2006-12-26 21:22:43 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
It's kinda like a bat's or a submarine's sonar, but most of them use light instead of sound. you send out a signal, bounce it off a flat surface, and it comes back to your sensor on the proximity sensor. Using the time between ping and echo along with the speed of your particular wave in the media (air) you can calculate the distance between the sensor and the surface you bounced signal off of. here's the general idea:
PING - wait 3 seconds - echo - use the speed of the media to calculate the distance = we're close
PING - wait 2 seconds - echo - use the speed of the media to calculate the distanc = we got closer
2006-12-27 02:48:19 · answer #1 · answered by promethius9594 6 · 0⤊ 0⤋
(control systems) Any device that measures short distances within a robotic system. Also known as noncontact sensor
2006-12-26 21:27:39 · answer #2 · answered by ♣Ben *10♣ 3 · 0⤊ 0⤋
please feel free to check the following link it all about proximity senors and their types
http://www.solarbotics.net/library/circuits/sensors_prox.html
2006-12-27 03:48:54 · answer #3 · answered by abel m 1 · 0⤊ 0⤋