JPS5432371A - Rotating speed detector - Google Patents

Rotating speed detector

Info

Publication number
JPS5432371A
JPS5432371A JP9785477A JP9785477A JPS5432371A JP S5432371 A JPS5432371 A JP S5432371A JP 9785477 A JP9785477 A JP 9785477A JP 9785477 A JP9785477 A JP 9785477A JP S5432371 A JPS5432371 A JP S5432371A
Authority
JP
Japan
Prior art keywords
rotating speed
speed detector
pulse
period
highly accurately
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
JP9785477A
Other languages
Japanese (ja)
Inventor
Tsutomu Saitou
Satoshi Sarai
Kazuo Takagi
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 JP9785477A priority Critical patent/JPS5432371A/en
Publication of JPS5432371A publication Critical patent/JPS5432371A/en
Pending legal-status Critical Current

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  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)

Abstract

PURPOSE: To detect rotating speed highly accurately by measuring mean pulse frequencies with the pulse number of the pulse train of a known fixed period smaller than the period of speed detecting pulses.
COPYRIGHT: (C)1979,JPO&Japio
JP9785477A 1977-08-17 1977-08-17 Rotating speed detector Pending JPS5432371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9785477A JPS5432371A (en) 1977-08-17 1977-08-17 Rotating speed detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9785477A JPS5432371A (en) 1977-08-17 1977-08-17 Rotating speed detector

Publications (1)

Publication Number Publication Date
JPS5432371A true JPS5432371A (en) 1979-03-09

Family

ID=14203317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9785477A Pending JPS5432371A (en) 1977-08-17 1977-08-17 Rotating speed detector

Country Status (1)

Country Link
JP (1) JPS5432371A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149464A (en) * 1984-08-30 1985-08-06 Ricoh Co Ltd Printer
JPH01210866A (en) * 1988-02-18 1989-08-24 Toyota Autom Loom Works Ltd Non-contact type speed detecting device
JPH0618538A (en) * 1992-02-05 1994-01-25 Shinko Electric Co Ltd Speed detector
JPH07103993A (en) * 1993-10-04 1995-04-21 Fujitsu Ten Ltd Pulse width measurement device and rotational speed measurement device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149464A (en) * 1984-08-30 1985-08-06 Ricoh Co Ltd Printer
JPH022708B2 (en) * 1984-08-30 1990-01-19 Ricoh Kk
JPH01210866A (en) * 1988-02-18 1989-08-24 Toyota Autom Loom Works Ltd Non-contact type speed detecting device
JPH0618538A (en) * 1992-02-05 1994-01-25 Shinko Electric Co Ltd Speed detector
JPH07103993A (en) * 1993-10-04 1995-04-21 Fujitsu Ten Ltd Pulse width measurement device and rotational speed measurement device

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