shadow
Template Community / Ultrasonic Sound Beam Burglar Alarm

Ultrasonic Sound Beam Burglar Alarm

EdrawMax user profile image
Kiraaaa
Published on 2020-10-21
Download
Download
Download EdrawMax
Edit Online
logoanimation
This unique anti-theft alarm uses invisible and inaudible ultrasonic waves to detect movement of objects. Ultrasonic transducers can work at the highest efficiency under the frequency of 40kHz. Therefore, this circuit uses an ultrasonic transmitter and receiver operating at 40 kHz to control the buzzer or relay.
Tag
circuit
Report
0
99
EdrawMax user profile image
Post
Recommended Templates