目前国际上在测温方面已广泛采用微电子技术,其中对于热电偶输出的非线性特性曲线补偿,有采用专用大规模集成电路的,有采用微处理机的,也有采用由线性集成电路组成的网路方法的。我们要介绍的是数字专用大规模集成电路,以下简称数字线性化器。该方案主要特点是: ①把E_X(t)电压温度曲线分割成若干段折线,在任一折线段内,由于E_X为t的线性函数,故可由E_X显示值表示变量t的值。最后,把所有折线区间的测量值求和.就能完成全范围内E_x对 At present, the temperature measurement in the world has been widely used microelectronic technology, which for the output of the thermocouple nonlinear characteristics of the compensation curve, the use of special large scale integrated circuits, the use of microprocessors, but also by the linear integrated circuit Network method We want to introduce digital special-purpose large scale integrated circuit, hereinafter referred to as digital linearizer. The program’s main features are: ①E_X (t) voltage temperature curve is divided into several sections of the polyline, in any broken line segment, because E_X is a linear function of t, it can be displayed by the E_X value of the variable t value. Finally, the sum of all the polyline interval measurements will be able to complete the full range of E_x pairs