JPH0350988B2 - - Google Patents

Info

Publication number
JPH0350988B2
JPH0350988B2 JP58186389A JP18638983A JPH0350988B2 JP H0350988 B2 JPH0350988 B2 JP H0350988B2 JP 58186389 A JP58186389 A JP 58186389A JP 18638983 A JP18638983 A JP 18638983A JP H0350988 B2 JPH0350988 B2 JP H0350988B2
Authority
JP
Japan
Prior art keywords
output
gate
comparator
circuit
sawtooth wave
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 - Lifetime
Application number
JP58186389A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6078344A (ja
Inventor
Takeshi Kanegae
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.)
Tokyo Keiki Inc
Original Assignee
Tokyo Keiki 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 Tokyo Keiki Co Ltd filed Critical Tokyo Keiki Co Ltd
Priority to JP58186389A priority Critical patent/JPS6078344A/ja
Publication of JPS6078344A publication Critical patent/JPS6078344A/ja
Publication of JPH0350988B2 publication Critical patent/JPH0350988B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
JP58186389A 1983-10-05 1983-10-05 超音波探傷器のゲ−ト回路 Granted JPS6078344A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58186389A JPS6078344A (ja) 1983-10-05 1983-10-05 超音波探傷器のゲ−ト回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58186389A JPS6078344A (ja) 1983-10-05 1983-10-05 超音波探傷器のゲ−ト回路

Publications (2)

Publication Number Publication Date
JPS6078344A JPS6078344A (ja) 1985-05-04
JPH0350988B2 true JPH0350988B2 (enrdf_load_stackoverflow) 1991-08-05

Family

ID=16187534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58186389A Granted JPS6078344A (ja) 1983-10-05 1983-10-05 超音波探傷器のゲ−ト回路

Country Status (1)

Country Link
JP (1) JPS6078344A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5723791A (en) 1993-09-28 1998-03-03 Defelsko Corporation High resolution ultrasonic coating thickness gauge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55131765A (en) * 1979-03-30 1980-10-13 Sumitomo Metal Ind Ltd Ultrasonic flaw detector for welded part
JPS5740657A (en) * 1980-08-25 1982-03-06 Hitachi Denshi Ltd Window comparator

Also Published As

Publication number Publication date
JPS6078344A (ja) 1985-05-04

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