JPS5430076A - Fine variation meter of impedance - Google Patents

Fine variation meter of impedance

Info

Publication number
JPS5430076A
JPS5430076A JP9591477A JP9591477A JPS5430076A JP S5430076 A JPS5430076 A JP S5430076A JP 9591477 A JP9591477 A JP 9591477A JP 9591477 A JP9591477 A JP 9591477A JP S5430076 A JPS5430076 A JP S5430076A
Authority
JP
Japan
Prior art keywords
temperature
impedance
fine variation
variation meter
detecting
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.)
Pending
Application number
JP9591477A
Other languages
Japanese (ja)
Inventor
Cho Nakamura
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP9591477A priority Critical patent/JPS5430076A/en
Publication of JPS5430076A publication Critical patent/JPS5430076A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE: To compensate the temperature variation of a detecting coil to measure the fine variations such as temperature or external diameter by detecting the temperature of a detecting coil with the use of a temperature sensitive element and by converting the detected temperature into a voltage with the use of a converter so that the output may be used as means for compensating the meter body.
COPYRIGHT: (C)1979,JPO&Japio
JP9591477A 1977-08-10 1977-08-10 Fine variation meter of impedance Pending JPS5430076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9591477A JPS5430076A (en) 1977-08-10 1977-08-10 Fine variation meter of impedance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9591477A JPS5430076A (en) 1977-08-10 1977-08-10 Fine variation meter of impedance

Publications (1)

Publication Number Publication Date
JPS5430076A true JPS5430076A (en) 1979-03-06

Family

ID=14150541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9591477A Pending JPS5430076A (en) 1977-08-10 1977-08-10 Fine variation meter of impedance

Country Status (1)

Country Link
JP (1) JPS5430076A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017522539A (en) * 2014-05-15 2017-08-10 クアルコム，インコーポレイテッド System, method and apparatus for foreign object detection loop based on inductive heat sensing
US10302795B2 (en) 2014-12-30 2019-05-28 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space
US10324215B2 (en) 2014-12-30 2019-06-18 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017522539A (en) * 2014-05-15 2017-08-10 クアルコム，インコーポレイテッド System, method and apparatus for foreign object detection loop based on inductive heat sensing
US10302795B2 (en) 2014-12-30 2019-05-28 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space
US10324215B2 (en) 2014-12-30 2019-06-18 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space
US10670764B2 (en) 2014-12-30 2020-06-02 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space
US10739487B2 (en) 2014-12-30 2020-08-11 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space
US11378711B2 (en) 2014-12-30 2022-07-05 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space
US11719847B2 (en) 2014-12-30 2023-08-08 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space

Similar Documents

Publication Publication Date Title
JPS53131081A (en) Thermometer
JPS5430076A (en) Fine variation meter of impedance
JPS5230456A (en) Physical quantity measuring device
JPS5687816A (en) Pressure or displacement sensor
JPS5242167A (en) Semiconductor pressure gauge
JPS51120242A (en) Fiber diameter measuring instrument
JPS52131489A (en) Photoelectric converter
JPS5349485A (en) Apparatus for measuring temperature of rotor
JPS5366257A (en) Measuring instrument for fluid
JPS5324883A (en) Vicker's hardness tester
JPS5229777A (en) Small-size measuring instrument
JPS51150362A (en) Discharge meter
JPS549674A (en) Digital resistant meter
JPS55131736A (en) Temperature measuring device
JPS533262A (en) Radiation thickness meter
JPS522459A (en) Balance
JPS53114689A (en) Semiconductor strain gauge type diaphragm
JPS5333691A (en) Measurement of alternating current corrosion
JPS5277769A (en) Rate measuring device
JPS535608A (en) Hunting characteristic measurement device
JPS522470A (en) Circuit gauge
JPS522458A (en) Weight measuring instrument
JPS5414683A (en) Measuring circuit for turn-off time
JPS53125771A (en) Measuring unit for semiconductor
JPS5421523A (en) Axial displacement detector for transformer winding