发明名称 |
Providing nonlinear temperature compensation for sensing means by use of padé approximant function emulators |
摘要 |
Pade Approximant function emulators are used to model the nonlinear offset and/or nonlinear sensitivity behaviors of a sensor relative to temperature sub-ranges and to produce temperature compensating corrections for both offset and sensitivity as desired. In order to avoid use of brute force division for generating the Pade Approximant function signals, in one set of embodiments, feedback is used to provide a corresponding effect. In order to minimize the number of coefficients that are to be resolved and stored, in one set of embodiments, first or higher order Pade Approximants with normalized denominators are used so that each function can be defined with just three coefficients. Embodiments that are more analog in nature or more digital in nature are disclosed. Methods for resolving the Pade Approximant coefficients and calibrating each sensor unit on a mass production basis are also disclosed.
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申请公布号 |
US7991571(B2) |
申请公布日期 |
2011.08.02 |
申请号 |
US20080166661 |
申请日期 |
2008.07.02 |
申请人 |
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC |
发明人 |
LARAIA JOSE MARCOS;WILLIS DAVID JOHN |
分类号 |
G01K15/00;G01C25/00;G01D18/00 |
主分类号 |
G01K15/00 |
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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