB1440052 A GB 1440052A GB 1233874 A GB1233874 A GB 1233874A GB 1233874 A GB1233874 A GB 1233874A GB 1440052 A GB1440052 A GB 1440052A
Authority
GB
United Kingdom
Prior art keywords
cell
walls
photometer
march
test
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.)
Expired
Application number
GB1233874A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1440052A publication Critical patent/GB1440052A/en
Expired 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions

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)
  • Optical Measuring Cells (AREA)

Abstract

1440052 Photometric head BAYER AG 20 March 1974 [24 March 1973] 12338/74 Heading G1A A photometric head comprises, a light source 1, a test cell 2, walls 5 of which consist of material permeable to the substance to be tested, a filter 3 for separating out a particular wavelength or wavelength range, and a detector 4. A pipe 6 is connected to a pump 7 or via a throttle to a zone of lower pressure than the area surrounding the cell so that test material is sucked through the walls 5 into the cell 2, the material being cleaned by filtering as it enters. Periodically, a cleaning gas may be passed through the cell walls to remove particles and if it has zero absorption, may be used as a zeroing gas for the photometer. The suction line may include a pressure flow regulator. The apparatus has application in monitoring workroom or external atmospheres e.g. for explosion warning or emission control purposes, or in analysis of liquids.
GB1233874A 1973-03-24 1974-03-20 Optical measuring head for a photometer Expired GB1440052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732314827 DE2314827A1 (en) 1973-03-24 1973-03-24 PROCEDURE AND DEVICE FOR CLEANING AND DELIVERING MEASURING MEDIA INTO A MEASURING HEAD AND AUTOMATIC CLEANING OF THIS MEASURING HEAD

Publications (1)

Publication Number Publication Date
GB1440052A true GB1440052A (en) 1976-06-23

Family

ID=5875846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233874A Expired GB1440052A (en) 1973-03-24 1974-03-20 Optical measuring head for a photometer

Country Status (2)

Country Link
DE (1) DE2314827A1 (en)
GB (1) GB1440052A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240747A (en) * 1979-10-03 1980-12-23 Battelle Memorial Institute Refractive-index responsive light-signal system
ATE21172T1 (en) * 1980-11-24 1986-08-15 Measurex Corp SYSTEM AND METHOD FOR DETERMINING THE GAS CONCENTRATION IN A FLOWING GAS STREAM.
DE102005035932A1 (en) * 2005-07-28 2007-02-08 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optical sensor for in-situ measurements

Also Published As

Publication number Publication date
DE2314827A1 (en) 1974-09-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee