Thermoelectric thermometry assembly, Seebeck effect, 5 types of connections on support panels.

Função

Intended for the study of: Thermoelectric thermometry. The thermoelectric laws. The Seebeck effect. The thermoelectric pair or 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 thermoelectric pair. 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 emf in a series connection of thermocouples. Applications of the series connection of thermocouples. Thermopile. Parallel connection of thermocouples. Applications of parallel connection of thermocouples. The differential thermocouple. The thermocouple, accuracy, protection, calibration, and time constant. The imprecision of thermocouple measurements. Thermocouple protection and the resulting imprecision. 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 measurement of the electromotive force (EMF) of a thermocouple, 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. The thermoelectric EMF at different points of a constantan, iron, and copper combination. The copper-constantan thermoelectric pair and the measurement of the thermoelectric EMF. The differential thermocouple. The chromel-alumel thermoelectric pair and the measurement of the thermoelectric EMF. The iron-constantan thermoelectric pair and the measurement of the thermoelectric EMF. The iron-constantan thermoelectric couple with intermediate copper and the measurement of the thermoelectric emf, etc.