发明名称 Light powered pressure gauge
摘要 An extremely low power transducer for use with a meter is able to be powered by miniature solar cells to measure and display a physical quantity such as pressure, force, level or distance. The transducer provides a variable capacitance to an electronic circuit that includes an integrated circuit for conversion to the displayed value.
申请公布号 US7228743(B2) 申请公布日期 2007.06.12
申请号 US20050314809 申请日期 2005.12.21
申请人 WEISS INSTRUMENTS, INC. 发明人 WEISS JOHN W.
分类号 G01L7/04 主分类号 G01L7/04
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