Design of High Precision Passive Meter Based on MSP430F1121 Microcontroller Unit
The design method and the hardware and software design scheme of two-wire meter with low power consumption is introduced. It solved the shortcomings of traditional two-wire meter which has low measurement accuracy and large temperature drift at high temperature. The meter uses the low power consumption single chip computer MSP430F1121, collects the two-wire loop current value, converses used 16bit ADC ADS8320, computes the value using compensation filtering algorithm, and finally displays the value data on the LED. The measurement accuracy reaches 0.1％. The experiments prove that the meter has low power, high accuracy, and reliable operation, and high anti-interference capability, stable and strong practicality. It could be became the development direction of two-wire meter.
Ultra-low power high precision MSP430F1121 passive two-wire
Wang Peng Lv Zhigang
School of Electronic and Information Engineering,Xi an Technological University,Xi an 710032 China
国际会议
厦门
英文
1406-1409
2010-05-22（万方平台首次上网日期，不代表论文的发表时间）