气体感测模块及应用其的无线发射装置与无线感测系统

Gas sensing module and wireless transmitting device and wireless sensing system using same

Abstract

本发明涉及一种气体感测模块及应用其的无线发射装置与无线感测系统。气体感测模块包括压电共振器、气体感测单元及调变元件。压电共振器连接至气体感测单元及主动电路,使得主动电路输出一与待测气体浓度相关的载波。而调变元件连接至压电共振器,以设定载波的频率或振幅。本发明耗电量小、成本低;适用于抛掷场合;以及适用于多点检测。
The invention relates to a gas sensing module and a wireless transmitting device and a wireless sensing system using the same. The gas sensing module comprises a piezoelectric resonator, a gas sensing unit and a modulation element. The piezoelectric resonator is connected to the gas sensing unit and an active circuit, so that the active circuit outputs a carrier wave related to the concentration of gas to be measured. The modulation element is connected to the piezoelectric resonator for setting the frequency or the amplitude of the carrier wave. The invention has less power consumption and low cost and is applicable to throwing occasions and multipoint detection.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    CN-1727875-AFebruary 01, 2006大连理工大学Method for detecting density of hydrogen
    CN-1896720-AJanuary 17, 2007汪胜前Gas and liquid concentration testing sensor and testing system
    CN-2831113-YOctober 25, 2006友力微系统制造股份有限公司多功能无线检测装置

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle