利索-全球专利检索

  1. 登录
  2. 注册
发明申请
US20070041870A1 Sensor head, gas sensor and sensor unit 审中-公开
传感器头，气体传感器和传感器单元

Sensor head, gas sensor and sensor unit
摘要：
The present invention includes a three-dimensional base body (40) having a curved surface allowing definition of a circular orbital band (B), an electroacoustic transducer (21) arranged on the orbital band (B) of the three-dimensional base body (40) and configured to excite surface acoustic wave to perform multiple roundtrips along the orbital band (B), and a sensitive film (25) formed on at least a part of the orbital band (B) of the three-dimensional base body (40) and configured to react with a specific gas molecule. The surface acoustic wave experienced the multiple roundtrips along the orbital band (B) is then converted into a high frequency electric signal again by an interdigital transducer (21). The resulting high frequency electric signal is transferred to a detection/output unit (24) via a switching unit (23) and then detected by the detection/output unit (24).
摘要（中）：

本发明包括具有允许定义圆形轨道带（B）的弯曲表面的三维基体（40），布置在三维基体的轨道带（B）上的电声换能器（21） 40），并且被构造成激励表面声波以沿着轨道带（B）进行多次往返行程，以及形成在三维基体（40）的轨道带（B）的至少一部分上的敏感膜（25） ）并配置为与特定气体分子反应。 经过轨道频带（B）的多次往返行驶的表面声波再由叉指式换能器（21）再次转换为高频电信号。 所产生的高频电信号经由切换单元（23）传送到检测/输出单元（24），然后由检测/输出单元（24）检测。

信息查询
Global Dossier Espacenet
0/0