COEFFICIENT OF THE THERMOELECTRIC POWER OF MATERIALS MEASURING DEVICE Russian patent published in 2018 - IPC G01N25/32 G01N25/18 

FIELD: measurement technology.

SUBSTANCE: invention relates to the measurement of material parameters, in particular thermoelectric power. Device for measuring thermoelectromotive force of materials contains the investigated and measuring thermocouples, voltage divider and a power source to it in the form of one of the thermocouples. It is additionally provided with a negative feedback loop, consisting of a series-connected amplifier, a controlled frequency generator and a frequency converter into a voltage, output, which is connected to the potentiometer. Slider potentiometer with a second thermocouple, and the lower terminal of the potentiometer (terminal) is connected to the input of the amplifier and through its input resistance with a common resistance point of the voltage divider. Output of the generator is also connected with the output of the device.

EFFECT: increase in speed and accuracy of measurements.

1 cl, 1 dwg