| 摘要 |
A transducer includes a resonant structure which comprises a first spring-mass system (21, 11) extending to a connection mass or nexus (13) to which is connected a second spring-mass system (12, 22), which includes a sensing element (12). The two spring-mass systems vibrate in antiphase. The nexus (13) is connected to a mechanical datum provided by a mounting (10) by means of a semi-rigid connection member (23) which is preferably stiffer than the first member and which can control the relative motions of the first and second spring-mass systems. The sensing element contains a re-entrant resonator (24, 14) constituted by a spring-mass system, which can be used to adjust the characteristics of the transducer. |
