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Apparatus and Methods for Self-Correcting Pressure Based Mass Flow Controller
Apparatus and Methods for Self-Correcting Pressure Based Mass Flow Controller
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机译:基于压力的自校正质量流量控制器的设备和方法
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摘要
A self-correcting pressure-based mass flow control apparatus includes outlet pressure sensing to enable correction for non-ideal operating conditions. Further the mass flow control apparatus having a fluid pathway, a shutoff valve in the fluid pathway, a reference volume in the fluid pathway, a first pressure measuring sensor in fluid communication with the reference volume, a first temperature measuring sensor providing a temperature signal indicative of the fluid temperature within the reference volume, a proportional valve in the fluid pathway, and a second pressure measuring sensor in fluid communication with the fluid pathway.
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