JPS5566204A - Magnetic floatation controller - Google Patents
Magnetic floatation controllerInfo
- Publication number
- JPS5566204A JPS5566204A JP13751278A JP13751278A JPS5566204A JP S5566204 A JPS5566204 A JP S5566204A JP 13751278 A JP13751278 A JP 13751278A JP 13751278 A JP13751278 A JP 13751278A JP S5566204 A JPS5566204 A JP S5566204A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- electromagnet
- void length
- displacement meter
- output
- 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
- 239000011800 void material Substances 0.000 abstract 5
- 238000006073 displacement reaction Methods 0.000 abstract 4
- 230000004069 differentiation Effects 0.000 abstract 2
- 239000003302 ferromagnetic material Substances 0.000 abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
Landscapes
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
PURPOSE: To stably control void length between a ferromagnetic material and an electromagnet by simple constitution, by comparing the output signals of a displacement meter and the signals of a void length set instrument, by secondarily differentiating the output of the displacement meter and by feeding the value back to the signals.
CONSTITUTION: A displacement meter 4 is mounted to a DC electromagnet 2 oppositely arranged to a ferromagnetic mateiral 1, and generates signals proportional to void length between the ferromagnetic material 1 and the electromagnet 2. The signals are compared with the set value of a void length set instrument 5, and supplied to an adder 10 through a series compensating circuit 6. Meanwhile, the signals of the displacement meter 4 are secondarily differentiated through differentiation circuits 11, 12 in series, primarily differentiated through a differentiation circuit 13 and each fed to adders 10, 14, and the output is power-amplified to control an exciting coil 2b of the electromagnet 2. Thus, void length can be controlled constantly and stably by simple constitution without using an expensive accelerometer, etc.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13751278A JPS5566204A (en) | 1978-11-08 | 1978-11-08 | Magnetic floatation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13751278A JPS5566204A (en) | 1978-11-08 | 1978-11-08 | Magnetic floatation controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5566204A true JPS5566204A (en) | 1980-05-19 |
Family
ID=15200392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13751278A Pending JPS5566204A (en) | 1978-11-08 | 1978-11-08 | Magnetic floatation controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5566204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5720010A (en) * | 1995-08-22 | 1998-02-17 | Ebara Corporation | Control system for a linear actuator including magnetic bearings for levitating a robot arm |
-
1978
- 1978-11-08 JP JP13751278A patent/JPS5566204A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5720010A (en) * | 1995-08-22 | 1998-02-17 | Ebara Corporation | Control system for a linear actuator including magnetic bearings for levitating a robot arm |
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