JPS57123419A - Limiter device of exciter - Google Patents

Limiter device of exciter

Info

Publication number
JPS57123419A
JPS57123419A JP896981A JP896981A JPS57123419A JP S57123419 A JPS57123419 A JP S57123419A JP 896981 A JP896981 A JP 896981A JP 896981 A JP896981 A JP 896981A JP S57123419 A JPS57123419 A JP S57123419A
Authority
JP
Japan
Prior art keywords
comparators
values
exciter
value
conversions
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
JP896981A
Other languages
Japanese (ja)
Inventor
Takeshi Shiina
Hirokuni Taki
Kazuo Kabane
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP896981A priority Critical patent/JPS57123419A/en
Publication of JPS57123419A publication Critical patent/JPS57123419A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To avoid a breakdown of a limiter device of an exciter, by giving an urgent, stop to the exciter when the difference between the feedback signal obtained by detecting the actual amplitude and the peak value that detects and holds both the maximum value Dp and the minimum value Dv exceeds the threshold level. CONSTITUTION:When a limiter ON command 12 is given, gates 23 and 33 are opened via FFs 23 and 32. Then counters 21 and 31 count clocks 11 and give A/D conversions 24 and 34. When the values P and V of the conversions 24 and 34 are set at values Dp and Dv that peak holding circuits 29 and 39 have, comparators 25 and 35 deliver the output. Then the counters 21 and 31 discontinue the counting to hold the values Dp and Dv of that moment. The comparators 15-18 are 3-input comparators. The comparators 15-16 supply the values P and Dp; and the comparators 17-18 supply not only the values V and Dv but also the allowable fluctuation width S. These comparators deliver the output when Dp>P+S, Dv>V+S:Dp<P-S, Dv<V-S are satisfied. Thus an or circuit 19 is driven, and an urgent stop signal 10 is delivered to control a hydraulic pressure source. As a result, only the setting of the value S suffices to perform the measurement with high efficiency.
JP896981A 1981-01-26 1981-01-26 Limiter device of exciter Pending JPS57123419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP896981A JPS57123419A (en) 1981-01-26 1981-01-26 Limiter device of exciter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP896981A JPS57123419A (en) 1981-01-26 1981-01-26 Limiter device of exciter

Publications (1)

Publication Number Publication Date
JPS57123419A true JPS57123419A (en) 1982-07-31

Family

ID=11707505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP896981A Pending JPS57123419A (en) 1981-01-26 1981-01-26 Limiter device of exciter

Country Status (1)

Country Link
JP (1) JPS57123419A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341751U (en) * 1986-09-03 1988-03-18
JPH0382411U (en) * 1989-12-08 1991-08-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341751U (en) * 1986-09-03 1988-03-18
JPH0382411U (en) * 1989-12-08 1991-08-22

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