If it is the force of the periodic change and continues to act on the piezo ceramic dics, then the piezoelectric ceramic will continue to generate electricity, and its waveform is close to sine wave. And if it is a momentary force, then it is close to the pulse on the waveform.
 

There are some precautions for the welding work of piezoelectric components .Specifically, it should not be too high in the welding time, it is not suitable for the process, otherwise it will affect the welding quality, and then affect the use of the piezoelectric ceramic sheet. The welding time is generally only a few seconds.

The vibration detection circuit of the piezo ceramic element is actually not complicated, you just connect the two electrodes on the oscilloscope. However, it should be noted that the voltage of the piezoceramic element chip is MV level. Also, if the signal amplitude is too low, a low-noise operational amplifier can be used to amplify the signal for observation.

About piezoelectric ceramic transducers, which utilize the two major effects of piezoelectric ceramics, in particular, the transducers use the inverse piezoelectric effect when they emit, and they utilize positive piezoelectric effect when is receiving ,In turn, let this kind of transducer work and use normally.

About piezoelectric ceramics and piezoelectric switches, these are something in common,  Because they are all the mutual conversion of pressure and electrical signals. However, piezoelectric ceramics convert electrical signals into pressure piezoelectric vibration sensor, and piezoelectric switches convert pressure into electrical signals.

The voltage of piezoelectric ceramics is generated is so small ,which can only reach the micro-ampere level, for the luminous diode or or a flashlamp ,its voltage and current is 2.5V/0.02A.

Piezoelectric ceramics have the polarity reason because when the piezoelectric ceramics are under stress, the two surfaces have the charge accumulation, thereby generating a certain voltage. Since the molecules are polar, they are divided into positive and negative electrodes. In the macroscopic terms, it is the accumulation of electric charges, and then the piezoelectric ceramics have positive and negative electrodes.

The crystal oscillator of the piezoelectric ceramic and the piezoelectric transducer quartz crystal oscillator are compared in terms of the two aspects, and there are certain differences, and the two are mainly on the accuracy and temperature stability. Moreover, relatively speaking, the accuracy of the quartz crystal oscillator can reach six decimal places.

As for the piezoelectric ceramic materials, in general, whose parameters are invariable. However, it should be noted that the thickness and diameter of the piezoelectric ceramic.which have a certain influence on the dielectric constant and elastic stiffness of the piezoelectric sensor.

For the efficiency,comparing the thickness direction vibration with the radial vibration of the piezoelectric discs, from the professional point of view, the former is higher in the efficiency of the thickness direction. However, if conditions have limitations, it is possible to have only one radial vibration. Therefore, in general, the answer is to vibrate in the thickness direction, but if there are special circumstances, it is not necessarily.

If you want the piezoelectric ceramic to vibrate, then the simple method is to connect it to the secondary AC voltage of the small transformer. About mechanical vibration of the piezoelectric ceramic , the range of its voltage is 0.1-0.15V, which is very small.

We have many types transducers, for measure distance, for measure depth, for measure gas flow meter, for measure flow rate, for measure mud level , please let us know your details applications, we can suggest the suitable product to you, if you have special require, we can customize for you.

Before ask the price, please let us know the require dimensions of piezo, require material, application, quantity.we have many stock of the piezo ,we can according your require to produce, the stock products delivery time need 3-5 days, customize products need 25-30 days, for special require of the piezo we need open new mould it will need more time, before ship the goods we will arrange test the piezo and send the test report with goods.