Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1998-10-23
2000-04-04
Gutierrez, Diego
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
374 1, 374208, 439188, G01K 1500, G01K 716
Patent
active
060452609
ABSTRACT:
A transmitter in a process control loop measures temperature. A calibrator includes a known calibration element which is connected to the transmitter. Software in the transmitter compares a measured value of the calibration element with the actual value of the calibration element and responsively calibrates the transmitter. The calibrator includes a temperature calibration sensor for coupling to a terminal block of the transmitter. The temperature calibration sensor provides an actual temperature input to the transmitter. The transmitter measures actual temperature of the terminal block and compares actual temperature with a temperature measured by an internal terminal block temperature sensor, and responsively calibrates the internal temperature sensor.
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Kirkpatrick William R.
Schwartz Bradley N.
Gutierrez Diego
Pruchnic Jr. Stanley J.
Rosemount Inc.
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