摘要
本文提出了一种方法,即在同一变化的温度场下,用一已知温度特性的高精度热敏电阻对一批未知温度特性的热敏电阻进行标定,由此得到其相关参数及数学模型,只需将参数写入智能测温仪器的存贮器,就可直接用其测温,而不需要改变硬件线路,克服了热敏电阻的非线性、离散性。
In demarcting, we use a thermistor of which we know its resistor-temperature function as a standard measuring system, and use another one which we do not know its R-T function as an unknown measuring system. Then we put them to a changing temperature. By using known measuring system we get the temperature T and by using unknown system get unknown systemsoutput V. With these datas, we get thermistors real mathematic model function T=f(V) and some other important parameters.