PROBE Russian patent published in 2003 - IPC

FIELD: concentration of aerosol particles and deposition by spraying; samplers for check of gases; acceleration of gases. SUBSTANCE: proposed probe includes nozzles mounted coaxially and hermetically interconnected; their throats are no less than throat of first nozzle (in way of gas flow). At least one nozzle is free in axial motion for regulation of distance between nozzle throats during operation of probe. Due to change in distance between nozzle throats, ejection effect occurs at lesser pressure differential, thus giving rise to supersonic flow at lesser power requirements and ensuring steady obtaining of working mode. Better working mode is achieved due to regulation of distance between nozzle throats at minimum pressure differential, thus making it possible to place probe in supersonic mode of operation. EFFECT: enhanced stability of placing in working mode. 2 dwg