基本信息:
- 专利标题: 容量結合式センサ装置および容量結合式センサ装置を用いた物質の検出方法
- 专利标题(英):Capacitance coupled sensor and substance detecting method using capacitance-coupled sensor
- 专利标题(中):电容耦合传感器和电容耦合传感器的物质检测方法
- 申请号:PCT/JP2002/000377 申请日:2002-01-21
- 公开(公告)号:WO2003023332A1 公开(公告)日:2003-03-20
- 发明人: 北村 輝夫
- 申请人: 株式会社アルボ , 北村 輝夫
- 申请人地址: 〒431-2103 静岡県 浜松市 新都田1丁目9−1 Shizuoka JP
- 专利权人: 株式会社アルボ,北村 輝夫
- 当前专利权人: 株式会社アルボ,北村 輝夫
- 当前专利权人地址: 〒431-2103 静岡県 浜松市 新都田1丁目9−1 Shizuoka JP
- 代理机构: 村田 実
- 优先权: JP2001-267646 20010904
- 主分类号: G01F23/26
- IPC分类号: G01F23/26
摘要:
The versatility is enhanced by using a sensor producing an output signal of DC voltage. A sensor unit 400 includes three electrodes: a transmission electrode 401, a reception electrode 402 and a shielding electrode 403. The shielding electrode 403 isolates the transmission electrode 401 from the reception electrode 402 in a high-frequency manner and is earthed normally. A high-frequency voltage is applied to the transmission electrode 401 from a high-frequency oscillation circuit 410. A high-frequency voltage corresponding to the magnitude of the capacitance between the two electrodes 401 and 403 is outputted from the reception electrode 402. The high-frequency voltage outputted from the reception electrode 402 is transformed into a DC voltage by a detection circuit 420. The presence/absence or amount of a substance is determined depending on the magnitude of the DC voltage produced by the detection circuit 420.
摘要(中):
通过使用产生直流电压输出信号的传感器来提高通用性。 传感器单元400包括三个电极:发送电极401,接收电极402和屏蔽电极403.屏蔽电极403以高频方式隔离发送电极401与接收电极402并且正常接地。 从高频振荡电路410向发送电极401施加高频电压。从接收电极402输出与两电极401和403之间的电容的大小对应的高频电压。高电压 由检测电路420将从接收电极402输出的频率电压变换为直流电压。物质的存在/不存在或量取决于检测电路420产生的直流电压的大小。