专利汇可以提供Vortex-type mass flowmeters专利检索,专利查询,专利分析的服务。并且A vortex-type mass flowmeter for accurately measuring the mass of fluid passing through a flow tube, the meter being insensitive to background noise resulting from turbulence in the fluid admitted into the flow tube. A bluff body or other means disposed within the tube acts to create a pulsatory fluidic vortex therein whose frequency varies as a function of the volumetric flow rate of the fluid being measured. Placed within the flow tube is a pressure-responsive transducer adapted to generate an electrical signal whose fundamental frequency is proportional to the fluidic pulse rate and whose amplitude is a function of the kinetic energy contained in the vortex. The transducer signal is processed by an operational amplifier, the gain of which is inversely proportional to frequency, thereby effectively dividing the transducer signal by frequency throughout the operating range of the meter to yield an output signal whose amplitude represents mass flow. The output signal is applied to an electronic signal recovery system to filter out all but the fundamental frequency whereby the indicator reading accurately indicates mass flow.,下面是Vortex-type mass flowmeters专利的具体信息内容。
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