Cidepe

Function

Intended for the study of: Thermoelectric thermometry. Thermoelectric laws. The Seebeck effect. The thermocouple or thermocouple. An immediate consequence of the Seebeck effect. Temperature measurements. 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 emf in a series association of thermocouples. Applications of the series association of thermocouples. The thermopile. The parallel association of thermocouples. Applications of the parallel association of thermocouples. The differential thermocouple. The thermocouple, accuracy, protection, calibration and time constant. The inaccuracy of the measurement with thermocouples. The protection of thermocouples and the resulting inaccuracy. The calibration of the thermocouple 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 in the measurement of the 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 association. The copper-constantan thermocouple and the measurement of the thermoelectric emf. The differential thermocouple. The Cromel-Alumel thermocouple and the measurement of the thermoelectric emf. The Ferro-Constantan thermocouple and the measurement of the thermoelectric emf. The Ferro-Constantan thermocouple with Copper in between and the measurement of thermoelectric emf, etc.

Cidepe - Industrial Center for Teaching and Research Equipment - is a company of reference in educational instruments in educational institutions in Brazil and abroad. With an experienced team of engineers, professors, researchers, consultants and other collaborators, Cidepe develops products with technology and human talent to improve the teaching dynamics.
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Details

Details with the main experiments