How to judge the quality of the active buzzer

When choosing an active buzzer, everyone doesn't want to choose a bad one. This is also a human feeling. Need to be able to judge the active buzzer good or bad expertise. But don't worry, then, let's understand how to judge the quality of the active buzzer together!

Method 1. Look at the outer packaging

buzzer product of the active buzzer to know whether it is defective or not. Whether the machine is clean can be judged by whether the manufacturer's logo on the buzzer is clear.

method 2. check the size of the buzzer

judgment standard based on customer requirements (specifications), mainly check the product diameter, height, distance between pins, etc.

Method 3. Check the appearance of the buzzer

When checking the appearance of the buzzer, you need to refer to the template. The determination criteria are as follows. No mixing, no damage, no pollution, no shedding, reverse polarity and other adverse conditions.

Method 4. Check the electrical performance of the buzzer

When checking the electrical performance of the buzzer, you need to refer to the template. The determination criteria are as follows. The sound pressure value, capacitance value, frequency and other properties of the product.

Method 5. whether the buzzer technology is mature

In addition, pay attention to whether the manufacturer's buzzer technology is mature. If the technology is not mature, the material requirements of the buzzer must not be met. As an electronic buzzer, the main energy source is supplied by DC power, and there are many types, which can be classified according to current, packaging, structure, driving mode, etc. The most common in these many categories are active buzzers and passive buzzers, which are the two most widely used devices. The characteristics of the active buzzer are also obvious.

Because the active buzzer has more structural vibration sources than the passive buzzer, there are more components, so it has the characteristic of making a sound when only the power is turned on during use. It is used in various equipment and its main function is Alarm operation, closing the alarm is also an alarm failure. The application of this part is very extensive, mainly in computers, copiers, electronic toys and other electronic products. The principle of its generation is composed of a vibration device and a resonance device, and the principle of active and passive pronunciation is not very different.

is usually used with other parts, but the parts alone cannot play its role to a greater extent. It is used together with a transistor, a freewheeling diode, and a smoothing capacitor to generally constitute a drive circuit for normal operation.

The above is how to judge the quality of the active buzzer. The main method to judge the quality of the active buzzer is only to consider various factors to better judge the quality of the buzzer. I hope the above suggestions are helpful to everyone.