JPS5635064A - Detecting method of direction of rotation for canned motor pump - Google Patents
Detecting method of direction of rotation for canned motor pumpInfo
- Publication number
- JPS5635064A JPS5635064A JP10973579A JP10973579A JPS5635064A JP S5635064 A JPS5635064 A JP S5635064A JP 10973579 A JP10973579 A JP 10973579A JP 10973579 A JP10973579 A JP 10973579A JP S5635064 A JPS5635064 A JP S5635064A
- Authority
- JP
- Japan
- Prior art keywords
- rotation
- motor
- voltage
- detecting method
- motor pump
- 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
Abstract
PURPOSE: To detect the direction of rotation in the motor, by locating the two or more search coils or Hall elements in the rotating magnetic field of motor and detecting the direction of rotation from the vector sum of AC voltage induced in them.
CONSTITUTION: The search coil 1 or Hall element is fixed to the fixed iron core 2 of a motor with interval of 90 electric angle. The induced voltage vectors Eα, Eβ are input to the detection circuit 4 to obtain the vector sum and the voltage is indicated with the voltmeter 5. When the motor runs forward, the indication value is 2E (where: E is the absolute value of the vectors Eα, Eβ) and when reverse, the sum is 0. Thus, the direction of rotation can be detected with this indication.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10973579A JPS5635064A (en) | 1979-08-30 | 1979-08-30 | Detecting method of direction of rotation for canned motor pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10973579A JPS5635064A (en) | 1979-08-30 | 1979-08-30 | Detecting method of direction of rotation for canned motor pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5635064A true JPS5635064A (en) | 1981-04-07 |
Family
ID=14517909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10973579A Pending JPS5635064A (en) | 1979-08-30 | 1979-08-30 | Detecting method of direction of rotation for canned motor pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5635064A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2420679A1 (en) | 2010-08-19 | 2012-02-22 | ABB Oy | Method, arrangement and a computer program product for determining correct running direction a fluid flow generating apparatus |
-
1979
- 1979-08-30 JP JP10973579A patent/JPS5635064A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2420679A1 (en) | 2010-08-19 | 2012-02-22 | ABB Oy | Method, arrangement and a computer program product for determining correct running direction a fluid flow generating apparatus |
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