Patent ID: 6826490
Filing Date: 2004-11-30
Classification: G01R

Abstract:
A computerized method for calibrating a transducer:loading a default configuration of a transducer into a memory of a computer, said default configuration comprised of N voltage values and Nâˆ’1 incremental scale factor values correlative to said N voltage values starting with N equal to 2, wherein N is an integer; iteratively replacing at least one of said N voltage values and recalculating said Nâˆ’1 incremental scale factor values during each iteration wherein a final iteration defines Nâˆ’1 final incremental scale factor values; identifying a series of adjacent incremental scale factor values from said Nâˆ’1 final ISF values that meet a predefined criteria; calculating a transducer calibration parameter as a function of said identified series of adjacent incremental scale factor values that meet the predefined criteria; transforming the output of the transducer and thus, the use of the transducer, from the first target object material to the second different target object material by linearizing the output of the transducer into gap values as a function of the calculated calibration parameter and correlative to a distance between the transducer and the second different target object material being monitored.