GB913551A - Improvements relating to apparatus for detecting ionizing radiation - Google Patents

Improvements relating to apparatus for detecting ionizing radiation

Info

Publication number
GB913551A
GB913551A GB511/59A GB51159A GB913551A GB 913551 A GB913551 A GB 913551A GB 511/59 A GB511/59 A GB 511/59A GB 51159 A GB51159 A GB 51159A GB 913551 A GB913551 A GB 913551A
Authority
GB
United Kingdom
Prior art keywords
ionizing radiation
jan
pulses
valve
improvements relating
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
GB511/59A
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
Minneapolis Honeywell Regulator 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 Honeywell Inc, Minneapolis Honeywell Regulator Co filed Critical Honeywell Inc
Publication of GB913551A publication Critical patent/GB913551A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/12—Provision for actuation of an alarm
    • G01T7/125—Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Abstract

913,551. Pulse - discriminating circuits. MINNEAPOLIS - HONEYWELL REGULATOR CO. Jan. 6, 1959 [Jan. 8, 1958], No. 511/59. Addition to 861,717. Class 40 (6). [Also in Group XL (b)] Pulses from a quenched Geiger-Muller tube circuit arising from sustained incident ionizing radiation (see Group XL (b)), appear on line 328 and are applied via paths with different integration time constants introduced by capacitors 330, 332 to the grids of valve 300. Timecoincidence of grid inputs actuates relay 306, the valve normally being biased-offby capacitor 323. Random pulses, e.g. from natural background radiation do not give coincidence and the relay remains de-energized.
GB511/59A 1958-01-08 1959-01-06 Improvements relating to apparatus for detecting ionizing radiation Expired GB913551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US707791A US2919438A (en) 1958-01-08 1958-01-08 Condition sensing apparatus

Publications (1)

Publication Number Publication Date
GB913551A true GB913551A (en) 1962-12-19

Family

ID=24843178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB511/59A Expired GB913551A (en) 1958-01-08 1959-01-06 Improvements relating to apparatus for detecting ionizing radiation

Country Status (2)

Country Link
US (1) US2919438A (en)
GB (1) GB913551A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060416A (en) * 1960-03-18 1962-10-23 Honeywell Regulator Co Supervised signal system
US3110814A (en) * 1961-07-11 1963-11-12 Charles E Wright Light responsive device for producing sounds
US3396386A (en) * 1965-11-08 1968-08-06 Honeywell Inc Radiation detecting apparatus with self-check
US3501652A (en) * 1967-04-28 1970-03-17 Electronics Corp America Circuit arrangement employing double integration for use in combustion supervision systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632040A (en) * 1952-05-01 1953-03-17 Rabinow Jacob Automatic headlight dimmer
US2721276A (en) * 1952-11-19 1955-10-18 Honeywell Regulator Co Condition sensing apparatus
US2834008A (en) * 1953-04-28 1958-05-06 Petcar Res Corp Flame detector system
USRE25598E (en) * 1954-01-25 1964-06-16 Shutter
US2762034A (en) * 1954-02-12 1956-09-04 Electronics Corp America Fire and explosion detection apparatus

Also Published As

Publication number Publication date
US2919438A (en) 1959-12-29

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