论文部分内容阅读
目前,供热服务首要关心的是高精度的测量、计费和管理,因此设计出超低功耗、计量准确的热量表成为首要解决的问题。热量属于过程量,传统的测量方法对过程计量的本身就存在较大的难度,而且存在测量误差大、修正因素多等问题,对于小温差、小流速流体,很难完成温度的高精度测量;并且很多热量表的功耗很大,无法满足电池长时期驱动的要求。热量表由流量计、配对温度计和积算仪等部分组成,提出的基于MSP430FW42X的热量表能够实现功耗低、测量准确、数据存储量大的特点,具有性能优越、功能完善、使用范围广、长期使用稳定性高、体积小巧、使用安装便捷的特点。
At present, the primary concern of heating services is high-precision measurement, billing and management, so the design of ultra-low power consumption, accurate measurement of heat meter as the primary problem. The heat belongs to the process quantity. The traditional measurement method has great difficulty for the process measurement itself, and has the problems of large measurement error and multiple correction factors. It is very difficult to measure the temperature with small temperature difference and small flow rate. And a lot of calorific power consumption, can not meet the long-term battery-driven requirements. The heat meter consists of a flowmeter, a matching thermometer and a calculator. The proposed heat meter based on MSP430FW42X can realize the advantages of low power consumption, accurate measurement and large data storage capacity. The heat meter has the advantages of superior performance, complete functions, wide range of use, Long-term use of high stability, compact, easy to use installation features.