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Temp compensation of pressure sensor

Hi,

Does  anybody have any experience or knowledge on temperature compensation of pressure sensors ?

Looks like the article titled below has a s simple and practical method to achieve temp compensation. This article states that 3 equations and 3 unknowns have been solved using MATLAB. There is no detail about how they have solved the equations. Any idea ?

Thanks

A High-Temperature Piezoresistive Pressure Sensor with an Integrated Signal-Conditioning Circuit