发明名称 Heated element velocimeter
摘要 The present invention is a heated element sensor for detecting the flow rate of a fluid or other physical characteristics of a fluid. The invention teaches driving the thermo-resistive element along a profile having at least two states and measuring the power and temperature of the sensor at each state. In this way a dissipation coefficient can be determined and fluid flow and other physical characteristics determined without the need for ambient temperature to be determined.
申请公布号 US5117691(A) 申请公布日期 1992.06.02
申请号 US19900491884 申请日期 1990.03.12
申请人 THE JOHN HOPKINS UNIVERSITY 发明人 FRASER, ALLAN B.
分类号 G01F1/698;G01N27/18 主分类号 G01F1/698
代理机构 代理人
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