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JPS56157802A - Shape detector - Google Patents

Shape detector

Info

Publication number
JPS56157802A
JPS56157802A JP6056180A JP6056180A JPS56157802A JP S56157802 A JPS56157802 A JP S56157802A JP 6056180 A JP6056180 A JP 6056180A JP 6056180 A JP6056180 A JP 6056180A JP S56157802 A JPS56157802 A JP S56157802A
Authority
JP
Japan
Prior art keywords
detecting
stress
rolling
voltages
width
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
JP6056180A
Inventor
Shuichi Hirasaki
Kazuhiro Hirohata
Susumu Ito
Tadashi Kanetani
Original Assignee
Hitachi Ltd
Kawasaki Steel Corp
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 Hitachi Ltd, Kawasaki Steel Corp filed Critical Hitachi Ltd
Priority to JP6056180A priority Critical patent/JPS56157802A/en
Publication of JPS56157802A publication Critical patent/JPS56157802A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To permit a distortion detection with high accuracy by providing at least one unit for detecting the stress in the width and rolling directions midway in the width direction, and arranging a plurality of units for detecting the stress in the rolling diretion in parallel in the width direction.
CONSTITUTION: A detecting unit 20 for the width and rolling directions comprising an exciting coil 1, U-shaped cores 7 and 8 and detecting coils 2 and 3 is arranged in the center, and on both sides thereof, a plurality of detecting units 30a... for the rolling direction are provided each comprising an exciting coil 15, a U-shaped core 14 and a detecting coil 16. When a steel plate passes with a gap between the end of each core, the voltages of the detecting coils 2, 3, 16, 18... vary according to the wavy distortion resulting from the unvenness of the internal stress. Said output voltages are rectified by means of rectifiers 21a, 21b, 31a.... The differences E20, E30a, E30b... between them and the DC voltage of the detecting coil 3 are the stress detecting voltages of the respective detecting units. The output voltage in the normal condition is previously balanced by means of the variable resistor of each rectifier circuit. Thereby, a distortion detection of high accuracy is made possible.
COPYRIGHT: (C)1981,JPO&Japio
JP6056180A 1980-05-09 1980-05-09 Shape detector Pending JPS56157802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6056180A JPS56157802A (en) 1980-05-09 1980-05-09 Shape detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6056180A JPS56157802A (en) 1980-05-09 1980-05-09 Shape detector

Publications (1)

Publication Number Publication Date
JPS56157802A true JPS56157802A (en) 1981-12-05

Family

ID=13145796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6056180A Pending JPS56157802A (en) 1980-05-09 1980-05-09 Shape detector

Country Status (1)

Country Link
JP (1) JPS56157802A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031572A1 (en) * 1997-01-17 1998-07-23 Automotive Systems Laboratory, Inc. Vehicle door edge movement sensor system
US6317048B1 (en) 1999-09-16 2001-11-13 Automotive Systems Laboratory, Inc. Magnetic field sensor
US6407660B1 (en) 1999-08-26 2002-06-18 Automotive Systems Laboratory, Inc. Magnetic sensor
US6433688B1 (en) 1999-08-26 2002-08-13 Automotive Systems Laboratory, Inc. Magnetic sensor
US6583616B1 (en) 1999-08-26 2003-06-24 Automotive Systems Laboratory, Inc. Magnetic sensor
US6586926B1 (en) 1999-08-26 2003-07-01 Automotive Systems Laboratory, Inc. Magnetic sensor
US6587048B1 (en) 1999-08-26 2003-07-01 Automotive Systems Laboratory, Inc. Magnetic sensor
US6631776B1 (en) 1999-08-26 2003-10-14 Automotive Systems Laboratory, Inc. Magnetic sensor
US6777927B1 (en) 1999-08-26 2004-08-17 Automotive Systems Laboratory, Inc. Magnetic sensor
US7113874B2 (en) 2003-09-19 2006-09-26 Automotive Systems Laboratory, Inc. Magnetic crash sensing method
US7190161B2 (en) 1999-08-26 2007-03-13 Automotive Systems Laboratory, Inc. Magnetic sensor
US7209844B2 (en) 2003-09-19 2007-04-24 Automotive Systems Laboratory, Inc. Magnetic crash sensor
US7212895B2 (en) 2003-12-21 2007-05-01 Automotive Systems Laboratory, Inc. Magnetic sensor
US7463987B2 (en) 2003-09-19 2008-12-09 Takata Holdings, Inc. Magnetic sensing system and method
US7514917B2 (en) 2003-09-19 2009-04-07 Automotive Systems Laboratory, Inc. Magnetic crash sensor
US7772839B2 (en) 2003-09-19 2010-08-10 Tk Holdings, Inc. Eddy current magnetic crash sensor
US7839142B2 (en) 2003-09-19 2010-11-23 Tk Holdings, Inc. Magnetic crash sensor
US7839143B2 (en) 2003-09-19 2010-11-23 Tk Holdings Inc. Eddy current magnetic crash sensor
US8180585B2 (en) 1999-08-26 2012-05-15 Tk Holdings, Inc. Magnetic crash sensor

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031572A1 (en) * 1997-01-17 1998-07-23 Automotive Systems Laboratory, Inc. Vehicle door edge movement sensor system
US7190161B2 (en) 1999-08-26 2007-03-13 Automotive Systems Laboratory, Inc. Magnetic sensor
US6407660B1 (en) 1999-08-26 2002-06-18 Automotive Systems Laboratory, Inc. Magnetic sensor
US6433688B1 (en) 1999-08-26 2002-08-13 Automotive Systems Laboratory, Inc. Magnetic sensor
US6583616B1 (en) 1999-08-26 2003-06-24 Automotive Systems Laboratory, Inc. Magnetic sensor
US6586926B1 (en) 1999-08-26 2003-07-01 Automotive Systems Laboratory, Inc. Magnetic sensor
US6587048B1 (en) 1999-08-26 2003-07-01 Automotive Systems Laboratory, Inc. Magnetic sensor
US6631776B1 (en) 1999-08-26 2003-10-14 Automotive Systems Laboratory, Inc. Magnetic sensor
US6777927B1 (en) 1999-08-26 2004-08-17 Automotive Systems Laboratory, Inc. Magnetic sensor
US8180585B2 (en) 1999-08-26 2012-05-15 Tk Holdings, Inc. Magnetic crash sensor
US6317048B1 (en) 1999-09-16 2001-11-13 Automotive Systems Laboratory, Inc. Magnetic field sensor
US7209844B2 (en) 2003-09-19 2007-04-24 Automotive Systems Laboratory, Inc. Magnetic crash sensor
US7113874B2 (en) 2003-09-19 2006-09-26 Automotive Systems Laboratory, Inc. Magnetic crash sensing method
US7463987B2 (en) 2003-09-19 2008-12-09 Takata Holdings, Inc. Magnetic sensing system and method
US7514917B2 (en) 2003-09-19 2009-04-07 Automotive Systems Laboratory, Inc. Magnetic crash sensor
US7772839B2 (en) 2003-09-19 2010-08-10 Tk Holdings, Inc. Eddy current magnetic crash sensor
US7839142B2 (en) 2003-09-19 2010-11-23 Tk Holdings, Inc. Magnetic crash sensor
US7839143B2 (en) 2003-09-19 2010-11-23 Tk Holdings Inc. Eddy current magnetic crash sensor
US7212895B2 (en) 2003-12-21 2007-05-01 Automotive Systems Laboratory, Inc. Magnetic sensor

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