thermocouple junction

Although current flows very little, power can be generated by a single thermocouple junction.

He balanced the bridge after the swinging needle came to a haltwhen the thermocouple junction had assumed the temperature of the fixture.

In order for this thermoelectric process to work, a thermoelectric generator must take advantage of the temperature difference experienced by two legs of a thermocouple junction.

The thermocouple junction is often exposed to extreme environments, while the reference junction is often mounted near the instrument's location.

A useful feature in thermocouple instrumentation will simultaneously measure resistance and detect faulty connections in the wiring or at thermocouple junctions.

The temperature detected at the thermocouple junction depends on the thermal conductivity of the surrounding gas, which depends on the pressure of the gas.

In thermocouple meters the current passes through a fine wire that heats a thermocouple junction; the electricity generated by the thermocouple is measured by an ordinary galvanometer.

He found that his data could be modeled through a simple equation with variable composed of the reading from a galvanometer, the length of the test conductor, thermocouple junction temperature, and a constant of the entire setup.

Potential Pitfalls in a Computerised Thermocouple System The "Cold Junction" Reference Measurement The system depends on knowing the temperature of one of the thermocouple junctions (the cold junction).

In this technique a wire sample of high purity reference material, in the form of a small coil, is fixed to the thermocouple junction, and the thermocouple is heated slowly in a controlled atmosphere (argon or air).

Thermocouple probes where the probe temperature is monitored by a thermocouple junction at the probe tip and resistive or bolometer probes where the probe temperature is monitored by a thin film resistor at probe tip.

In this configuration, the thermocouple junction is attached to the centre of a short heating wire, which is usually energised by a constant current of about 5mA, and it is this heat which is removed at a rate related to the thermal conductivity of the gas.