JPS642905B2 - - Google Patents

Info

Publication number
JPS642905B2
JPS642905B2 JP7923983A JP7923983A JPS642905B2 JP S642905 B2 JPS642905 B2 JP S642905B2 JP 7923983 A JP7923983 A JP 7923983A JP 7923983 A JP7923983 A JP 7923983A JP S642905 B2 JPS642905 B2 JP S642905B2
Authority
JP
Japan
Prior art keywords
pulse
output
circuit
time
clock
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
JP7923983A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59204788A (ja
Inventor
Yukiji Morita
Masafumi Yoshida
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.)
Kaijo Denki Co Ltd
Original Assignee
Kaijo Denki 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 Kaijo Denki Co Ltd filed Critical Kaijo Denki Co Ltd
Priority to JP7923983A priority Critical patent/JPS59204788A/ja
Publication of JPS59204788A publication Critical patent/JPS59204788A/ja
Publication of JPS642905B2 publication Critical patent/JPS642905B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP7923983A 1983-05-09 1983-05-09 超音波の伝播時間測定装置 Granted JPS59204788A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7923983A JPS59204788A (ja) 1983-05-09 1983-05-09 超音波の伝播時間測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7923983A JPS59204788A (ja) 1983-05-09 1983-05-09 超音波の伝播時間測定装置

Publications (2)

Publication Number Publication Date
JPS59204788A JPS59204788A (ja) 1984-11-20
JPS642905B2 true JPS642905B2 (fr) 1989-01-19

Family

ID=13684305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7923983A Granted JPS59204788A (ja) 1983-05-09 1983-05-09 超音波の伝播時間測定装置

Country Status (1)

Country Link
JP (1) JPS59204788A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6271888A (ja) * 1985-09-25 1987-04-02 Yokogawa Electric Corp 時間幅計測装置
JPS62144088A (ja) * 1985-12-18 1987-06-27 Yokogawa Electric Corp 時間計測装置
JPS62288597A (ja) * 1986-06-06 1987-12-15 Yokogawa Electric Corp 時間計測装置
JPS63289482A (ja) * 1987-05-21 1988-11-25 Yokogawa Electric Corp 端数時間測定装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49105568A (fr) * 1973-02-08 1974-10-05
JPS5139159A (en) * 1974-09-30 1976-04-01 Nippon Kokan Kk Kijuntaisekikan oshoshita ryuryokeikenteisochi
JPS524794A (en) * 1975-06-30 1977-01-14 Taiyo Musen Kk Time interval automatic measuring unit
JPS52135776A (en) * 1976-05-08 1977-11-14 Takeda Riken Ind Co Ltd Pulse width measuring device

Also Published As

Publication number Publication date
JPS59204788A (ja) 1984-11-20

Similar Documents

Publication Publication Date Title
EP0177557B1 (fr) Appareil de comptage et procede d'echantillonnage de frequence
JP2859514B2 (ja) ドップラーシフト補正パルス式漁網深度計
JP2002340642A (ja) 超音波流速計
CN109579950B (zh) 一种气体超声波流量计的防错波检测装置
JP3196254B2 (ja) 微小時間計測方法及び微小時間計測装置
JPS642905B2 (fr)
CN203037849U (zh) 一种超声波测厚仪
US4685075A (en) Apparatus for measuring propagation time of ultrasonic waves
JPH07181249A (ja) 超音波距離測定装置
JPH0561571B2 (fr)
JP2559237Y2 (ja) シリアルデータサンプリング信号発生装置
JPH0477855B2 (fr)
JP4278171B1 (ja) 超音波流量計及び流量測定方法
JPH029718B2 (fr)
CN118330312B (zh) 一种fpga晶振频率测量方法及系统
CA1065043A (fr) Recepteur de signaux de telemesure
JPH023476B2 (fr)
JP3124990B2 (ja) 計測値−周波数変換装置
JPH1028110A (ja) 位相差測定回路
JP3824043B2 (ja) エンコーダシステム
JPH05323054A (ja) 微小時間計測装置
JP2000252829A (ja) Σδａｄ変換器及びこれを用いた流量流速測定装置
JPS6339659Y2 (fr)
JPH10132927A (ja) 時間計測回路
JPH0629752Y2 (ja) 計数回路