JPS5255571A - Resonance frequency measuring apparatus - Google Patents

Resonance frequency measuring apparatus

Info

Publication number
JPS5255571A
JPS5255571A JP50130843A JP13084375A JPS5255571A JP S5255571 A JPS5255571 A JP S5255571A JP 50130843 A JP50130843 A JP 50130843A JP 13084375 A JP13084375 A JP 13084375A JP S5255571 A JPS5255571 A JP S5255571A
Authority
JP
Japan
Prior art keywords
resonance frequency
measuring apparatus
frequency measuring
frequency
frequencies
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
JP50130843A
Other languages
Japanese (ja)
Inventor
Toshio Kasai
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP50130843A priority Critical patent/JPS5255571A/en
Publication of JPS5255571A publication Critical patent/JPS5255571A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

PURPOSE: To read resonance frequencies by chaging frequencies with saw tooth signals for controlling and electrically assessing the frequency through the use of the peak value of the current that flows when the output frequency and the resonance frequency of an objected to be measured coincide.
COPYRIGHT: (C)1977,JPO&Japio
JP50130843A 1975-10-30 1975-10-30 Resonance frequency measuring apparatus Pending JPS5255571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50130843A JPS5255571A (en) 1975-10-30 1975-10-30 Resonance frequency measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50130843A JPS5255571A (en) 1975-10-30 1975-10-30 Resonance frequency measuring apparatus

Publications (1)

Publication Number Publication Date
JPS5255571A true JPS5255571A (en) 1977-05-07

Family

ID=15043985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50130843A Pending JPS5255571A (en) 1975-10-30 1975-10-30 Resonance frequency measuring apparatus

Country Status (1)

Country Link
JP (1) JPS5255571A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779461A (en) * 1980-11-06 1982-05-18 Hitachi Ltd Automatic measuring device for inductance
JPH032572A (en) * 1989-05-30 1991-01-08 Toko Inc Measuring device and method for tuning frequency of coil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432752A (en) * 1965-07-29 1969-03-11 North American Rockwell Resonant frequency measurement apparatus having a gated frequency indicating means
US3541447A (en) * 1967-12-12 1970-11-17 Automated Measurements Corp Comparator and digital delay system for determining the time interval between two selected amplitude levels of a test waveform

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432752A (en) * 1965-07-29 1969-03-11 North American Rockwell Resonant frequency measurement apparatus having a gated frequency indicating means
US3541447A (en) * 1967-12-12 1970-11-17 Automated Measurements Corp Comparator and digital delay system for determining the time interval between two selected amplitude levels of a test waveform

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779461A (en) * 1980-11-06 1982-05-18 Hitachi Ltd Automatic measuring device for inductance
JPH032572A (en) * 1989-05-30 1991-01-08 Toko Inc Measuring device and method for tuning frequency of coil

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