JPS6159459B2 - - Google Patents

Info

Publication number
JPS6159459B2
JPS6159459B2 JP53008360A JP836078A JPS6159459B2 JP S6159459 B2 JPS6159459 B2 JP S6159459B2 JP 53008360 A JP53008360 A JP 53008360A JP 836078 A JP836078 A JP 836078A JP S6159459 B2 JPS6159459 B2 JP S6159459B2
Authority
JP
Japan
Prior art keywords
attenuation rate
circuit
product
detection circuit
detects
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
JP53008360A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54102188A (en
Inventor
Juji Sawakuri
Moryasu Harada
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.)
Asahi Tec Corp
Original Assignee
Asahi Malleable Iron 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 Asahi Malleable Iron Co Ltd filed Critical Asahi Malleable Iron Co Ltd
Priority to JP836078A priority Critical patent/JPS54102188A/ja
Publication of JPS54102188A publication Critical patent/JPS54102188A/ja
Publication of JPS6159459B2 publication Critical patent/JPS6159459B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
JP836078A 1978-01-30 1978-01-30 Defective and nonndefective discriminating method of product and its device Granted JPS54102188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP836078A JPS54102188A (en) 1978-01-30 1978-01-30 Defective and nonndefective discriminating method of product and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP836078A JPS54102188A (en) 1978-01-30 1978-01-30 Defective and nonndefective discriminating method of product and its device

Publications (2)

Publication Number Publication Date
JPS54102188A JPS54102188A (en) 1979-08-11
JPS6159459B2 true JPS6159459B2 (en]) 1986-12-16

Family

ID=11691055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP836078A Granted JPS54102188A (en) 1978-01-30 1978-01-30 Defective and nonndefective discriminating method of product and its device

Country Status (1)

Country Link
JP (1) JPS54102188A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0286292U (en]) * 1988-12-23 1990-07-09

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779764U (en]) * 1980-10-31 1982-05-17
JPS60218063A (ja) * 1984-04-13 1985-10-31 Nippon Telegr & Teleph Corp <Ntt> マンホ−ル鉄蓋劣化診断法
JPS60256051A (ja) * 1984-06-01 1985-12-17 Mitsubishi Heavy Ind Ltd 非破壊検査装置
JPH0658351B2 (ja) * 1987-11-27 1994-08-03 鹿島建設株式会社 コンクリート構造物の空洞検知装置
JP2535417B2 (ja) * 1989-08-11 1996-09-18 日本碍子株式会社 不良碍子の検出方法
JP2006250758A (ja) * 2005-03-11 2006-09-21 Tdk Corp 検査方法、検査装置
JP5305023B2 (ja) * 2009-06-15 2013-10-02 パルステック工業株式会社 製品検査装置および製品検査方法
JPWO2015145914A1 (ja) 2014-03-28 2017-04-13 日本電気株式会社 アンカーボルトの診断システム、その方法およびプログラム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0286292U (en]) * 1988-12-23 1990-07-09

Also Published As

Publication number Publication date
JPS54102188A (en) 1979-08-11

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