JPS5649606A - Sensing method for relative position between car mounted magnet of linear synchronous motor and ground conductor during car it stopped - Google Patents
Sensing method for relative position between car mounted magnet of linear synchronous motor and ground conductor during car it stoppedInfo
- Publication number
- JPS5649606A JPS5649606A JP12404079A JP12404079A JPS5649606A JP S5649606 A JPS5649606 A JP S5649606A JP 12404079 A JP12404079 A JP 12404079A JP 12404079 A JP12404079 A JP 12404079A JP S5649606 A JPS5649606 A JP S5649606A
- Authority
- JP
- Japan
- Prior art keywords
- car
- stopped
- relative position
- sensor
- synchronous motor
- 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.)
- Granted
Links
Landscapes
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
- Control Of Linear Motors (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
PURPOSE: To sense the relative position of a superconductive magnet and a coil at the time of power failure during the car is stopped, by obtaining the amount of displacement of a position sensor on the car from a reference point to the point opposing the sensor on the ground or obtaining a rotating angle whose center is the midpoint of an axial line.
CONSTITUTION: When the power supply for the position sensor or a control device becomes off during the car is stopped, an optical position sensor DC on said car is moved from a reference point in the direction of (a) or (b) by the other power supply. When the sensor DC reaches the point opposing a sensing plate Dg1", the light from the DC is reflected by the Dg1". When said light is received by the DC, the driving of the displacing mechanism is stopped, and the displacement amount ΔX is obtained by a known measuring device. The period lT between the sensing plates Dg1' and Dg1" corresponds to the electric angle of 360°. Therefore, the relative position of the DC and the position Dg1'WDg1" is calculated in a known operating device by using the equation (ΔX/lT)×360°. In this method, the relative position between the superconductive magnet on the car and the coil on the ground at the time of power failure during the car is stopped can be accurately obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54124040A JPS5943885B2 (en) | 1979-09-28 | 1979-09-28 | Method for detecting the relative position of an on-board magnet and a ground conductor in a linear synchronous motor while the vehicle is stopped |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54124040A JPS5943885B2 (en) | 1979-09-28 | 1979-09-28 | Method for detecting the relative position of an on-board magnet and a ground conductor in a linear synchronous motor while the vehicle is stopped |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5649606A true JPS5649606A (en) | 1981-05-06 |
JPS5943885B2 JPS5943885B2 (en) | 1984-10-25 |
Family
ID=14875521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54124040A Expired JPS5943885B2 (en) | 1979-09-28 | 1979-09-28 | Method for detecting the relative position of an on-board magnet and a ground conductor in a linear synchronous motor while the vehicle is stopped |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5943885B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898112A (en) * | 1981-12-08 | 1983-06-10 | Tsuchiya Mfg Co Ltd | Laminate type filter unit made of fluorine-contained resin |
JPH01180211A (en) * | 1988-01-12 | 1989-07-18 | Japan Organo Co Ltd | Solid-liquid separating device using filter cloth |
-
1979
- 1979-09-28 JP JP54124040A patent/JPS5943885B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898112A (en) * | 1981-12-08 | 1983-06-10 | Tsuchiya Mfg Co Ltd | Laminate type filter unit made of fluorine-contained resin |
JPS6328654B2 (en) * | 1981-12-08 | 1988-06-09 | Tsucha Seisakusho Kk | |
JPH01180211A (en) * | 1988-01-12 | 1989-07-18 | Japan Organo Co Ltd | Solid-liquid separating device using filter cloth |
Also Published As
Publication number | Publication date |
---|---|
JPS5943885B2 (en) | 1984-10-25 |
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