JPS5572845A - Automatic amplitude controller of electric oil pressure servo test equipment - Google Patents

Automatic amplitude controller of electric oil pressure servo test equipment

Info

Publication number
JPS5572845A
JPS5572845A JP14603678A JP14603678A JPS5572845A JP S5572845 A JPS5572845 A JP S5572845A JP 14603678 A JP14603678 A JP 14603678A JP 14603678 A JP14603678 A JP 14603678A JP S5572845 A JPS5572845 A JP S5572845A
Authority
JP
Japan
Prior art keywords
oil pressure
amplitude
pressure servo
control
electric oil
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
JP14603678A
Other languages
Japanese (ja)
Inventor
Kazuto Takahashi
Hiroshi Uno
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.)
Saginomiya Seisakusho Inc
Original Assignee
Saginomiya Seisakusho Inc
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 Saginomiya Seisakusho Inc filed Critical Saginomiya Seisakusho Inc
Priority to JP14603678A priority Critical patent/JPS5572845A/en
Publication of JPS5572845A publication Critical patent/JPS5572845A/en
Pending legal-status Critical Current

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: To control the constant amplitude of an electric oil pressure servo vibration test equipment with high precision without reference to an oscillation frequency, by controlling the amplitude of an original signal through an up-down counter by comparing a set value with a feedback signal peak value.
CONSTITUTION: An exciter is brought under oil pressure servo-control by a control signal from original signal control source 8. The peak value of a feedback signal from the exciter is detected by peak detector 17 and then compared with a set amplitude value by subtracter 15. In accordance with this comparison result, either AND gate 12 or 13 is opened to apply a clock signal to up-down counter 11 in a period equivalent to the subtraction result, so that counter 11 provided down or up- count. Therefore, the amplitude of the original signal is digitally controlled by analog-digital multiplier 10 according to the count result of counter 11 to perform high-precision electric oil pressure servo-control so that the amplitude of the exciter will be constant without reference to a frequency.
COPYRIGHT: (C)1980,JPO&Japio
JP14603678A 1978-11-28 1978-11-28 Automatic amplitude controller of electric oil pressure servo test equipment Pending JPS5572845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14603678A JPS5572845A (en) 1978-11-28 1978-11-28 Automatic amplitude controller of electric oil pressure servo test equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14603678A JPS5572845A (en) 1978-11-28 1978-11-28 Automatic amplitude controller of electric oil pressure servo test equipment

Publications (1)

Publication Number Publication Date
JPS5572845A true JPS5572845A (en) 1980-06-02

Family

ID=15398650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14603678A Pending JPS5572845A (en) 1978-11-28 1978-11-28 Automatic amplitude controller of electric oil pressure servo test equipment

Country Status (1)

Country Link
JP (1) JPS5572845A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141037A (en) * 1983-01-31 1984-08-13 Shimadzu Corp Control apparatus for material testing machine
JPS59178335A (en) * 1983-03-29 1984-10-09 Shimadzu Corp Load control apparatus for testing machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910076A (en) * 1972-05-24 1974-01-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910076A (en) * 1972-05-24 1974-01-29

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141037A (en) * 1983-01-31 1984-08-13 Shimadzu Corp Control apparatus for material testing machine
JPS6341495B2 (en) * 1983-01-31 1988-08-17 Shimadzu Corp
JPS59178335A (en) * 1983-03-29 1984-10-09 Shimadzu Corp Load control apparatus for testing machine
JPS6352693B2 (en) * 1983-03-29 1988-10-19 Shimadzu Corp

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