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High Durability Hexagonal Piezoelectric Discs Sensors

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FBPZT20mm-half
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FBELE

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Product Description

What are the differences between piezoelectric ceramic discs and buzzers? What are the main methods for quality inspection? In addition, how to correctly distinguish the positive and negative electrodes of piezoelectric ceramic sheets? The above three questions are all related to the website product of piezoelectric ceramic sheets, so let's study it carefully below.

1. What are the differences between piezoelectric ceramic sheets and buzzers?

Piezoelectric ceramic sheets, although they can vibrate and produce sound, have certain limitations, so the sound emitted is very small. And the buzzer amplifies the sound through resonance. Therefore, there is a significant difference between piezoelectric ceramic sheets and buzzers, and these two cannot be equated or confused.

piezo ceramic

2. Quality inspection of piezoelectric ceramic sheets

There are some corresponding detection methods for the quality of piezoelectric ceramic sheets. Specifically, there are two main types:

Method 1: Use the voltage range of the multimeter for testing. If the swing amplitude is relatively large, it indicates good quality and high sensitivity. However, it should be noted that the AC voltage range of the multimeter cannot be used, and the DC current range should be used. In addition, testing personnel should not wet their hands to avoid affecting the accuracy of measurement results.

Method 2: Use the resistance range of a multimeter to measure the bipolar resistance of a piezoelectric ceramic sheet. If the quality is good, it should be infinite. Moreover, gently tapping the ceramic plate should cause the multimeter pointer to oscillate slightly.

How to correctly distinguish the positive and negative electrodes of piezoelectric ceramic sheets?

In fact, it's not difficult. Just lead a wire from each pole of the piezoelectric ceramic plate, and then connect the wire to the probe of the multimeter. Through the current range of the multimeter, observe the direction of the pointer's swing. If it is a right swing, then the red lead of the multimeter is connected to the positive electrode of the ceramic plate, and vice versa, it indicates that the black lead is connected to the positive electrode. By using this method, the positive and negative poles of piezoelectric ceramic sheets can be correctly determined.

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Company Profile

Established in 1997, FBELE has been one of the best electronic components manufacturer and distributor in China, Our electronic components have been applied to various fields.We have got all of the certifications for electronic components, just like CE,ROHS,REACH,UL.etc.we can be your first choice e
2023-07-10
About Us

Established in 1997, FBELE has been one of the best electronic components manufacturer and distributor in China, Our electronic components have been applied to various fields.We have got all of the certifications for electronic components, just like CE,ROHS,REACH,UL.etc.we can be your first choice e
2023-07-10
Our Company

Established in 1997, FBELE has been one of the best electronic components manufacturer and distributor in China, Our electronic components have been applied to various fields.We have got all of the certifications for electronic components, just like CE,ROHS,REACH,UL.etc.we can be your first choice e