Patent ID: 7658539
Filing Date: 2010-02-09
Classification: G01K

Abstract:
1. A process variable transmitter for measuring a temperature of a process, comprising: a first terminal configured to couple to a temperature sensitive element; a second terminal configured to couple to the temperature sensitive element; a third terminal configured to couple to the temperature sensitive element; a fourth terminal configured to couple to the temperature sensitive element; measurement circuitry configured to measure an electrical parameter between a pair of the terminals; and a microprocessor configured to identify a location relative to the terminals, of the temperature sensitive element coupled to at least two of the terminals based upon an electrical parameter measured by the measurement circuitry between at least two pairs of terminals, the microprocessor further configured to calculate a temperature of the temperature sensitive element based upon the measured parameter and the identified location of the temperature sensitive element wherein the calculated temperature is a function of the identified location of the temperature sensitive element.