河南科学
河南科學
하남과학
HENAN SCIENCE
2014年
10期
2035-2038
,共4页
MSP430F149%单片机%电阻测试系统
MSP430F149%單片機%電阻測試繫統
MSP430F149%단편궤%전조측시계통
MSP430F149%single-chip computer%resistance test system
针对现有电阻测试中存在的不足，设计了一种单片机电阻测试系统，详细阐述了系统的构成、工作原理、硬件和软件设计思想.该电阻测试系统的测量范围为0~10 MΩ，具有100Ω、1 kΩ、10 kΩ、10 MΩ四个量程，根据被测电阻的大小能够实现量程的自动转换，还可以对测试数据保存、打印、串口与上位机通讯等功能，具有抗干扰能力强、工作可靠、运算速度快、测量误差小等特点.经反复试验，系统测量的平均误差小于0.63%.
針對現有電阻測試中存在的不足，設計瞭一種單片機電阻測試繫統，詳細闡述瞭繫統的構成、工作原理、硬件和軟件設計思想.該電阻測試繫統的測量範圍為0~10 MΩ，具有100Ω、1 kΩ、10 kΩ、10 MΩ四箇量程，根據被測電阻的大小能夠實現量程的自動轉換，還可以對測試數據保存、打印、串口與上位機通訊等功能，具有抗榦擾能力彊、工作可靠、運算速度快、測量誤差小等特點.經反複試驗，繫統測量的平均誤差小于0.63%.
침대현유전조측시중존재적불족，설계료일충단편궤전조측시계통，상세천술료계통적구성、공작원리、경건화연건설계사상.해전조측시계통적측량범위위0~10 MΩ，구유100Ω、1 kΩ、10 kΩ、10 MΩ사개량정，근거피측전조적대소능구실현량정적자동전환，환가이대측시수거보존、타인、천구여상위궤통신등공능，구유항간우능력강、공작가고、운산속도쾌、측량오차소등특점.경반복시험，계통측량적평균오차소우0.63%.
In the paper,we elaborated system structure and working principle,at the same time,gived the system hardware block diagram and software design method. The measurement range is 0-10 MΩof this intelligent resistance testing instrument with four measuring ranges(100Ω,1 kΩ,10 kΩ,10 MΩ). The intelligent resistance testing instrumen can realize automatic conversion of range according to the measured resistances. The system also can save and print the test data,and provides the serial port communication function with PC. The system has the characteristics of strong anti-interference capability,reliable working,fast operation,small measuring error and so on. Repeated experiments verify that the system average error of measurement is less than 0.63%.
