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Principle Of Temperature Controller

Jan 16, 2017

Mechanical and electronic,

Mechanical type with two layers of different thermal expansion coefficient of metal together, temperature change, will change his bent when bending to a certain extent, connected (or disconnected) circuit, cooling (or heating) device.

Electronically through thermocouples, platinum resistance temperature sensor temperature signal into electrical signal, controlled by microcontroller, PLC, circuit relay makes the heating (or cooling) equipment (or stop).

There is a Mercury thermometer, temperature to have contacts and mercury switch on