JPS55162064A - Digital tachometer - Google Patents
Digital tachometerInfo
- 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
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
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)
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 |
-
1979
- 1979-06-05 JP JP7076879A patent/JPS55162064A/en active Pending
Cited By (3)
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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