JPH0175808U - - Google Patents

Info

Publication number
JPH0175808U
JPH0175808U JP1987171450U JP17145087U JPH0175808U JP H0175808 U JPH0175808 U JP H0175808U JP 1987171450 U JP1987171450 U JP 1987171450U JP 17145087 U JP17145087 U JP 17145087U JP H0175808 U JPH0175808 U JP H0175808U
Authority
JP
Japan
Prior art keywords
hammer
piezoelectric element
air cylinder
frequency band
utility
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
Application number
JP1987171450U
Other languages
English (en)
Japanese (ja)
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 JP1987171450U priority Critical patent/JPH0175808U/ja
Publication of JPH0175808U publication Critical patent/JPH0175808U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
JP1987171450U 1987-11-10 1987-11-10 Pending JPH0175808U (2)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987171450U JPH0175808U (2) 1987-11-10 1987-11-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987171450U JPH0175808U (2) 1987-11-10 1987-11-10

Publications (1)

Publication Number Publication Date
JPH0175808U true JPH0175808U (2) 1989-05-23

Family

ID=31463291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987171450U Pending JPH0175808U (2) 1987-11-10 1987-11-10

Country Status (1)

Country Link
JP (1) JPH0175808U (2)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175952A (en) * 1981-04-24 1982-10-29 Kyoei Giken:Kk Non-destructive test device of non-metallic object by impulsive elastic wave
JPS62225905A (ja) * 1986-03-27 1987-10-03 Chuo Denshi Kogyo Kk 厚み測定方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175952A (en) * 1981-04-24 1982-10-29 Kyoei Giken:Kk Non-destructive test device of non-metallic object by impulsive elastic wave
JPS62225905A (ja) * 1986-03-27 1987-10-03 Chuo Denshi Kogyo Kk 厚み測定方法

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