- Image 56 of 70
macro image of the inside of a optical smoke detector chamber, the square elements house a photo emitter and photo reciever, when smoke enters the chamber light is scattered by the smoke and reflected into the reciever this triggers the alarm; to confirm the reciever is working correctly periodically the intensity of the emitter is increased this it detected by the reciever via reflections from the inside of the chamber to confirm that the reciever is correctly calibrated.
- alarm chamber circuit closeup details fire prevention safety smoke device
- 3500 x 2329
- File size:
- 929 kB