GB1442802A - Temperature measurement using liquid crystals - Google Patents

Temperature measurement using liquid crystals

Info

Publication number
GB1442802A
GB1442802A GB797073A GB797073A GB1442802A GB 1442802 A GB1442802 A GB 1442802A GB 797073 A GB797073 A GB 797073A GB 797073 A GB797073 A GB 797073A GB 1442802 A GB1442802 A GB 1442802A
Authority
GB
United Kingdom
Prior art keywords
temperature measurement
liquid crystals
crystals
liquid
measurement
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
GB797073A
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Priority to GB797073A priority Critical patent/GB1442802A/en
Publication of GB1442802A publication Critical patent/GB1442802A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
    • G01K11/165—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials of organic liquid crystals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB797073A 1973-02-19 1973-02-19 Temperature measurement using liquid crystals Expired GB1442802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB797073A GB1442802A (en) 1973-02-19 1973-02-19 Temperature measurement using liquid crystals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB797073A GB1442802A (en) 1973-02-19 1973-02-19 Temperature measurement using liquid crystals

Publications (1)

Publication Number Publication Date
GB1442802A true GB1442802A (en) 1976-07-14

Family

ID=9843283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB797073A Expired GB1442802A (en) 1973-02-19 1973-02-19 Temperature measurement using liquid crystals

Country Status (1)

Country Link
GB (1) GB1442802A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031870A2 (en) * 1979-12-13 1981-07-15 Lothar Schilf Device for measuring very small temperature differences over micrometric distances
GB2163566A (en) * 1984-08-21 1986-02-26 British Aerospace Thermal imagers
GB2171534A (en) * 1985-01-07 1986-08-28 Robillard Jean J A Infrared imaging system
GB2217011A (en) * 1988-02-23 1989-10-18 Secr Defence Surface temperature mapping using liquid crystal materials
US4917476A (en) * 1985-06-21 1990-04-17 British Aerospace Public Limited Company Thermal imagers using liquid crystal sensing elements
WO2012009317A1 (en) * 2010-07-12 2012-01-19 International Business Machines Corporation Thermally sensitive material embedded in the substrate

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031870A2 (en) * 1979-12-13 1981-07-15 Lothar Schilf Device for measuring very small temperature differences over micrometric distances
EP0031870A3 (en) * 1979-12-13 1983-05-18 Lothar Schilf Device for measuring very small temperature differences over micrometric distances
US4390275A (en) * 1979-12-13 1983-06-28 Erno-Raumfahrttechnik Gmbh Measuring minute, local temperature differences
GB2163566A (en) * 1984-08-21 1986-02-26 British Aerospace Thermal imagers
GB2171534A (en) * 1985-01-07 1986-08-28 Robillard Jean J A Infrared imaging system
US4751387A (en) * 1985-01-07 1988-06-14 Richard L. Scully Infrared imaging system and method
USRE33914E (en) * 1985-01-07 1992-05-05 Richard L. Scully Infrared imaging system and method
US4917476A (en) * 1985-06-21 1990-04-17 British Aerospace Public Limited Company Thermal imagers using liquid crystal sensing elements
GB2217011A (en) * 1988-02-23 1989-10-18 Secr Defence Surface temperature mapping using liquid crystal materials
WO2012009317A1 (en) * 2010-07-12 2012-01-19 International Business Machines Corporation Thermally sensitive material embedded in the substrate

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee