Patent ID: 6456145
Filing Date: 2002-09-24
Classification: G01D,G01K,G05F,H03M

Abstract:
For use with a data acquisition circuit having a voltage input and an input signal corresponding to a detectable characteristic, a method for providing a corrected output signal that represents the detectable characteristic, the method comprising:obtaining a first output signal by dividing the input signal by a sum of the voltage input and the input signal using one of a plurality of division circuits; obtaining a second output signal by dividing the voltage input by the sum of the input signal and a product using one of the plurality of division circuits, the product being the voltage input multiplied by a first coefficient selected and adapted for signal correction; multiplying the second output signal by a second coefficient selected and adapted for signal correction and obtaining a third output signal; adding the first output signal with the third output signal to obtain a corrected output from the data acquisition circuit, the corrected output exhibiting a canceled nonlinear function of at least a second order; and providing the corrected output corresponding to the detectable characteristic.