VORTEX-TYPE FLOWMETER HAVING STRAIN GAUGE SENSOR IN AN ELASTIC SUSPENSION

摘要

A flowmeter having a conduit forming a passage for the fluid to be measured and an obstacle assembly mounted therein capable of generating strong fluidic oscillations which cause a deflectable section of the assembly to vibrate at a corresponding rate. The vibrations are sensed by a strain gauge to produce a signal whose frequency is proportional to the flow rate of the fluid passing through the conduit. The strain gauge is elastically suspended in a cavity formed within the vibratory section to minimize fatigue and other adverse effects.