Calculation and comparison of the capacitance of piezoceramics

Piezoceramics tablet, I'm sure you won't be unfamiliar with these five words, because they are one of the main keywords on the website, as well as one of the products on the website. Therefore, based on these two points, it is necessary to study in this field so that everyone can get a good learning effect and increase their knowledge in this field at the same time.

1. Piezoelectric ceramic plate, can it be called a buzz plate?

When the piezoelectric ceramic plate is bonded to a metal substrate, it vibrates and makes sound under the excitation of an alternating current electric field. However, if it does not match the acoustic resistance of the air, then the sound produced is small. The buzzer, which gets its sound by resonance, is very loud. Therefore, there is a difference between the two. We can't draw an equal sign. Therefore, this argument does not hold water.

2. What are the similarities and differences between piezoelectric ceramic chips and capacitors?

What piezoelectric ceramic chips and capacitors have in common is that they are similar in material and structure. However, the main difference is that the piezoelectric ceramic plate will produce stress deformation in the process of electrification, while the capacitance also has this deformation, but very small, mainly depends on the attraction of the electric field to do the job.

3. Is the capacitance calculation of piezoelectric ceramic chip the same as that of ceramic dielectric capacitor?

The capacitance calculation of piezoelectric ceramic plate is the same as that of ceramic dielectric capacitor. The calculation formula of plate capacitor is: C =εx s/D.

Where, c refers to the capacitance in f, ε refers to the dielectric coefficient of the medium in f/m, and s refers to the electrode area in m2. D is the thickness of the medium, in meters.

Comparison between piezoelectric ceramics and current generation conditions

With regard to piezoelectric ceramics, although we have a lot of knowledge and content about this product in front of us, if we look at the learning requirements and objectives, we still do not meet the standards, so we must continue to learn about this product. In this case, we'd better build on what we have and strike while the iron is hot. That way, everyone learns something new in time.

1. Do quartz crystals and piezoelectric ceramics have the same piezoelectric effect?

From a professional point of view, the piezoelectric effect of quartz crystals and piezoelectric ceramics is different. Because there is no volume deformation piezoelectric effect in quartz crystals, but there is in piezoelectric ceramics. Therefore, we can draw the above conclusion, which is also the main difference between them.

2. If the piezoelectric ceramics are always pressed, will there be electric current all the time?

According to Wuxi Huifeng, a manufacturer of piezoelectric ceramics, the answer to this question is no, because piezoelectric ceramics generate current because they generate positive and negative charges on the surface, which generates voltage, which generates current. If the potential on the two surfaces is equal, the current will stop and there will be no discharge. So, it's pressed all the time, and there's no current.

3. What are the similarities between power fiber and piezoelectric ceramics?

Power generation fiber and piezoelectric ceramic similarities are mainly as follows:

On these two materials, if they come into contact, electricity is generated under certain conditions, allowing electron transfer. However, when the material is separated, the material receiving the electrons becomes negatively charged. At this point, if the connection is made in a loop, a current will be generated to balance the charge, but it is not very large.

The above questions are about piezoelectric ceramics, but also their basic knowledge and important content. Therefore, everyone needs to take them seriously and catch them in time. Only in this way can we get good grades and not waste such a good learning opportunity, leaving us with irreparable regret.