水分検知装置
- 专利权人:
- コーア株式会社
- 发明人:
- 平沢 浩一,中村 卓裕,伊藤 雅一,原 一裕,船岡 佳員
- 申请号：
- JP2010003134
- 公开号：
- JP5515111B2
- 申请日:
- 2010.01.08
- 申请国别(地区):
- JP
- 年份:
- 2014
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a moisture detection device capable of detecting moisture regardless of a distance between a transceiver and a resonance circuit, and detecting the degree of adhesion of moisture in the noncontact state.
SOLUTION: The device includes: a resonance circuit part 14 constituted of a coil and a capacitor a sensor part 13 connected to the resonance circuit part, whose resistance value is changed by adhesion of moisture a reception circuit part 24 for allowing the resonance circuit part to generate a reflection radio wave by a transmission radio wave from an oscillation circuit part 21, and receiving the reflection radio wave and an analysis circuit 26 for the received reflection radio wave on the reception circuit part. The device detects moisture adhering to a sensor part based on a waveform analysis result of attenuation vibration. Analysis of an attenuation vibration waveform of the reflection radio wave is performed by comparing a voltage just after oscillation OFF with a voltage after elapse of a fixed period thereafter.
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- 来源网站：
- 中国工程科技知识中心
