JPS5364568A - Detecting method for variation - Google Patents

Detecting method for variation

Info

Publication number
JPS5364568A
JPS5364568A JP13947476A JP13947476A JPS5364568A JP S5364568 A JPS5364568 A JP S5364568A JP 13947476 A JP13947476 A JP 13947476A JP 13947476 A JP13947476 A JP 13947476A JP S5364568 A JPS5364568 A JP S5364568A
Authority
JP
Japan
Prior art keywords
variation
detecting method
emasured
certian
integrating
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
JP13947476A
Other languages
Japanese (ja)
Other versions
JPS6024428B2 (en
Inventor
Shunji Mori
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP51139474A priority Critical patent/JPS6024428B2/en
Publication of JPS5364568A publication Critical patent/JPS5364568A/en
Publication of JPS6024428B2 publication Critical patent/JPS6024428B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To detect the variation of the process quantity, etc., by integrating the difference between the instantaneous value of the emasured quantity at a certian time and the subsequent measured quantity.
COPYRIGHT: (C)1978,JPO&Japio
JP51139474A 1976-11-22 1976-11-22 Change amount detection method and device Expired JPS6024428B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51139474A JPS6024428B2 (en) 1976-11-22 1976-11-22 Change amount detection method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51139474A JPS6024428B2 (en) 1976-11-22 1976-11-22 Change amount detection method and device

Publications (2)

Publication Number Publication Date
JPS5364568A true JPS5364568A (en) 1978-06-09
JPS6024428B2 JPS6024428B2 (en) 1985-06-12

Family

ID=15246077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51139474A Expired JPS6024428B2 (en) 1976-11-22 1976-11-22 Change amount detection method and device

Country Status (1)

Country Link
JP (1) JPS6024428B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190660B2 (en) 2002-03-18 2007-03-13 Mitsubishi Denki Kabushiki Kaisha Method of manufacturing optical pickup device and optical pickup device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190660B2 (en) 2002-03-18 2007-03-13 Mitsubishi Denki Kabushiki Kaisha Method of manufacturing optical pickup device and optical pickup device

Also Published As

Publication number Publication date
JPS6024428B2 (en) 1985-06-12

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