| 摘要 |
The proposed piezomagnetic tachometer contains a rotor with a permanent magnet, a stator with a piezoelectric element, an amplifier, and a pulse counter. The piezoelectric element contains two electrodes. To the piezoelectric element, a magnetized plate is fixed that interacts with the permanent magnet of the rotor. The permanent magnet is designed as a cylinder with a cut on one of the end surfaces. The electrodes are inserted in the input circuit of the amplifier. The output of the amplifier is connected to the input of the counter.
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