In RTD circuits a controlled (usually constant) current is passed through the sensor, a resistor whose resistance increases gradually, repeatably, and approximately linearly with temperature.

• 在电阻式温度检测器巡回控制的(通常恒定的)电流通过通过传感器抵抗逐渐增大,重复操作,和近似地线性地增加温度。