ULTRASOUND GENERATOR Russian patent published in 2008 - IPC B06B1/08 

FIELD: invention refers to arrangements for receiving oscillations of ultrasound spectrum.

SUBSTANCE: technical result of invention is increase of output power at its smooth regulation and provision of possibility of work of generator in regimes of impulse radiation with regulated meaning of period and coefficient of filling (on-off time ratio) of impulses modulating carrier frequency equal to resonance frequency of magnetic striction radiator. Ultrasound generator has magnetic striction radiator 1, whose excitation winding 2 is in-series connected with condenser 3 and control scheme 4. Generator has in-series introduced first rectifier 5, first inverter 6, controlled from first pulse-duration modulated controller 7, impulse step-up transformer 8, second rectifier 9, second inverter 10, controlled from second pulse-duration modulated controller 11. Control scheme has winding of acoustic feedback coupling 12, located on separate core of magnetic frictional radiator 1, regimes switch 13, carrier frequency regulator 14, regulator of frequency of modulated impulses 15, regulator of on-off time ratio 16 and phases regulator 17.

EFFECT: increase output power of generator.

1 dwg