发明名称 |
Pressure and temperature compensation algorithm for use with a piezo-resistive strain gauge type pressure sensor |
摘要 |
A method of determining a temperature and a pressure in a tank is provided. The method comprises the steps of obtaining sensor data and calculating coefficients. Then, a bridge resistance is ratiometrically determined from a bridge voltage. A temperature is calculated with the coefficients and the bridge resistance. Thereafter, a transition from a temperature measurement mode to a pressure measurement mode is made. A voltage per resistance is calculated with the coefficients and a differential voltage. Then, a normalized voltage is calculated using the voltage per resistance, the differential voltage, and the bridge resistance to indirectly compensating for temperature. A pressure is calculated with the coefficients and the normalized voltage.
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申请公布号 |
US2006052968(A1) |
申请公布日期 |
2006.03.09 |
申请号 |
US20050200335 |
申请日期 |
2005.08.09 |
申请人 |
RANCO INCORPORATED OF DELAWARE |
发明人 |
MILLER WOJTEK;CUPPLES KENNETH A.;CHAMPION JAMES R. |
分类号 |
G01D1/00;G01K1/00;G01K3/00;G01L15/00;G06F15/00 |
主分类号 |
G01D1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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