| 摘要 |
A device for sensing and measuring gaseous and/or vapor state analytes based on resonant piezoelectric layers, comprising a substrate from alumina (1), a plurality of sensors (2a, 2b, 2c, 2d) made from lead zirconate-titanate based piezoelectric elements, realized by means of a thick film technology on said substrate (1) and coated with sensitive coatings suitable to selectively and reversibly absorbing said analytes, at least a heating element (3) suitable to thermostate said substrate (1), as well as suitable circuits for the amplification, transmission and elaboration of the signals emitted by the sensors and suitable means for the treatment and electronic data processing and/or software. |
