JPH0315135B2 - - Google Patents

Info

Publication number
JPH0315135B2
JPH0315135B2 JP59120042A JP12004284A JPH0315135B2 JP H0315135 B2 JPH0315135 B2 JP H0315135B2 JP 59120042 A JP59120042 A JP 59120042A JP 12004284 A JP12004284 A JP 12004284A JP H0315135 B2 JPH0315135 B2 JP H0315135B2
Authority
JP
Japan
Prior art keywords
oscillator
time
frequency
ultrasonic
oscillation frequency
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
JP59120042A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61722A (ja
Inventor
Yukio Nakagawa
Yasuo Matsuda
Gunji Oogawara
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP59120042A priority Critical patent/JPS61722A/ja
Publication of JPS61722A publication Critical patent/JPS61722A/ja
Publication of JPH0315135B2 publication Critical patent/JPH0315135B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H5/00—Measuring propagation velocity of ultrasonic, sonic or infrasonic waves, e.g. of pressure waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP59120042A 1984-06-13 1984-06-13 超音波伝播時間測定装置 Granted JPS61722A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59120042A JPS61722A (ja) 1984-06-13 1984-06-13 超音波伝播時間測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59120042A JPS61722A (ja) 1984-06-13 1984-06-13 超音波伝播時間測定装置

Publications (2)

Publication Number Publication Date
JPS61722A JPS61722A (ja) 1986-01-06
JPH0315135B2 true JPH0315135B2 (cs) 1991-02-28

Family

ID=14776456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59120042A Granted JPS61722A (ja) 1984-06-13 1984-06-13 超音波伝播時間測定装置

Country Status (1)

Country Link
JP (1) JPS61722A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0795657B2 (ja) * 1987-09-09 1995-10-11 日産自動車株式会社 保護機能内蔵型ｍｏｓｆｅｔ

Also Published As

Publication number Publication date
JPS61722A (ja) 1986-01-06

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