GB1379775A - Monitoring apparatus - Google Patents

Monitoring apparatus

Info

Publication number
GB1379775A
GB1379775A GB2637472A GB2637472A GB1379775A GB 1379775 A GB1379775 A GB 1379775A GB 2637472 A GB2637472 A GB 2637472A GB 2637472 A GB2637472 A GB 2637472A GB 1379775 A GB1379775 A GB 1379775A
Authority
GB
United Kingdom
Prior art keywords
radiation
detectors
june
cooled
wavelength range
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
GB2637472A
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.)
Individual
Original Assignee
Individual
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 DE19702031971 external-priority patent/DE2031971C3/en
Application filed by Individual filed Critical Individual
Publication of GB1379775A publication Critical patent/GB1379775A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G01S3/784—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using a mosaic of detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/781—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Radiation Pyrometers (AREA)
  • Light Receiving Elements (AREA)

Abstract

1379775 Direction finding; television G PUSCH 6 June 1972 [18 June 1971] 26374/72 Addition to 1355975 Headings H4D and H4F In the infra-red radiation monitoring apparatus claimed in Specification 1,355,975, the detectors are made only sensitive to radiation in the wavelength range of 3-4 Ám. Preferably the detection bandwidth is 50 to 300 nm. In the above wavelength range it is found that natural and reflected radiation from the natural surroundings, e.g. snow, brickwalls, concrete, grass &c. is at a minimum, such that the difference between levels of the radiation to be detected and that from the surroundings is at a maximum. Further protection against interference from the sun is provided by a narrow acceptance window. Detectors of lead sulphide cooled to 77‹ K. or cadmium-mercury-telluride cooled to 200‹ K. give improved detection.
GB2637472A 1970-06-29 1972-06-06 Monitoring apparatus Expired GB1379775A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702031971 DE2031971C3 (en) 1970-06-29 1970-06-29 Device for monitoring a larger air space
DE19712130038 DE2130038C3 (en) 1970-06-29 1971-06-18 Device for monitoring the air space for infrared and laser beams

Publications (1)

Publication Number Publication Date
GB1379775A true GB1379775A (en) 1975-01-08

Family

ID=25759347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2637472A Expired GB1379775A (en) 1970-06-29 1972-06-06 Monitoring apparatus

Country Status (2)

Country Link
DE (1) DE2130038C3 (en)
GB (1) GB1379775A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643261C (en) * 1934-06-19 1937-04-02 Machinerieeen En App N Fabriek Glass lens plate for light signals
US3144554A (en) * 1959-10-01 1964-08-11 Bunker Ramo Radiant energy detection system for suppressing the effects of ambient background radiation
FR1286798A (en) * 1961-01-25 1962-03-09 Trt Telecom Radio Electr Optical device for increasing the field of a telescope
GB1156323A (en) * 1965-06-23 1969-06-25 Smiths Industries Ltd Improvements in or relating to Sonar Apparatus

Also Published As

Publication number Publication date
DE2130038B2 (en) 1979-07-05
DE2130038C3 (en) 1982-09-23
DE2130038A1 (en) 1973-01-04

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee