NASA technical note TN (series). D-3567. Use of phase-locked-loop control for driving ultrasonic transducers [with list of references]; by L. Jack Smith.
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Use of phase-locked-loop control for driving ultrasonic transducers [with list of references]; by L. Jack Smith.
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NASA technical note TN (series). D-3567. Use of phase-locked-loop control for driving ultrasonic transducers [with list of references]; by L. Jack Smith.