20Pcs Piezo Ceramic Elements Buzzer Dia 15Mm Sounder Sensor Trigger Drum Disc With Wire Copper For Buzzer

Piezoelectric ceramic buzzer is a kind of device used in piezoelectric ceramics. The more common one is to use zirconium, Titanium and piezoelectric ceramic chips (pzt) made by sintering lead oxides are most sensitive to 3khz audio signals, so the resonant frequency of the buzzer is usually designed to be around 3khz during production. In order to improve the low frequency response, a dual diaphragm structure is generally used. When voltage is applied to piezoelectric ceramics, it will produce mechanical deformation with changes in voltage and frequency. On the other hand, when the piezoelectric ceramic is vibrated, an electric charge is generated. Using this principle, when an electrical signal is applied to a vibrator composed of two piezoelectric ceramics or a piezoelectric ceramic and a metal sheet, the so-called bimorph element, ultrasonic waves will be emitted due to bending vibration. On the contrary, when ultrasonic vibration is applied to the piezoelectric bimorph element, an electrical signal is generated. Based on the above effects, piezoelectric ceramics can be used as ultrasonic sensors. High sensitivity and low energy consumption Good reliability and stability High and low temperature resistance, long life Thin thickness and light weight Small size, high pressure resistance Color:as the picture Size:1.5*10.8cm Package Included:20Pcs Note: Due to manual measurement, please allow an error of 1-3mm. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.