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Design of Expendable Sea Temperature Measurement System
Author(s): 
Pages: 6-8,16
Year: Issue:  3
Journal: Ocean Technology

Keyword:  海水温度测量抛弃式探头热敏电阻MSP430低功耗;
Abstract: 介绍了一种抛弃式海水温度测量系统的设计.针对电池供电和空间受限的海水温度测量环境,基于MSP430单片机低功耗、高性能、多外设的优良特性,提出了一种热敏电阻测温方案.利用单片机内部的基准电源和A/D转换器实现对热敏电阻信号的激励和采样;通过MSP430单片机各种工作模式之间的灵活转换,降低了系统的功耗;采用电压源比例测量法,由热敏电阻阻值与温度的对应关系获得海水温度.系统温度分辨率0.01℃,使用一等标准铂电阻测温仪检定,温度测量误差小于±0.1℃.
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