本文对我国仪表行业中新崛起的改型动圈指示仪,在基型的基础上,如何发展变型产品,扩大其功能,如量程迁移、温差指示、冷端温度补偿、克服零漂等提出了粗浅的看法。同时对热电阻型动圈仪t～U_(12)的非线性关系作了理论分析,并给出了数学表达式,从而找到了克服动圈仪非线性误差的途径,它对数字式仪表怎样线性化也有参考意义。 Based on the basic type, how to develop variant products and expand their functions, such as the range shift, temperature difference indication, cold junction temperature compensation, overcoming the zero drift and so on Superficial view. At the same time, the nonlinear relationship between the thermocouple dynamic instrument t ~ U_ (12) is analyzed theoretically, and the mathematical expression is given, so as to find a way to overcome the nonlinear error of the moving coil instrument and how it affects the digital instrument Linearization is also of reference.