目前市场上使用的电子价秤大都采用应变式称重传感器,经A/D转换后输入单片机计算出所称重量,这种电子秤价格昂贵,给普及使用带来困难。本文采用自行研制的变极距式电容称重传感器,应用于微电脑电子秤,大大降低了电子计价秤的成本。 At present, most of the electronic price scales used in the market are strain gauge load cells. After the A / D conversion, they are calculated and input into the single chip computer to calculate the weight. The electronic scales are expensive and bring difficulties to popularization. In this paper, self-developed variable capacitance capacitance-type load cell sensor, used in microcomputer electronic scales, greatly reducing the cost of electronic pricing scales.