GB1213157A - Devices for measuring mechanical or physical parameters - Google Patents

Devices for measuring mechanical or physical parameters

Info

Publication number
GB1213157A
GB1213157A GB4581/69A GB458169A GB1213157A GB 1213157 A GB1213157 A GB 1213157A GB 4581/69 A GB4581/69 A GB 4581/69A GB 458169 A GB458169 A GB 458169A GB 1213157 A GB1213157 A GB 1213157A
Authority
GB
United Kingdom
Prior art keywords
whisker
transducer
physical parameters
jan
aluminium
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
GB4581/69A
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1213157A publication Critical patent/GB1213157A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/048—Carbon or carbides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Pressure Sensors (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Thermistors And Varistors (AREA)

Abstract

1,213,157. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 Jan., 1969 [31 Jan., 1968], No. 4581/69. Heading H1K. A transducer measures mechanical or physical parameters by their effect on the electrical resistance of a whisker of silicon carbide which forms the transducer element. This whisker is grown by recrystallization and/or condensation in a space bounded by silicon carbide in a protective gas atmosphere in the presence of lanthanum, or by the vapour-liquid-solid mechanism with iron in the liquid phase. The whisker is doped with aluminium or boron, and is provided with ohmic contacts of tungsten, or a gold alloy containing tantalum or tantalum and aluminium. Various embodiments of the transducer are described for measuring gas pressure, tensile stress, gas flow rate, temperature, electromagnetic radiation or liquid level in a container.
GB4581/69A 1968-01-31 1969-01-28 Devices for measuring mechanical or physical parameters Expired GB1213157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6801382A NL6801382A (en) 1968-01-31 1968-01-31

Publications (1)

Publication Number Publication Date
GB1213157A true GB1213157A (en) 1970-11-18

Family

ID=19802637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4581/69A Expired GB1213157A (en) 1968-01-31 1969-01-28 Devices for measuring mechanical or physical parameters

Country Status (6)

Country Link
CH (1) CH503261A (en)
DE (1) DE1903038A1 (en)
ES (1) ES163426Y (en)
FR (1) FR2001021A1 (en)
GB (1) GB1213157A (en)
NL (1) NL6801382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358436A2 (en) * 1988-09-07 1990-03-14 Sogo Keibi Hosho Kabushiki Kaisha Infrared detection element
CN106048728A (en) * 2016-06-28 2016-10-26 山东天岳晶体材料有限公司 Method for growing high-quality silicon carbide whiskers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3344879A1 (en) * 1983-12-12 1985-06-13 Lothar 2940 Wilhelmshaven Sabrowsky Level-limiting value transmitter for liquid containers or the like
EP0419718B1 (en) * 1989-09-29 1994-03-02 Nippon Carbon Co., Ltd. Infrared detective element
DE4306228A1 (en) * 1993-02-27 1994-09-01 Abb Patent Gmbh Flue gas filter arrangement for dusts and gaseous pollutants

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358436A2 (en) * 1988-09-07 1990-03-14 Sogo Keibi Hosho Kabushiki Kaisha Infrared detection element
EP0358436A3 (en) * 1988-09-07 1991-05-29 Sogo Keibi Hosho Kabushiki Kaisha Infrared detection element
CN106048728A (en) * 2016-06-28 2016-10-26 山东天岳晶体材料有限公司 Method for growing high-quality silicon carbide whiskers

Also Published As

Publication number Publication date
FR2001021A1 (en) 1969-09-19
NL6801382A (en) 1969-08-04
ES163426U (en) 1971-03-01
DE1903038A1 (en) 1969-08-28
ES163426Y (en) 1971-09-01
CH503261A (en) 1971-02-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees