OSCILLATOR OF ACOUSTIC VIBRATIONS Russian patent published in 2006 - IPC B06B1/20 

FIELD: the invention refers to electroacoustics and more concretely- to arrangements for generating acoustic vibrations of a sound frequency in aggressive high temperature medium at high pressure and may be used for example for diagnosing high-forced combustion chambers.

SUBSTANCE: the oscillator has a face electrode and coaxially located with it a hollow electrode, a source of constant voltage, in-series connected a source of alternate voltage of a sound frequency and a solenoid. The source of constant voltage is switched to electrodes. At that, the hollow electrode is fulfilled in two parts, and the solenoid is placed between them and electrically isolated from them. The isolation may be fulfilled out of heat resistant ceramics.

EFFECT: increases intensity of vibrations at high temperature and pressure.

1 cl, 5 dwg