FLUID VIBRATION GENERATOR FOR WIDE RANGE OF FLOWRATES AND FLUID FLOWMETER INCORPORATING SUCH GENERATOR

摘要

FIELD: instrumentation engineering. SUBSTANCE: generator symmetrical relative to longitudinal center line has inlet section with hole for shaping fluid jet varying in crosswise direction. vibration chamber accommodates obstacle with cavity on front part forming, together with chamber walls, fluid passages and longitudinally stretched member placed downstream of obstacle. This member divides chamber space into two identical regions with at least one fluid communicating channel organized between them. Flowmeter incorporating proposed generator has pressure sensors placed inside obstacle cavity and coupled with jet vibration frequency meter. EFFECT: improved linearity within comprehensive range of flowrates irrespective of whether fluid flow is laminar or turbulent. 14 cl, 13 dwg