JPS55162064A - Digital tachometer - Google Patents

Digital tachometer

Info

Publication number
JPS55162064A
JPS55162064A JP7076879A JP7076879A JPS55162064A JP S55162064 A JPS55162064 A JP S55162064A JP 7076879 A JP7076879 A JP 7076879A JP 7076879 A JP7076879 A JP 7076879A JP S55162064 A JPS55162064 A JP S55162064A
Authority
JP
Japan
Prior art keywords
tachometer
digital
analog
counted
rotor
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
JP7076879A
Other languages
Japanese (ja)
Inventor
Shuhei Iwade
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 Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7076879A priority Critical patent/JPS55162064A/en
Publication of JPS55162064A publication Critical patent/JPS55162064A/en
Pending legal-status Critical Current

Links

Landscapes

  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To ensure the easier readout than the digital type as well as secure the more accurate display than the analog type respectively for the tachometer, by displaying the electric pulse sent from the rotor by means of the light emitting diode or the like and via the digital circuit.
CONSTITUTION: For the electric pulse generated from the rotor, the input pulses are counted by synchronous counter 21 and in the fixed standard time. The data thus counted is analyzed by decoder 22 and then displayed to several light emitting diodes or the like which are arranged in an analog way. Thus the digital display is changed into the analog way, and as a result the rotational frequency can be read out more easily than the digital tachometer along with a higher accuracy secured than the analog tachometer using the voltmeter. Such tachometer can be applied effectively especially in case the rotational frequency changes at all times as the time elapses.
COPYRIGHT: (C)1980,JPO&Japio
JP7076879A 1979-06-05 1979-06-05 Digital tachometer Pending JPS55162064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7076879A JPS55162064A (en) 1979-06-05 1979-06-05 Digital tachometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7076879A JPS55162064A (en) 1979-06-05 1979-06-05 Digital tachometer

Publications (1)

Publication Number Publication Date
JPS55162064A true JPS55162064A (en) 1980-12-17

Family

ID=13441017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7076879A Pending JPS55162064A (en) 1979-06-05 1979-06-05 Digital tachometer

Country Status (1)

Country Link
JP (1) JPS55162064A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188996U (en) * 1986-05-20 1987-12-01
WO2017046966A1 (en) * 2015-09-18 2017-03-23 株式会社安川電機 Device for displaying state of industrial machine, and power converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188996U (en) * 1986-05-20 1987-12-01
WO2017046966A1 (en) * 2015-09-18 2017-03-23 株式会社安川電機 Device for displaying state of industrial machine, and power converter
US10135379B2 (en) 2015-09-18 2018-11-20 Kabushiki Kaisha Yaskawa Denki State display device of industrial machinery and power conversion device

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