what is the cost of piezoelectric transducer

For the ultrasonic distance meter, the transmitting of high frequency piezo ceramicsin the ultrasonic field is required to be fan-shaped, and a rectangular oscillator is considered as a wave source. A rectangular wave source of length L and width W is used for piston vibration, and the longitudinal sound field of piezo ceramic cylinderis radiated in the gaseous medium that is similar to the disk source. The radiated beam is a quadrangular pyramid, and FIG. 5 shows a perspective view of a directional main lobe of a rectangular wave source. The half diffusion angle in the L direction is piezo ceramic pzt chip,for example,θL = arcsin( 1.22λ/L), and the half diffusion angle in the W direction is θW = arcsin. The ultrasonic range finder emits 36 kHz ultrasonic waves for single,its frequency ranging is piezoelectric disc crystal, that is, the resonant frequency of the piezoelectric ceramic resonator is 36 kHz. This frequency not only satisfies the system's requirements for detection range, accuracy, and sensitivity, but also makes the transmitted ultrasonic waves more efficient in the air. Through formula calculation and experimental correction, the dimensions of the piezoelectric ceramic rectangular resonator were determined: L = 26. 5mm, W = 11.2mm, and t = 0.7mm. The piezoelectric disc transduceris designed as a closed resonant structure with a fundamental frequency resonance. The housing is made of engineering plastic, which can fix and protect metal ceramic adhesive sheets. The two electrode pins are respectively connected to the electrode surfaces of the metal iplate and the ceramic plate through the leads, and the connection of piezo ceramics can be performed using solder or low-temperature conductive adhesive.