GB936757A - Improvements in devices for determining the intensity of radiation sources - Google Patents

Improvements in devices for determining the intensity of radiation sources

Info

Publication number
GB936757A
GB936757A GB1662961A GB1662961A GB936757A GB 936757 A GB936757 A GB 936757A GB 1662961 A GB1662961 A GB 1662961A GB 1662961 A GB1662961 A GB 1662961A GB 936757 A GB936757 A GB 936757A
Authority
GB
United Kingdom
Prior art keywords
radiation
intensity
axlebox
optical system
temperature
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
GB1662961A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB936757A publication Critical patent/GB936757A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/04—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
    • B61K9/06—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault by detecting or indicating heat radiation from overheated axles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/04—Electrothermal relays wherein the thermally-sensitive member is only heated directly

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radiation Pyrometers (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

936,757. Temperature determination. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 8, 1961 [May 11, 1960], No. 16629/61. Class 40 (3). A device for measuring the intensity of a radiation source moving across its field of view, and more particularly a hot axlebox detector, comprises two radiation sources 2, 3, connected in opposition and associated with a single optical system in such a way that two successive output pulses are obtained when a source passes the device. The optical system may be a concave reflector 4 and radiation from a hot axle box 1 moving in a direction 6 results in a first output pulse from one detector followed by a second pulse of opposite polarity from the other. The peak-to-peak amplitude is a measure of axlebox temperature and a device 5 indicates when the temperature exceeds a permissible value. A numerical count of signals may also be made. Variations in background radiation affect both detectors similarly and are substantially cancelled out.
GB1662961A 1960-05-11 1961-05-08 Improvements in devices for determining the intensity of radiation sources Expired GB936757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL251460 1960-05-11

Publications (1)

Publication Number Publication Date
GB936757A true GB936757A (en) 1963-09-11

Family

ID=19752336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1662961A Expired GB936757A (en) 1960-05-11 1961-05-08 Improvements in devices for determining the intensity of radiation sources

Country Status (3)

Country Link
DE (1) DE1899886U (en)
GB (1) GB936757A (en)
NL (2) NL251460A (en)

Also Published As

Publication number Publication date
NL103744C (en)
NL251460A (en)
DE1899886U (en) 1964-09-03

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