温度计是一种应用很广泛的用品,但传统的水银温度计存在着响应速度慢、读数不直观等缺陷。而市面上一些数字温度计虽然克服了上述缺陷,却由于价格昂贵而难以普及。数字温度计的数显部分大多采用 Thermometer is a widely used supplies, but the traditional mercury thermometer there is a slow response, the reading is not intuitive and other defects. Although some digital thermometers on the market overcome the above shortcomings, they are difficult to be popularized due to their high price. Most of the digital thermometer digital display part