DEVICE FOR MEASURING TEMPERATURE FIELDS Russian patent published in 2019 - IPC G01K7/22 

FIELD: measuring equipment.

SUBSTANCE: invention relates to devices for measuring temperature and can be used in determining temperature fields in different media and on the surface of solid bodies. In the device for measuring temperature fields, consisting of series-connected resistive-diode circuits, connected in a three-wire circuit to DC sources and a harmonic signal, including a measuring device, novelty is that the voltage divider in the resistive-diode circuit consists of thermistors which are heat-sensitive elements. At that, instead of the first thermistor in the chain there is a calibration resistor with minimum temperature coefficient of resistance, and back-connected diodes are connected to voltage divider at points of connection between thermistors.

EFFECT: high accuracy of measuring temperature and wider temperature range of use thereof towards negative temperatures of up to minus 10 °C.

1 cl, 3 dwg