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JPS5540932A - Digital revolution meter - Google Patents

Digital revolution meter

Info

Publication number
JPS5540932A
JPS5540932A JP11384178A JP11384178A JPS5540932A JP S5540932 A JPS5540932 A JP S5540932A JP 11384178 A JP11384178 A JP 11384178A JP 11384178 A JP11384178 A JP 11384178A JP S5540932 A JPS5540932 A JP S5540932A
Authority
JP
Japan
Prior art keywords
pulse
circuit
measuring
output
counters
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
JP11384178A
Other languages
Japanese (ja)
Inventor
Yoji Yamada
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.)
SHINPO INDUSTRIAL CO Ltd
Shinpo Kogyo KK
Original Assignee
SHINPO INDUSTRIAL CO Ltd
Shinpo Kogyo KK
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 SHINPO INDUSTRIAL CO Ltd, Shinpo Kogyo KK filed Critical SHINPO INDUSTRIAL CO Ltd
Priority to JP11384178A priority Critical patent/JPS5540932A/en
Publication of JPS5540932A publication Critical patent/JPS5540932A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To perform high accuracy measurement and renewal of display in the revolving speed with shorter period, by counting the measuring pulse and reference pluse while the first measuring pulse is made, after a given time elapsed and one measuring pulse is made.
CONSTITUTION: After resetting the counters 5 and 8 and timing circuit 17 with the reset signal R from the operation processing circuit 15, the output E is made from the circuit 17 with the leading of the measuring pulses PS from the photo detection circuit 4 to set the counters 5 and 8 and the both pulses of measurement and reference after that are counted. The reference pulse PM is inputted to the circuit 17, and time of about 0.5 second is made by measuring it, the output E is fallen with the leading of the first pulse after the time elapsed, and when it is finished, each pulse after that is not counted. Further, the output E is inputted to also the circuit 15, and this avoid to fetch the output of the counters 5 and 8 while H level. Accordingly, highly accurate measurement and renewal of display of revolving speed in a short period can be made.
COPYRIGHT: (C)1980,JPO&Japio
JP11384178A 1978-09-16 1978-09-16 Digital revolution meter Pending JPS5540932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11384178A JPS5540932A (en) 1978-09-16 1978-09-16 Digital revolution meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11384178A JPS5540932A (en) 1978-09-16 1978-09-16 Digital revolution meter

Publications (1)

Publication Number Publication Date
JPS5540932A true JPS5540932A (en) 1980-03-22

Family

ID=14622386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11384178A Pending JPS5540932A (en) 1978-09-16 1978-09-16 Digital revolution meter

Country Status (1)

Country Link
JP (1) JPS5540932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929722U (en) * 1982-08-17 1984-02-24 愛知時計電機株式会社 Electronic flow meter with instantaneous flow rate display
JPS61126627A (en) * 1984-11-26 1986-06-14 Hitachi Ltd Magnetic recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929722U (en) * 1982-08-17 1984-02-24 愛知時計電機株式会社 Electronic flow meter with instantaneous flow rate display
JPS61126627A (en) * 1984-11-26 1986-06-14 Hitachi Ltd Magnetic recording medium
JPH0533456B2 (en) * 1984-11-26 1993-05-19 Hitachi Ltd

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