What is the working principle of the noise sensor?

　　 What is noise ？ In short , All the sounds you don't want can be called noise . Noise is everywhere , Continuous strong noise will affect people's normal life . When noise has an adverse effect on people , It will become a kind of pollution . Noise can damage people's hearing , Interfere with people's sleep , But it will also affect people's nervous system ... In the long term , It will do great harm to people's physical and mental health .
　　 The influence of noise cannot be ignored , Therefore, the treatment of noise can not be ignored . In recent years , Noise complaints occur frequently . Among all sources of noise complaints , Noise complaints from social life are the most , The second is the construction noise complaints , It fully shows that noise pollution has seriously affected people's daily activities , Governance must be strengthened . In order to further standardize the noise management throughout the city , The municipal government issued relevant documents according to the local actual situation , Expressed strong support for strengthening the supervision of noise sources such as construction sites through scientific and technological means . for example , Use the noise monitoring equipment to help the construction personnel timely adjust the relevant factors of excessive noise on the construction site , Strive to achieve the goal of non disturbing construction noise .

　　 One 、 Working principle of noise sensor
　　 The noise sensor is equipped with a highly sensitive electret condenser microphone . When an object produces sound , Acoustic vibration and displacement electret film in microphone , Cause the capacitor to change , Thus, a small voltage corresponding to the change is generated , Realize the conversion from optical signal to electrical signal .
　　 Three kinds of noise sensors and their main applications .
　　1. Wall mounted noise sensor
Wall mounted King shell noise sensor adopts wall mounted installation , Suitable for indoor use . If used for indoor monitoring of substations , Choose wall mounted Royal noise sensor . It only needs two screws to install on the wall , Very convenient .
　　2. Shutter box noise sensor
The shutter noise sensor has good rain, snow and dust prevention effect , Good air mobility and UV radiation resistance , Suitable for all kinds of outdoor environments . If the shutter noise sensor can be used on the construction site , Its main feature is waterproof , Rain and snow have little effect on it .
　　3. Long rod noise sensor
The shell of the long rod noise sensor adopts 304 Stainless steel , And equipped with flanges , Suitable for workshop and other industrial environments .

　　 Two 、 The characteristics of our noise sensor
　　① The noise sensor adopts high sensitivity condenser microphone , The signal is stable , High precision .
　　② Noise sensor IP65 High protection level , The voltage supply is wide , Strong anti-interference ability .
　　③ from 30 To 120, The measurement range of noise sensor is very wide .
　　④ At home 、 The office 、 workshop 、 Automobile measurement 、 Industrial measurement and other fields , It can meet the daily measurement needs .
　　⑤ The platform has noise monitoring 、 Real time data viewing 、 The curve shows 、 Overrun alarm 、 Data export and other functions , It can be uploaded to our environmental monitoring software platform .
　　 In the process of gradually improving China's ecological environment , Pay attention to noise pollution . Monitoring noise and controlling pollution , Create a comfortable and quiet life for the public 、 Learning and working environment , Make tranquility a high-quality life for contemporary people “ Standard configuration ”.