JPS56120953A - Detecting device for rotation - Google Patents
Detecting device for rotationInfo
- Publication number
- JPS56120953A JPS56120953A JP2472380A JP2472380A JPS56120953A JP S56120953 A JPS56120953 A JP S56120953A JP 2472380 A JP2472380 A JP 2472380A JP 2472380 A JP2472380 A JP 2472380A JP S56120953 A JPS56120953 A JP S56120953A
- Authority
- JP
- Japan
- Prior art keywords
- hall
- rotation
- output
- elements
- inputted
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE:To perform control of rotation precisely and correctly by arranging two or more sensitive elements in the vicinity of a rotary plate provided with four senstive bodies along the circumference of a circle and connecting the elements to an addition circuit through a differential circuit. CONSTITUTION:The N pole 4 and the S pole 5 of a magnet 3 are provided alternately at an angular interval of 90 deg. on the circumference of a round plate 2 rotating around a shaft 1. In the vicinity of the round plate 2, two Hall elements and Hall integrating circuits 6 and 7 containing functions of amplification, waveform-shaping, etc. are arranged apart by angle of 90 deg. from each other. When the reverse-phase pulse wave signal thereof is inputted in the differential circuits 8 and 9 and the output signals of the latter are inputted in the addition circuit 10, a signal having twice pulses is obtained at an output terminal 11. In the same way, by increasing the number of units of the Hall integrating circuits 6 and 7, the number of output pulse can be increased. Based on the output thereof, the control of rotation of a machine device can be performed precisely and correctly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2472380A JPS56120953A (en) | 1980-02-29 | 1980-02-29 | Detecting device for rotation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2472380A JPS56120953A (en) | 1980-02-29 | 1980-02-29 | Detecting device for rotation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56120953A true JPS56120953A (en) | 1981-09-22 |
Family
ID=12146071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2472380A Pending JPS56120953A (en) | 1980-02-29 | 1980-02-29 | Detecting device for rotation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56120953A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4450403A (en) * | 1981-03-02 | 1984-05-22 | Siemens Ag | Method and apparatus for determining rotational speed |
JPS63148828U (en) * | 1987-03-20 | 1988-09-30 | ||
FR2653222A1 (en) * | 1989-10-13 | 1991-04-19 | Jaeger | Movement transmitter electrical speed sensor |
JP2008298682A (en) * | 2007-06-01 | 2008-12-11 | Asahi Sunac Corp | Flowmeter |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129258A (en) * | 1975-05-02 | 1976-11-10 | Tdk Corp | Displacement detector |
-
1980
- 1980-02-29 JP JP2472380A patent/JPS56120953A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129258A (en) * | 1975-05-02 | 1976-11-10 | Tdk Corp | Displacement detector |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4450403A (en) * | 1981-03-02 | 1984-05-22 | Siemens Ag | Method and apparatus for determining rotational speed |
JPS63148828U (en) * | 1987-03-20 | 1988-09-30 | ||
FR2653222A1 (en) * | 1989-10-13 | 1991-04-19 | Jaeger | Movement transmitter electrical speed sensor |
JP2008298682A (en) * | 2007-06-01 | 2008-12-11 | Asahi Sunac Corp | Flowmeter |
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