FIELD: technology for measuring angular speed by means of electric or magnetic means, possible use for measuring absolute sliding of asynchronous engine (primarily, hermetic electric pump).
SUBSTANCE: device has indicator in form of inductiveness coil and electric filter while indicator is positioned in space between frontal portion of stator winding and rotor winding, on the surface of rotor shaft at least one exiting element is made in form of a recess, meant for altering magnetic flow through inductiveness coil when feeding electric energy to stator winding and rotating aforementioned shaft, and electric filter of measuring device is made in form of active filter for top frequencies.
EFFECT: increased power of signal, carrying information about value of frequency of rotor rotation, expanded frequency range of signal, carrying information about sliding frequency.
1 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR MEASURING ASYNCHRONOUS MOTOR SLIP | 0 |
|
SU1035524A1 |
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|
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|
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| TRACTION INDUCTION MOTOR CONTROL DEVICE | 1995 |
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| DEVICE FOR MEASURING SLIDING ASYNCHRONOUS MOTORS WITH SHORT-CIRCUIT ROTOR | 2005 |
|
RU2299442C1 |
