Room Noise Detector Project Report

Three threshold noise levels like 50db 70db and 85db are fixed.

Room noise detector project report.

Mos technology is the basis for modern image sensors including the charge coupled device ccd and the cmos active pixel sensor cmos sensor used in digital imaging and digital cameras. With sw1 in the first position the circuit is off. Place the small box containing the circuit in the room where you intend to measure ambient noise. This circuit is intended to signal through a flashing led the exceeding of a fixed threshold in room noise chosen from three fixed levels namely 50 70 85 db.

This circuit is intended to signal through a flashing led the exceeding of a fixed threshold in room noise chosen from three fixed levels namely 50 70 85 db. Two op amps provide the necessary circuit gain for sounds picked up by a miniature electret microphone to drive a led. If the noise in the room exceeds a particular threshold it is indicated with the help of led s. While researching the mos process they realized that an electric charge was the analogy of the magnetic bubble and that it could be stored on a.

The room noise detector circuit can detect the intensity of noise in a room and signal through a series of flashing led s. So that a room noise detector is used to detect the noise has been build. Sound pollution is not a new issue. The 50 db setting is provided to monitor the noise in the bedroom at night.

The main purpose of doing this project is to build a detecting sensor to detect the noise level around us. The fascinating fact about the project sound detector circuit using op amp 741 is that it can be designed within a small area on a pcb or veroboard as well. Noise detector a room noise detector could serve as a burglar alarm during the night it could serve as a child protection device near a door to the outside of the home. Unfortunately its price is usually prohibitive for a normal diy maker and the uv neons are expensive anyway if you re thinking of building one.

Willard boyle and george e. Like that we can away from the noise which can influence our health or reduce the noise level. The 70 db setting is for living rooms. If the led is steady on or flashes bright often then your bedroom is inadequate and too noisy for sleep.

The led on the detector will tum on to indicate the noise level at range 50 db to.