Method for oscillating ultrasonic waves and a microcomputer's bu

Details Method for oscillating ultrasonic waves and a microcomputer's bu Method for oscillating ultrasonic waves and a microcomputer's bu

1982-08-27

1985-06-25

Wise, Edward J.

Boots, shoes, and leggings

364508, 73602, G06F 1520

Patent

active

045257906

ABSTRACT:
A method for oscillating ultrasonic waves and a microcomputer's built-in ultrasonic wave oscillator circuitry being capable of tracking and regulating ultrasonic wave vibrations automatically to be oscillated stably at a resonant frequency of a vibrator. An amplified excitation signal, having a necessary oscillating frequency regulated and amplified in accordance with an input adjusting voltage value signal, is output from an operating unit section. A high-frequency wave current value signal, flowing through a vibrator, after the amplified excitation signal is introduced, is issued from a vibration system to a conversion-transmission section. The adjusting voltage value signal and the high-frequency wave current value signal are converted and then transmitted to the operating unit section, and a microcomputer, respectively. The microcomputer monitors changes in the resonant frequency of the vibrator by always detecting a peak high-frequency wave current value signal flowing through the vibrator with a calculating process which that consecutively compares the memorized high-frequency wave current value signal with a new high-frequency wave current value signal coming from the conversion-transmission section. The output is the voltage value signal adjusted by tracking the peak high-frequency wave current value signal, from the microcomputer.

REFERENCES:
patent: 4134302 (1979-01-01), Matay
patent: 4271705 (1981-06-01), Crostack
patent: 4310891 (1982-01-01), Kabushiki
patent: 4312044 (1982-01-01), Baba
patent: 4365301 (1982-12-01), Arnold et al.
patent: 4409659 (1983-10-01), Devine

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