采用电桥电路、仪表放大器、AD转化器、单片机、控制通断继电器和烧水杯，实现了温度控制系统的控制，达到的设计要求。

设计制作要求如下：

1、要求能够测量的温度范围是环境温度到100oC。

2、以数字温度表为准，要求测量的温度偏差最大为±1oC。

3、能够对水杯中水温进行控制，控制的温度偏差最大为±2oC，即温度波

动不得超过2oC，测量的精度要高于控制的精度。

4、控制对象为400W的电热杯。

5、执行器件为继电器，通过继电器的通断来进行温度的控制。

6、测温元件为铂热电阻Pt100传感器。

7、设计电路以及使用单片机学习板编程实现这些要求，并能通过键盘置入预期温度，通过LCD显示出当前温度。-Using the bridge circuit, instrumentation amplifier, AD converter, microcontroller, control relays and boil-off cup, realizes control temperature control system to achieve the design requirements. Design requirements are as follows: 1, requires the ability to measure the temperature range is the ambient temperature to 100oC. 2, a digital thermometer, whichever is required maximum deviation of the measured temperature 1oC. 3, it is possible to control the temperature of the glass in the control of temperature deviation maximum 2oC, namely temperature fluctuations may not exceed 2oC, the accuracy of measurement is higher than the control accuracy. 4, the control target is 400W electric mug. 5, the implementation of the device for the relay, to control the temperature of the relay-off. 6, temperature measurement element is a platinum RTD Pt100 sensors. 7, the design of the circuit board and the use of single-chip learning program to achieve these requirements, and through the keyboard int