CONTROL UNIT OF ELECTROMAGNETIC VIBRATOR Russian patent published in 1994 - IPC

FIELD: vibration engineering. SUBSTANCE: unit has electromagnetic vibrator 7 shunted with diode 8 and connected with constant-voltage source, phase discriminator 2, master oscillator 1, differential amplifier 12, integrating network 10, 11, two-level comparators 3, 13 and keys 5,6 and 14. The unit ensures the automatic frequency control of the master oscillator to the frequency resonance of the mechanical system and the amplitude stabilization of mechanical vibrations. EFFECT: simpler design and enhanced convenience of exploitation. 2 dwg