Type K Thermocouple Amplifier And Cold Junction Compensator

The output conditions of a Type K thermocouple, while providing cold-junction compensation, operating over temperatures between 0’C and 250’C is shown in circuit diagram below. This circuit has been designed to produce a basic output voltage transfer characteristic of 10mV/’C and operates from single +3.3V to +5.5V supplies with the AD8551. A Type K thermocouple exhibits a Seebeck coefficient of […]

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Temperature Sensor Current Loop Transmitter

LM134 makes a good temperature sensor because it has a highly linear output characteristic. Because it is a current output device and is therefore not affected by long wire runs, LM134 is particularly useful in remote sensing applications. LM134 is easy to calibrate. It has good long term stability and can be interfaced directly with most data acquisition system, so […]

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