| 摘要 |
<p>An ultrasonic sensor (10) for fluid levels comprises a carrier having spaced-apart legs with registering openings adapted to receive a piezoelectric transmitter and a piezoelectric receiver in the openings. The piezoelectric members are separated by the spaced legs of a ground plane engaging plates of the piezoelectric members. Resilient members in the form of coiled conductors are entrained between a snap-on cover and the transducers so as to resiliently engage the piezoelectric members against the ground plane. The conductors are coupled by crimp connectors to the leads of a cable carried by an elongated channel portion of the carrier. The crimp connectors are carried in recessed portions of the carrier, and the carrier is over-molded to encase the connectors and the cable (16). The cable (16) is in turn coupled to an electronic control module (18) positioned remotely from the fluid sump and connected to a warning device (20).</p> |
