Thickness Effect of Piezoelectric Ceramic Transducer and Welding Spot Problem

1. What is the relationship between the thickness and frequency of a circular piezoelectric ceramic crystal?

A circular piezoelectric ceramic crystal whose frequency mainly refers to the resonant frequency, and its resonant frequency has both radial and thick directions. For the radial resonant frequency, it is inversely proportional to the diameter of the ceramic piece, that is, the larger the diameter of the piezo ceramic piece, the larger is the radial frequency. In the thick-direction resonant frequency, the thickness is also inversely proportional. The larger is the thickness, the smaller is the thick-direction resonant frequency.

2.Does the thickness of the piezoelectric ceramic sheet affect its sound-making?

The thickness of the soft material piezo ceramic sheet determines its stiffness. The rigidity of the piezoelectric ceramic piece determines the natural frequency of the piezo ceramic crystal, and further determines its sound. Therefore, through this discussion, it can be concluded that the thickness of the piezoelectric ceramic sheet will affect its vocalization.

3. What is the reason for the loss of silver when the piezoelectric ceramic piece is welded?

The specific reason for the loss of silver during the welding of piezoelectric ceramic sensor sheets is as follows: first, the soldering temperature is too high, or the soldering time is too long; second, the quality of the silver layer on the piezoelectric sheet is not good. Therefore, the welding of the piezoelectric ceramic piece does not require the warming up and preheating work, and the welding time should not be too long, generally speaking, it can be several seconds.

4. What is the main material of PZT piezoelectric ceramics? What is its characteristic?

About PZT piezoelectric ceramics , whose main material is lea high d zirconate titanate. The main feature of this type of Piezoelectric discs transducer is theefficiency of piezoelectric conversion. Its function is to convert mechanical energy into electrical energy, or to convert electrical energy into mechanical energy, that is, the mutual conversion between mechanical energy and electrical energy.

5. Piezoelectric ceramics, can it always provide DC power? And, its equivalent circuit, can be seen as what?

Piezoelectric ceramics, which can not always provide direct current, because they can not continuously output the charge, so this conclusion will be made. The equivalent circuit can be regarded as an LC or RC complex resonant circuit, and its natural resonant frequency is determined by the material and process of the piezoelectric ceramic. Moreover, it cannot be changed.

6. What is the sensitivity of piezoelectric ceramics? In addition, the ultrasonic transducer, which is the effect of using piezoelectric ceramics?

The sensitivity of piezoelectric ceramics is mainly related to the piezoelectric ceramic material, the shape of the piezoelectric ceramic, and the coupling mode thereof. Moreover, if a specific value is to be obtained, it can only be obtained by actual testing. The ultrasonic transducer, which utilizes the piezoelectric and inverse piezoelectric effects of piezoelectric ceramics.