JPS5570729A - Failure detector for machine - Google Patents

Failure detector for machine

Info

Publication number
JPS5570729A
JPS5570729A JP14589178A JP14589178A JPS5570729A JP S5570729 A JPS5570729 A JP S5570729A JP 14589178 A JP14589178 A JP 14589178A JP 14589178 A JP14589178 A JP 14589178A JP S5570729 A JPS5570729 A JP S5570729A
Authority
JP
Japan
Prior art keywords
measurement
reference value
signal
passes
measuring period
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
JP14589178A
Other languages
Japanese (ja)
Inventor
Yasushi Matsumoto
Juichi Maruyama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14589178A priority Critical patent/JPS5570729A/en
Publication of JPS5570729A publication Critical patent/JPS5570729A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Forging (AREA)

Abstract

PURPOSE: To make unnecessary the adjustment accompanied with the alteration of measuring period, by automatically correcting the reference value corresponding to the measuring period signal and compared with the measuring signal.
CONSTITUTION: The measurement of acceleration detector 3 is started with the measurement start signal produced when the fixed metal piece 6 to the upper metal mold 4 passes down in front of the proximity switch 7, and the measurement is finished with the measurement end signal produced when the upper metal mold 4 passes through the dead point and the metal piece 6 passes up in front of the proximity switch 7. The gate circuit 11 is open between the measurement start signal and the measurement end signal and the pulse train from the pulse generator 10 is introduced to the counter 12. The reference value correction circuit 13 outputs the reference value corresponding to the measuring period automatically corrected by taking the content of the counter 12 as input. The measurement signal of the acceleration detector 3 and the reference value are compared at the comparison detector 14 to detect failure of machines. Thus, detection can be made independently of the alteration of the operation speed.
COPYRIGHT: (C)1980,JPO&Japio
JP14589178A 1978-11-22 1978-11-22 Failure detector for machine Pending JPS5570729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14589178A JPS5570729A (en) 1978-11-22 1978-11-22 Failure detector for machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14589178A JPS5570729A (en) 1978-11-22 1978-11-22 Failure detector for machine

Publications (1)

Publication Number Publication Date
JPS5570729A true JPS5570729A (en) 1980-05-28

Family

ID=15395431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14589178A Pending JPS5570729A (en) 1978-11-22 1978-11-22 Failure detector for machine

Country Status (1)

Country Link
JP (1) JPS5570729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013118656A1 (en) * 2012-02-08 2013-08-15 株式会社メタルリンクス Dynamic displacement-measuring device and coordination device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013118656A1 (en) * 2012-02-08 2013-08-15 株式会社メタルリンクス Dynamic displacement-measuring device and coordination device
JP5520422B2 (en) * 2012-02-08 2014-06-11 株式会社メタルリンクス Dynamic displacement measuring device and linkage device

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