JPS5540363A - Oil hydraulic control device - Google Patents

Oil hydraulic control device

Info

Publication number
JPS5540363A
JPS5540363A JP11443978A JP11443978A JPS5540363A JP S5540363 A JPS5540363 A JP S5540363A JP 11443978 A JP11443978 A JP 11443978A JP 11443978 A JP11443978 A JP 11443978A JP S5540363 A JPS5540363 A JP S5540363A
Authority
JP
Japan
Prior art keywords
servo valve
servo
amplifier
linearizer
subtractor
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
JP11443978A
Other languages
Japanese (ja)
Inventor
Koji Kuwabara
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP11443978A priority Critical patent/JPS5540363A/en
Publication of JPS5540363A publication Critical patent/JPS5540363A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To reduce distortation of acceleration wave-form by compensating non- linearity in a servo valve with such a construction as providing a linearizer between servo valve and servo amplifier.
CONSTITUTION: Between a servo valve 3 and a servo amplifier 2 is provided a linearizer, in which the characteristics of a servo valve 4 are measured previously by a subtractor 18, a generator for constant 19, a potentiometer 20, adder 21, multiplier 22, and a square root extractor 16 on the basis of the pressure at oil pressure source, the differential pressure at actuator, and the input amperage to servo valve and the servo valve flow-in factor, which is a function of input signal to servo valve, shall be calculated with a non-linear floded-line function generator 14, which is adjusted in such a way that it can reproduce those characteristics mentional above, and further the flow rate presumed through the above procedure is emitted from a multiplier 15, and finally the output from the servo amplifier 2 is subtrated by this presumed flow rate at an adder and subtractor 11 to be amplified by an amplifier 12,. Thus non-linearity in a servo valve can be compensated and distortion of acceleration wave-form can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP11443978A 1978-09-18 1978-09-18 Oil hydraulic control device Pending JPS5540363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11443978A JPS5540363A (en) 1978-09-18 1978-09-18 Oil hydraulic control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11443978A JPS5540363A (en) 1978-09-18 1978-09-18 Oil hydraulic control device

Publications (1)

Publication Number Publication Date
JPS5540363A true JPS5540363A (en) 1980-03-21

Family

ID=14637753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11443978A Pending JPS5540363A (en) 1978-09-18 1978-09-18 Oil hydraulic control device

Country Status (1)

Country Link
JP (1) JPS5540363A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067802U (en) * 1983-10-13 1985-05-14 株式会社日研工作所 chuck device
JPS6116203U (en) * 1984-06-29 1986-01-30 大昭和精機株式会社 Check
JPS61117609U (en) * 1984-12-28 1986-07-24
JPS61187608U (en) * 1985-05-17 1986-11-22
JPS634204U (en) * 1986-06-26 1988-01-12
JPS63169205A (en) * 1986-12-29 1988-07-13 N T Tool Kk Holding equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067802U (en) * 1983-10-13 1985-05-14 株式会社日研工作所 chuck device
JPS6116203U (en) * 1984-06-29 1986-01-30 大昭和精機株式会社 Check
JPS61117609U (en) * 1984-12-28 1986-07-24
JPS61187608U (en) * 1985-05-17 1986-11-22
JPS634204U (en) * 1986-06-26 1988-01-12
JPS63169205A (en) * 1986-12-29 1988-07-13 N T Tool Kk Holding equipment

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