JPS6227891Y2 - - Google Patents

Info

Publication number
JPS6227891Y2
JPS6227891Y2 JP4614381U JP4614381U JPS6227891Y2 JP S6227891 Y2 JPS6227891 Y2 JP S6227891Y2 JP 4614381 U JP4614381 U JP 4614381U JP 4614381 U JP4614381 U JP 4614381U JP S6227891 Y2 JPS6227891 Y2 JP S6227891Y2
Authority
JP
Japan
Prior art keywords
recording
signal
recorder
dynamic range
gain amplification
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
JP4614381U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57159179U (en]
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 filed Critical
Priority to JP4614381U priority Critical patent/JPS6227891Y2/ja
Publication of JPS57159179U publication Critical patent/JPS57159179U/ja
Application granted granted Critical
Publication of JPS6227891Y2 publication Critical patent/JPS6227891Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP4614381U 1981-03-30 1981-03-30 Expired JPS6227891Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4614381U JPS6227891Y2 (en]) 1981-03-30 1981-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4614381U JPS6227891Y2 (en]) 1981-03-30 1981-03-30

Publications (2)

Publication Number Publication Date
JPS57159179U JPS57159179U (en]) 1982-10-06
JPS6227891Y2 true JPS6227891Y2 (en]) 1987-07-17

Family

ID=29843000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4614381U Expired JPS6227891Y2 (en]) 1981-03-30 1981-03-30

Country Status (1)

Country Link
JP (1) JPS6227891Y2 (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1201797A (en) * 1983-01-20 1986-03-11 Frederick H.K. Rambow Circuit for controlling the magnitude of amplification of signals produced by a borehole televiewer
JP2000329859A (ja) * 1999-05-17 2000-11-30 Sekisui Chem Co Ltd 探査装置

Also Published As

Publication number Publication date
JPS57159179U (en]) 1982-10-06

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