Multichannel thermocouple compensation for three dimensional temperature gradient

摘要

A method of using a thermocouple is provided. The method includes, but is not limited to, disposing at least one temperature sensor at each of two or more respective portions of an electrical connector adapted to receive thermocouple signals, measuring temperatures at the two or more portions, and calculating the temperatures at each terminal of the electrical connector based on measured temperature values of the two or more respective portions having the disposed temperature sensors. The method also includes, but is not limited to, calculating a cold junction temperature of a terminal for at least one thermocouple channel carrying the thermocouple signals based on measured or calculated temperature values of the terminals, or a combination thereof.

主权项

1. A method of using a thermocouple, comprising:
disposing at least one temperature sensor at each of two or more respective portions of an electrical connector that receives thermocouple signals; measuring temperatures at the two or more portions, wherein at least one portion is inside a housing and at least another portion is at least partially outside the housing; calculating the temperatures at each terminal of the electrical connector based on measured temperature values of the two or more respective portions having the disposed temperature sensors, wherein each of the temperature sensors is electrically connected to each terminal, wherein the electrical connector has more terminals than temperature sensors; and calculating a cold junction temperature of a terminal for at least one thermocouple channel carrying the thermocouple signals based on measured or calculated temperature values of the terminals, or a combination thereof.