基本信息:
- 专利标题： 液中物質檢測感測器 SENSOR FOR DETECTING SUBSTANCE IN LIQUID
- 专利标题（英）：Sensor for detecting substance in liquid
- 专利标题（中）：液中物质检测传感器 SENSOR FOR DETECTING SUBSTANCE IN LIQUID
- 申请号：TW096107621 申请日：2007-03-06
- 公开(公告)号：TW200801507A 公开(公告)日：2008-01-01
- 发明人： 岡口健二朗 OKAGUCHI, KENJIRO , 羽田拓生 HADA, TAKUO , 門田道雄 KADOTA, MICHIO
- 申请人： 村田製作所股份有限公司 MURATA MANUFACTURING CO., LTD.
- 申请人地址： 日本
- 专利权人： 村田製作所股份有限公司 MURATA MANUFACTURING CO., LTD.
- 当前专利权人： 村田製作所股份有限公司 MURATA MANUFACTURING CO., LTD.
- 当前专利权人地址： 日本
- 代理人： 桂齊恆; 閻啓泰
- 优先权： 日本 JP2006-166112 20060615
- 主分类号： G01N
- IPC分类号： G01N
A sensor for detecting a substance in liquid surely with higher sensitivity. The sensor (1) for detecting a substance in liquid comprises a sensing oscillation circuit (11) including a sensing SAW element (12) provided with a reaction film reacting to a substance in liquid to cover at least one IDT, and a first amplification circuit (15); and a reference oscillation circuit (21) including a reference SAW element (22) having at least one IDT and not having a reaction film, and a second amplification circuit (25) wherein the oscillation frequency of the sensing oscillation circuit (11) is separated by 200 x k<2> (ppm) or more from that of the reference oscillation circuit (21), where k<2>(%) is the electromechanical coupling coefficient of a piezoelectric substrate employed in the sensing SAW element and the reference SAW element.
公开/授权文献:
- TWI331216B 液中物質檢測感測器 SENSOR FOR DETECTING SUBSTANCE IN LIQUID 公开/授权日：2010-10-01