Patent ID: 7796067
Filing Date: 2010-09-14
Classification: G01K,H03M

Abstract:
1. A method for providing an error corrected digital output from a temperature measurement system generating digital outputs representative of the output of one or more temperature sensors, said method comprising: storing in a plurality of memory locations corresponding error correction data, each of said memory locations having a correlation to a corresponding range of said digital outputs; utilizing each of said digital outputs to identify a corresponding one of said memory locations; accessing said corresponding one memory location to obtain error correction data specific to each of said digital outputs; establishing said error correction data from a piece-wise linear approximation of a characteristic error curve for said temperature measurement system; said characteristic error curve is determined from a plurality of error curves obtained from a statistically significant number of measurement systems; and utilizing said error correction data specific to each of said digital outputs to correct each said digital output, whereby error corrected digital outputs are generated.