中国仪器仪表
中國儀器儀錶
중국의기의표
CHINA INSTRUMENTATION
2012年
3期
69-72
,共4页
低成本%低功耗%MCP41010%超声波热量表%回波信号
低成本%低功耗%MCP41010%超聲波熱量錶%迴波信號
저성본%저공모%MCP41010%초성파열량표%회파신호
Low cost Low power MCP41010 Ultrasonic heat meter Echo signal
介绍基于单片机MSP430F4152和数字电位器MCP41010的超声波热量表设计方案。采用超声波时差法原理，以MCP41010构成增益可调的超声波回波信号放大电路，利用MSP430F4152实现流体流量和温度差的测量，既测量精度，又降低了成本和功耗。
介紹基于單片機MSP430F4152和數字電位器MCP41010的超聲波熱量錶設計方案。採用超聲波時差法原理，以MCP41010構成增益可調的超聲波迴波信號放大電路，利用MSP430F4152實現流體流量和溫度差的測量，既測量精度，又降低瞭成本和功耗。
개소기우단편궤MSP430F4152화수자전위기MCP41010적초성파열량표설계방안。채용초성파시차법원리，이MCP41010구성증익가조적초성파회파신호방대전로，이용MSP430F4152실현류체류량화온도차적측량，기측량정도，우강저료성본화공모。
Presented a design of ultrasonic heat meter based on MSP430F4152 and digital potentiometer MCP41010 in this paper. Flow rate was measured by transit time principle, MCP41010 was used to compose of echo signal amplifier which gain was adjustable. Through the control of MSP430F4152, accurate flow rate and temperature measurement were achieved. The testing results show that the ultrasonic heat meter have the features of low cost and low power consumption, meanwhile the measurement accurate is guaranteed.
