Thermoelectric effect assembly, Seebeck effect, with liquid column thermometers.

Função

Intended for the study of: Thermoelectric thermometry. The copper-constantan thermocouple and the measurement of thermoelectric emf. The differential thermocouple. A way to measure the internal electrical resistance of a voltmeter. A way to measure the internal electrical resistance of an ammeter. The thermoelectric laws. The Seebeck effect. The thermocouple. An immediate consequence of the Seebeck effect. Temperature measurements. The thermoelectric laws. The first thermoelectric law. Some consequences of the first thermoelectric law. The thermoelectric law of intermediate metals. The importance of the reference junction, cold junction. The Dewar flask. The second thermoelectric law, the law of successive temperatures. Circuits with thermocouples and measurement of electromotive force. What is electromotive force (emf)? The importance of choosing the measuring instrument. Thermoelectric power. The calibration curve of the thermocouple. The thermoelectric power of the thermocouple. Commercial thermocouples. Commercial thermocouples and some applications. Thermoelectric compensation wires. Special care in connections with compensation wires. Identification of compensation wires. Special circuits with thermocouples. The electromotive force (EMF) in a series connection of thermocouples. Applications of the series connection of thermocouples. The thermopile. The parallel connection of thermocouples. Applications of the parallel connection of thermocouples. The differential thermocouple. The thermocouple, accuracy, protection, calibration, and time constant. The inaccuracy of thermocouple measurements. Thermocouple protection and the resulting inaccuracy. Thermocouple calibration and the temperature standard. The time constant of a sensor or instrument, response time of a sensor or instrument. The influence of the internal resistance of the millivoltmeter on the EMF measurement of a thermocouple, for example, correction factor. Example with an unsuitable measuring instrument. Digital instruments versus analog instruments. The correction factor between a digital instrument and an analog instrument, etc.