GB1100810A - Method and apparatus for the detection of a component in a gas - Google Patents

Method and apparatus for the detection of a component in a gas

Info

Publication number
GB1100810A
GB1100810A GB2358665A GB2358665A GB1100810A GB 1100810 A GB1100810 A GB 1100810A GB 2358665 A GB2358665 A GB 2358665A GB 2358665 A GB2358665 A GB 2358665A GB 1100810 A GB1100810 A GB 1100810A
Authority
GB
United Kingdom
Prior art keywords
tape
gas
component
photo
test area
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
GB2358665A
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.)
RES APPLIANCE Co
Original Assignee
RES APPLIANCE Co
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 RES APPLIANCE Co filed Critical RES APPLIANCE Co
Publication of GB1100810A publication Critical patent/GB1100810A/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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/8483—Investigating reagent band

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (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 The Use Of Chemical Reactions (AREA)

Abstract

1,100,810. Photo-electric gas monitoring. RESEARCH APPLIANCE CO. June 2, 1965 [June 3, 1964], No. 23586/65. Heading G1A. A gaseous or particulate component of a gas is detected by passing the gas through a test area of a tape which darkens either due to chemical reaction of the gaseous component with the tape or on the other hand due to deposition of the particles. The darkening of the tape is sensed photo-electrically and upon reaching a predetermined value causes the tape to be shifted to expose a fresh test area to the gas 3; if the predetermined level is reached within a predetermined time, thereby indicating an undesirable concentration of the component an alarm is additionally sounded. In the embodiment shown in Fig. 4, a gas stream containing hydrogen sulphide enters at tube 57, passes through a lead acetate tape 15, and exhausts via tube 56. The tape is forced against a sealing ring 47 by a lower ring 49 for the period of the test and upon the light falling on photo-cell 54 reaching a predetermined value, the solenoid 59 is operated to lower the ring 49 and permit the tape to be advanced. For each fresh test area before the period of the test begins and before there is any detectable darkening by the gas. The instrument is automatically calibrated by adjusting the intensity of the lamp until the detector output has a standard value, thereby compensating for variations in the opacity of the tape.
GB2358665A 1964-06-03 1965-06-02 Method and apparatus for the detection of a component in a gas Expired GB1100810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37226864A 1964-06-03 1964-06-03

Publications (1)

Publication Number Publication Date
GB1100810A true GB1100810A (en) 1968-01-24

Family

ID=23467425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2358665A Expired GB1100810A (en) 1964-06-03 1965-06-02 Method and apparatus for the detection of a component in a gas

Country Status (1)

Country Link
GB (1) GB1100810A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017139568A1 (en) * 2016-02-11 2017-08-17 Honeywell International Inc. Probing film that absorbs and reacts with gases, with transmitted light for higher gas sensitivity
US12111265B2 (en) 2016-02-11 2024-10-08 Honeywell International Inc. Probing film that absorbs and reacts with gases, with light of different wavelengths for higher gas sensitivity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017139568A1 (en) * 2016-02-11 2017-08-17 Honeywell International Inc. Probing film that absorbs and reacts with gases, with transmitted light for higher gas sensitivity
US11788970B2 (en) 2016-02-11 2023-10-17 Honeywell International Inc. Probing film that absorbs and reacts with gases, with transmitted light for higher gas sensitivity
US12111265B2 (en) 2016-02-11 2024-10-08 Honeywell International Inc. Probing film that absorbs and reacts with gases, with light of different wavelengths for higher gas sensitivity

Similar Documents

Publication Publication Date Title
GB1298978A (en) Improvements in or relating to the measurement of gaseous mixtures
GB1500739A (en) Gas measuring apparatus and methods
SE7709081L (en) DETECTOR FOR AUTOMATIC DETECTION OF AIR IN A KNOWLEDGE
DE3464662D1 (en) Gain stabilized natural gamma ray detection of casing thickness in a borehole
GB979850A (en) Improvements in methods and apparatus for measuring the relative amount of a given component of a mixture of substances by selective absorption of infrared radiation
GB1504737A (en) Apparatus for monitoring clarity of a fluid sample
GB1426478A (en) Non-dispersive infrared fluid analyzer with compensation of absorptive and mechanical effects of ambient conditions
CA2038170A1 (en) Chemical luminescence-detecting apparatus
ES461675A1 (en) Reducing noise in uranium exploration
GB1396564A (en) Methods of and apparatus for infrared gas analysis
US3585845A (en) Gas leak detectors
GB1396760A (en) Non-dispersive infrared gas analyzer having sample and reference beams using flow sensitive detector and with unbalanced operation
GB1100810A (en) Method and apparatus for the detection of a component in a gas
GB1398977A (en) Gas detector
GB1423460A (en) Self-equalising industrial photometer
GB1488460A (en) Solid state method and apparatus for measuring so2
JPS5723843A (en) Measuring apparatus of concentration of respiratory gas
EP0089630A3 (en) Device for measuring oxygen concentration in exhaust gas
JPS57182153A (en) Gas detector
GB1346081A (en) Method and apparatus for detecting mercury vapour in a gas
GB1165769A (en) Improvements in and relating to Apparatus for Sampling an Atmosphere
KR970010977B1 (en) Concentration measuring method using photo absorption
GB1402440A (en) Infra-red gas analyser
SU542406A1 (en) Radioactive isotope device for checking moisture content
GB948989A (en) Photoelectric trend detector