【摘要】 本文提出了线性化中最佳折线的概念,推导出一种合理确定线性化中最佳折线的计算方法。笔者曾用此法设计制作了WFH-60型红外辐射温度计的线性化器。将非线性度约42％的曲线进行线性化,其线性化精度可达±0.5％。用线性化器进行非线性校正时,线性化器的输入-输出特性曲线应是被校曲线的反函数。工程上可采用折线近似法,使线性化器产生一条近似于被校曲线反函数的折线(图1)。由折线近似法引入的误差体现在线性化精度这一指标上,它的大小取决于被校曲线的非线性度和线性化器所产生的折线。被校曲线往往不易更改,所以提高线性化精度的关键在于折线的选择。更多还原

【Abstract】 A concept of optimum broken lines in linearization is described and an appropriate calculating method for determining the optimum broken lines is thus derived. The author has used this method to design the linearization device for type WFH-60 infrared radiation pyrometer. The characteristic curve, the original non-linearity of which was about 42%, has been linerarized with a linearity error not exceeding ±0.5%.更多还原