JPS57123418A - Controller of exciter - Google Patents

Controller of exciter

Info

Publication number
JPS57123418A
JPS57123418A JP896881A JP896881A JPS57123418A JP S57123418 A JPS57123418 A JP S57123418A JP 896881 A JP896881 A JP 896881A JP 896881 A JP896881 A JP 896881A JP S57123418 A JPS57123418 A JP S57123418A
Authority
JP
Japan
Prior art keywords
reference value
output
edc
signal
switch
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
JP896881A
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 JP896881A priority Critical patent/JPS57123418A/en
Publication of JPS57123418A publication Critical patent/JPS57123418A/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 the sudden fluctuation of an exciter, by switching plural static load items that control an actuator so as to set the deviation between the control target value and the feedback detection value at zero at a time point when the deviation signal is at zero. CONSTITUTION:When a displacement feedback selection signal S(a) is supplied, an up-down counter 16a works until coincidence is obtained between the output EDC(a) of a static reference value setting part 15a and a displacement feedback signal EFB(a). Then a comparator 18a delivers an output with a D/A conversion 17a, and the couter 16a discontinues its counting with the count value held as it is. A reference value setting part 15b of the load also delivers a reference value signal EDC(b). The signals EDC(a)-(b) are added in the adverse polarity with the signals EFB(a)-(b) through an analog adders 22a and 22b to be connected to an electronic switch 23. The output of the switch 23 is added with the output EAC of a dynamic reference value setter 8 to be supplied to a servo valve 10. A switch part 24 is switched by the triggering of static reference value setting parts 15a and 15b. In such way, the sudden fluctuation due to the switching can be avoided to prevent a breakdown.
JP896881A 1981-01-26 1981-01-26 Controller of exciter Pending JPS57123418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP896881A JPS57123418A (en) 1981-01-26 1981-01-26 Controller of exciter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP896881A JPS57123418A (en) 1981-01-26 1981-01-26 Controller of exciter

Publications (1)

Publication Number Publication Date
JPS57123418A true JPS57123418A (en) 1982-07-31

Family

ID=11707476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP896881A Pending JPS57123418A (en) 1981-01-26 1981-01-26 Controller of exciter

Country Status (1)

Country Link
JP (1) JPS57123418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122444A (en) * 1981-09-22 1983-07-21 ザ・パ−キン−エルマ−・コ−ポレイシヨン Device for thermo-mechanical analysis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122444A (en) * 1981-09-22 1983-07-21 ザ・パ−キン−エルマ−・コ−ポレイシヨン Device for thermo-mechanical analysis
JPH0256621B2 (en) * 1981-09-22 1990-11-30 Perkin Elmer Corp

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