JPH0375047B2 - - Google Patents

Info

Publication number
JPH0375047B2
JPH0375047B2 JP60211743A JP21174385A JPH0375047B2 JP H0375047 B2 JPH0375047 B2 JP H0375047B2 JP 60211743 A JP60211743 A JP 60211743A JP 21174385 A JP21174385 A JP 21174385A JP H0375047 B2 JPH0375047 B2 JP H0375047B2
Authority
JP
Japan
Prior art keywords
measured
ultrasonic waves
amount
transmitter
transmitted
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
JP60211743A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6270707A (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 JP21174385A priority Critical patent/JPS6270707A/ja
Publication of JPS6270707A publication Critical patent/JPS6270707A/ja
Publication of JPH0375047B2 publication Critical patent/JPH0375047B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
JP21174385A 1985-09-25 1985-09-25 移送途中の被測定物の超音波利用による重層検知装置 Granted JPS6270707A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21174385A JPS6270707A (ja) 1985-09-25 1985-09-25 移送途中の被測定物の超音波利用による重層検知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21174385A JPS6270707A (ja) 1985-09-25 1985-09-25 移送途中の被測定物の超音波利用による重層検知装置

Publications (2)

Publication Number Publication Date
JPS6270707A JPS6270707A (ja) 1987-04-01
JPH0375047B2 true JPH0375047B2 (enExample) 1991-11-28

Family

ID=16610849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21174385A Granted JPS6270707A (ja) 1985-09-25 1985-09-25 移送途中の被測定物の超音波利用による重層検知装置

Country Status (1)

Country Link
JP (1) JPS6270707A (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212130B1 (en) * 1999-03-08 2001-04-03 Scan-Optics, Inc. Method and apparatus for plural document detection
DE19927865B4 (de) † 1999-05-07 2005-12-01 Leuze Electronic Gmbh & Co Kg Vorrichtung zur Detektion von Objekten
JP2002338086A (ja) * 2001-05-11 2002-11-27 Komori Corp 段ボール供給装置の２枚送り検知装置
JP2002338087A (ja) * 2001-05-11 2002-11-27 Komori Corp 段ボール供給装置の２枚送り検知装置
JP2004269241A (ja) * 2003-03-12 2004-09-30 Pfu Ltd 給紙装置
EP2800399A4 (en) * 2011-11-28 2016-02-24 Murata Manufacturing Co PIEZOELECTRIC STACKING ELEMENT AND MULTIFEED DETECTION SENSOR
JP5574050B2 (ja) * 2011-12-06 2014-08-20 株式会社村田製作所 超音波トランスデューサー
CN103959819A (zh) * 2011-12-09 2014-07-30 株式会社村田制作所 超声波换能器以及多重馈送探测用传感器
JP7697351B2 (ja) * 2021-11-12 2025-06-24 セイコーエプソン株式会社 重送検知装置、搬送装置及び画像読取装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL294955A (enExample) * 1962-07-06
US4066969A (en) * 1975-09-22 1978-01-03 Eastman Kodak Company Multiple sheet detecting apparatus
JPS58191911A (ja) * 1982-05-04 1983-11-09 Oki Electric Ind Co Ltd ヘドロ探査機
JPS59178308U (ja) * 1983-04-13 1984-11-29 一ノ宮　武則 睡眠用肩掛け
JPS636644U (enExample) * 1986-06-30 1988-01-18

Also Published As

Publication number Publication date
JPS6270707A (ja) 1987-04-01

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term