JPS5255571A - Resonance frequency measuring apparatus - Google Patents
Resonance frequency measuring apparatusInfo
- 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
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
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)
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)
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 |
-
1975
- 1975-10-30 JP JP50130843A patent/JPS5255571A/en active Pending
Patent Citations (2)
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)
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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