In the selection of active buzzer, I believe that we are not willing to pick bad, this is also human nature. That requires expertise to judge the quality of the buzzer. But don't worry, the following, let's introduce the method of judgment.
Method 1, view the outer packaging of active buzzer
The outer packaging products used for buzzer products can be seen as shoddy. The manufacturer's logo on the buzzer is clear and complete to determine whether the machine is clean and tidy.
Method 2, check the size of the buzzer
The criteria for determining the standard is based on customer demand (specifications), the main inspection of the diameter of the product, height, pin distance, etc.
Method 3, check the appearance of the buzzer
In the inspection of the appearance of the buzzer, we need to refer to the model, the criteria are as follows: no mix, no damage, no pollution, no shedding, no antipolarity and other undesirable.
Method IV, test the electrical performance of the buzzer
In checking the electrical performance of the buzzer, we need to refer to the template to determine the criteria as follows: the sound pressure value of the product, capacity value, frequency and other performance.
Method V. Whether the chirping technology is mature
At the same time, we should also pay attention to observe whether the factory buzzer technology is mature, technical immaturity that must be in the buzzer material requirements are certainly not up to standard.
Established in 2007, Changzhou Jiezhimei Electroacoustic Material Co., Ltd. is an independent research and development high-tech enterprise that integrates design, research, development, production and sales of miniature ultra-thin high-power loudspeakers, receivers and buzzers.