JPS57203913A - Rotation detector - Google Patents
Rotation detectorInfo
- Publication number
- JPS57203913A JPS57203913A JP8915581A JP8915581A JPS57203913A JP S57203913 A JPS57203913 A JP S57203913A JP 8915581 A JP8915581 A JP 8915581A JP 8915581 A JP8915581 A JP 8915581A JP S57203913 A JPS57203913 A JP S57203913A
- Authority
- JP
- Japan
- Prior art keywords
- rotation
- permanent magnet
- rotating body
- induced
- voltage
- 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
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
PURPOSE:To obtain means to detect the direction of rotation with a rotation detector by recognizing the shape of voltage induction due to rotation of a permanent magnet developed in the coil of a magnetism detection element. CONSTITUTION:A rotating body 1 is rotated with a permanent magnet 2 attached on its outer circumference. With the change in the magnetic flux that is developed by the rotation of the permanent magnet 2, an induction voltage is generated at both ends of a coil 4b by means of an iron core 4a of a magnetic detecting element 4 that is provided on the circumference of a fixed frame 3. Everytime the permanent magnet 2 passes near the element 4 once, a group of +, -, and + voltages are induced. When the rotating body 1 is rotated in the opposite direction, the order of the induced voltages changes to -, +, and - which allows detection of the rotational direction. Further, the number of rotation of the rotating body 1 is counted by counting the frequency of the induced voltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8915581A JPS57203913A (en) | 1981-06-10 | 1981-06-10 | Rotation detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8915581A JPS57203913A (en) | 1981-06-10 | 1981-06-10 | Rotation detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57203913A true JPS57203913A (en) | 1982-12-14 |
Family
ID=13962954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8915581A Pending JPS57203913A (en) | 1981-06-10 | 1981-06-10 | Rotation detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57203913A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5993787A (en) * | 1982-11-20 | 1984-05-30 | Kyokado Eng Co Ltd | Solidification of ground |
JPS5993786A (en) * | 1982-11-20 | 1984-05-30 | Kyokado Eng Co Ltd | Grauting method into ground |
US4719419A (en) * | 1985-07-15 | 1988-01-12 | Harris Graphics Corporation | Apparatus for detecting a rotary position of a shaft |
JPS6453114A (en) * | 1987-08-24 | 1989-03-01 | Mitsubishi Electric Corp | Multiple rotation detecting device |
US5233293A (en) * | 1990-11-17 | 1993-08-03 | August Bilstein Gmbh & Co. Kg | Sensor for measuring the speed and/or position of a piston in relation to that of the cylinder it moves inside of in a dashpot or shock absorber |
KR100851244B1 (en) | 2008-04-10 | 2008-08-08 | (주)한국건설안전진단 | Safety check-up facilities of steel box slab section of bridge |
KR100861315B1 (en) | 2008-04-08 | 2008-10-01 | (주)한국건설안전진단 | Safety diagnosis apparatus of bridge railing |
-
1981
- 1981-06-10 JP JP8915581A patent/JPS57203913A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5993787A (en) * | 1982-11-20 | 1984-05-30 | Kyokado Eng Co Ltd | Solidification of ground |
JPS5993786A (en) * | 1982-11-20 | 1984-05-30 | Kyokado Eng Co Ltd | Grauting method into ground |
JPH0222115B2 (en) * | 1982-11-20 | 1990-05-17 | Kyokado Eng Co | |
US4719419A (en) * | 1985-07-15 | 1988-01-12 | Harris Graphics Corporation | Apparatus for detecting a rotary position of a shaft |
JPS6453114A (en) * | 1987-08-24 | 1989-03-01 | Mitsubishi Electric Corp | Multiple rotation detecting device |
US5233293A (en) * | 1990-11-17 | 1993-08-03 | August Bilstein Gmbh & Co. Kg | Sensor for measuring the speed and/or position of a piston in relation to that of the cylinder it moves inside of in a dashpot or shock absorber |
KR100861315B1 (en) | 2008-04-08 | 2008-10-01 | (주)한국건설안전진단 | Safety diagnosis apparatus of bridge railing |
KR100851244B1 (en) | 2008-04-10 | 2008-08-08 | (주)한국건설안전진단 | Safety check-up facilities of steel box slab section of bridge |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3855525A (en) | Angular velocity sensor | |
JPS6421349A (en) | Overcurrent probe and defect detection overcurrent method | |
US5229715A (en) | Variable reluctance sensor for electromagnetically sensing the rate of movement of an object | |
JPS57203913A (en) | Rotation detector | |
FR2489055B1 (en) | ||
EP0391160B1 (en) | Variable reluctance sensor for detecting the rate of rotary or linear movement | |
JPS5783150A (en) | Commutatorless motor | |
JPS5585249A (en) | Vortex flow detector | |
SE8206803D0 (en) | ELECTROMAGNETIC INDICATOR HAVING A ROTOR DISPOSABLE IN DISCRETE POSITIONS | |
SU838566A1 (en) | Device for monitoring rotational speed | |
GB1493900A (en) | Electromagnetic speed sensor | |
JPS57138856A (en) | Rotor for motor | |
JPS6439532A (en) | Load state detection device for shaft | |
JPS55110913A (en) | Rotating angle detector | |
EP0207907A3 (en) | Gyroscope pick-off | |
JPS55109940A (en) | Method and device for detecting air pressure of tire | |
JPS5534355A (en) | Rotating magnetic head device | |
SU915012A1 (en) | Tachometer | |
SU390382A1 (en) | MAGNETIC ELASTIC TORQUE SENSOR | |
SU108108A1 (en) | Induction logometer | |
JPS5657955A (en) | Revolution detector | |
JPS5729953A (en) | Rotary speed detector | |
JPS648848A (en) | Rotor magnetization for motor with detector | |
GB1477304A (en) | Rotary transducer | |
JPS5588181A (en) | Counter with read device |