GB2488481A - Temperature measuring apparatus - Google Patents

Temperature measuring apparatus Download PDF

Info

Publication number
GB2488481A
GB2488481A GB1209916.4A GB201209916A GB2488481A GB 2488481 A GB2488481 A GB 2488481A GB 201209916 A GB201209916 A GB 201209916A GB 2488481 A GB2488481 A GB 2488481A
Authority
GB
United Kingdom
Prior art keywords
temperature sensor
shutter
temperature
open
optical tube
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.)
Withdrawn
Application number
GB1209916.4A
Other versions
GB201209916D0 (en
Inventor
Timothy Kenneth Barry
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.)
Calex Electronics Ltd
Original Assignee
Calex Electronics 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
Priority claimed from GB0921456A external-priority patent/GB2476040A/en
Application filed by Calex Electronics Ltd filed Critical Calex Electronics Ltd
Publication of GB201209916D0 publication Critical patent/GB201209916D0/en
Publication of GB2488481A publication Critical patent/GB2488481A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01J5/02—Constructional details
    • G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
    • 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
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
    • G01J5/14—Electrical features thereof
    • G01J5/16—Arrangements with respect to the cold junction; Compensating influence of ambient temperature or other variables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

Apparatus for measuring the temperature of an object comprises an optical tube, a first temperature sensor located at a closed end of the optical tube, a lens located at an open end of the optical tube and arranged to focus radiation from the object onto the first temperature sensor, a shutter located at the open end of the optical tube, the shutter having an open position allowing radiation from the object to reach the first temperature sensor and a closed position preventing radiation from the object reaching the first temperature sensor, a second temperature sensor located on the shutter, a third temperature sensor for measuring the substrate temperature of the first temperature sensor, a control device arranged to open and close the shutter, and a processing device connected to the first temperature sensor, the second temperature sensor, the third temperature sensor and the control device. The processing device is arranged to take first measurements from the first, second and third temperature sensors when the shutter is in its closed position, calculate an offset value from these measurements, open the shutter, take a second measurement from the first temperature sensor, and calculate the temperature of the object from the second measurement, the substrate temperature and the offset value.
GB1209916.4A 2009-12-08 2010-12-08 Temperature measuring apparatus Withdrawn GB2488481A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0921456A GB2476040A (en) 2009-12-08 2009-12-08 Temperature measuring apparatus with shutter to enable removal of measurement errors
PCT/GB2010/002242 WO2011070319A1 (en) 2009-12-08 2010-12-08 Temperature measuring apparatus

Publications (2)

Publication Number Publication Date
GB201209916D0 GB201209916D0 (en) 2012-07-18
GB2488481A true GB2488481A (en) 2012-08-29

Family

ID=46582423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1209916.4A Withdrawn GB2488481A (en) 2009-12-08 2010-12-08 Temperature measuring apparatus

Country Status (1)

Country Link
GB (1) GB2488481A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837600A2 (en) * 1996-10-15 1998-04-22 Nippon Avionics Co., Ltd. Infrared sensor device with temperature correction function
US20080210872A1 (en) * 2003-08-11 2008-09-04 Opgal Ltd. Radiometry Using an Uncooled Microbolometer Detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837600A2 (en) * 1996-10-15 1998-04-22 Nippon Avionics Co., Ltd. Infrared sensor device with temperature correction function
US20080210872A1 (en) * 2003-08-11 2008-09-04 Opgal Ltd. Radiometry Using an Uncooled Microbolometer Detector

Also Published As

Publication number Publication date
GB201209916D0 (en) 2012-07-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)