GB909414A - Apparatus for the detection of electrically active components in an ambient - Google Patents

Apparatus for the detection of electrically active components in an ambient

Info

Publication number
GB909414A
GB909414A GB2153860D GB2153860D GB909414A GB 909414 A GB909414 A GB 909414A GB 2153860 D GB2153860 D GB 2153860D GB 2153860 D GB2153860 D GB 2153860D GB 909414 A GB909414 A GB 909414A
Authority
GB
United Kingdom
Prior art keywords
ambient
detection
active components
electrically active
electrically
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
GB2153860D
Inventor
Moses Gamzu Jacobson
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.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances 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
Priority claimed from US657271A external-priority patent/US2965842A/en
Application filed by Mine Safety Appliances Co filed Critical Mine Safety Appliances Co
Priority to GB2153860D priority Critical patent/GB909414A/en
Publication of GB909414A publication Critical patent/GB909414A/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
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/129—Diode type sensors, e.g. gas sensitive Schottky diodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Emergency Alarm Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

909,414. Measuring electrically. MINE SAFETY APPLIANCES CO. Nov. 12, 1958, No. 21538/62. Divided out of 909,413. Class 40 (1). The description is identical with that of Specification 909,413, the claims relate to the method of standardising the detectors described therein. Specifications 909,411 and 909,412 also are referred to.
GB2153860D 1957-05-06 1958-11-12 Apparatus for the detection of electrically active components in an ambient Expired GB909414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2153860D GB909414A (en) 1957-05-06 1958-11-12 Apparatus for the detection of electrically active components in an ambient

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US657271A US2965842A (en) 1957-05-06 1957-05-06 Detection of ambient components by semiconductors
DEM39483A DE1090002B (en) 1957-05-06 1958-11-03 Method for producing the reversible responsiveness of semiconductor elements to gases or the like and measuring device for examining gases or the like.
GB2153860D GB909414A (en) 1957-05-06 1958-11-12 Apparatus for the detection of electrically active components in an ambient

Publications (1)

Publication Number Publication Date
GB909414A true GB909414A (en) 1962-10-31

Family

ID=27211541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2153860D Expired GB909414A (en) 1957-05-06 1958-11-12 Apparatus for the detection of electrically active components in an ambient

Country Status (1)

Country Link
GB (1) GB909414A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433179A1 (en) * 1974-07-10 1976-01-29 Nohmi Bosai Kogyo Co Ltd Detector for gas mixts. has two semiconductor sensing elements - giving different selective responses to different gas constituents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433179A1 (en) * 1974-07-10 1976-01-29 Nohmi Bosai Kogyo Co Ltd Detector for gas mixts. has two semiconductor sensing elements - giving different selective responses to different gas constituents

Similar Documents

Publication Publication Date Title
GB936623A (en) Improvements in or relating to apparatus for detecting small particles in a space
GB909414A (en) Apparatus for the detection of electrically active components in an ambient
GB1001876A (en) Apparatus for detecting radiation
CA611204A (en) Gas leak detector, alarm and shut-off device
CA632748A (en) Apparatus for detecting and analysing low gaseous concentrations
CA529775A (en) Gaging and testing apparatus
AU220006B2 (en) Process and device forthe electrical detection of aerosols in gases
CA607993A (en) Apparatus for detecting and analysing low gaseous concentrations
ES256732A3 (en) Flame detector (Machine-translation by Google Translate, not legally binding)
AU235365B2 (en) Improvements in apparatus for measuring and classifying womens stockings
AU3364757A (en) Process and device forthe electrical detection of aerosols in gases
GB898162A (en) Fluid pressure responsive apparatus and servo apparatus therefor
AU260917B2 (en) Combustible gas detecting elements and apparatus
AU5691660A (en) Improvements in apparatus for measuring and classifying womens stockings
CA592824A (en) Substituted piperazines and methods for obtaining same
CA589677A (en) Oscillator and amplifier circuit
CA533290A (en) Method of detection and electric detector of acupuncture and ignipuncture points
AU2010756A (en) Improvements in condition measuring and indication apparatus
CA622271A (en) Apparatus for testing and sorting articles
CA600757A (en) Apparatus for testing natural and synthetic rubbers at high temperatures
CA595647A (en) Condition responsive apparatus and method
AU241474B2 (en) Ultrahigh vacuum method and apparatus
CA534320A (en) Dew-point measuring device and method
AU1435962A (en) Combustible gas detecting elements and apparatus
CA523944A (en) Electrical conductivity testing apparatus