JPS57201556A - Controller for centrifuge - Google Patents

Controller for centrifuge

Info

Publication number
JPS57201556A
JPS57201556A JP8518281A JP8518281A JPS57201556A JP S57201556 A JPS57201556 A JP S57201556A JP 8518281 A JP8518281 A JP 8518281A JP 8518281 A JP8518281 A JP 8518281A JP S57201556 A JPS57201556 A JP S57201556A
Authority
JP
Japan
Prior art keywords
circuit
signal
signals
outputs
circuits
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.)
Granted
Application number
JP8518281A
Other languages
Japanese (ja)
Other versions
JPS6358628B2 (en
Inventor
Kazuyoshi Sekizawa
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki 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 Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP8518281A priority Critical patent/JPS57201556A/en
Publication of JPS57201556A publication Critical patent/JPS57201556A/en
Publication of JPS6358628B2 publication Critical patent/JPS6358628B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To control a centrifuge always satisfactorily by prohibiting the inputting of the signals corresponding to measured quatities as a control input signal when said signals change transiently by the effect of electrical noises.
CONSTITUTION: A synchronous signal generating circuit 6 generates a synchronous signal (e) synchronized with the frequency of an electric power source and differentiating circuits 13W15 generte differentiation signals and applies a differentiation signal (d) to a strobe generating circuit 17 via an OR gate 16 when driving signals (a)W(c) change. The circuit 17 is reset by the signal (d) and when the two clock signals (e) are applied thereto, it is set. When the circuit 17 is reset, the output signal (f) thereof prohibits detecting circuits 21W23 to receive the outputs of respectively corresponding detectors 18W20. When the circuit 17 is set, said circuits receive said outputs in accordance with the output signal (f) of that time. Therefore, when any of a motor 2, a vacuum pump 3, a cooler and a heater 4 starts, the outputs of the respective detectors are not inputted to the control circuit during one cycle of the power source frequency 1.
COPYRIGHT: (C)1982,JPO&Japio
JP8518281A 1981-06-02 1981-06-02 Controller for centrifuge Granted JPS57201556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8518281A JPS57201556A (en) 1981-06-02 1981-06-02 Controller for centrifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8518281A JPS57201556A (en) 1981-06-02 1981-06-02 Controller for centrifuge

Publications (2)

Publication Number Publication Date
JPS57201556A true JPS57201556A (en) 1982-12-10
JPS6358628B2 JPS6358628B2 (en) 1988-11-16

Family

ID=13851510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8518281A Granted JPS57201556A (en) 1981-06-02 1981-06-02 Controller for centrifuge

Country Status (1)

Country Link
JP (1) JPS57201556A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005230746A (en) * 2004-02-20 2005-09-02 Hitachi Koki Co Ltd Centrifugal separator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005230746A (en) * 2004-02-20 2005-09-02 Hitachi Koki Co Ltd Centrifugal separator

Also Published As

Publication number Publication date
JPS6358628B2 (en) 1988-11-16

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