热电偶被广泛用于测量各种系统的温度。在系统设计或测试期间,必须观察在不同的温度下系统的响应。然而,每当人们需要检测系统性能时都要给热电偶加热,这是很不方便的。可以使用让热电偶接触很热的烙铁这种简单的方法,但这种方法只能提供粗略的近似的结果。图1所示的简单网络能设定若干个在给定温度下与若干个热电偶输 Thermocouples are widely used to measure the temperature of various systems. During system design or testing, the response of the system at different temperatures must be observed. However, it is inconvenient to heat the thermocouple whenever people need to test system performance. This simple method of making a thermocouple in contact with a hot iron can be used, but this method can only provide a rough approximation. The simple network shown in Figure 1 can be used to set several thermocouple inputs at a given temperature