Contact: Bruce
Tel: +86-755-22 666 190
Fax: +86-755-29 043 136
E-mail: sales@ultrasonic-sensors.net
Skype: longsunac
Address: Room A1, 6/F, Bldg. No. 531, Bagua 3rd Road No. 277, Futian District, Shenzhen, China 518029
3. Structure of Ultrasonic Transducer
Open structure ultrasonic transducer
As the right figure shows, a compound oscillator is fixed on the base flexibly. The compound oscillator is a conjunct object that is made from cone, piezoceramics and a metal plate. The oscillator looks like a loudspeaker, it can radiate ultrasonic wave that the compound oscillator vibrates to produce effectively, and can get ultrasonic wave in the centre of the oscillator together effectively.
Waterproof type ultrasonic transducer
The ultrasonic transducer using outdoor must be better sealed so that prevent dew, rain and dust from the outside. The piezoelectric ceramic is fixed inside top of a metal box, the base is fixed in the hatch of the metal box, and covered with the resin, see the right illustrated drawing. 
