how to measure the distance between two objects in motion

Discussion in 'The Projects Forum' started by electrazy, Jan 20, 2009.

  1. electrazy

    Thread Starter Member

    Jan 19, 2009
    some apparatus that can be developed in lab using sensor ic transmitter etc

    ....ok let me make through an example
    for eg.- we have to measure the distance between two moving cars (any vehicle) moving with variable speed

    while the full apparatus is in the car running behind no part of device is placed on car in front

    car in front can be made of any material (reflector or non reflector) and can be of any shape

    both cars are in same plane

    assuming relative speed to be 1-16 meter per sec

    info is required in real time and output should voltage or current and proportional to distance

    distance must be measured continously(as it is changing with changing speed)

    max distance between them can be 8-10 meter
  2. RiJoRI

    Well-Known Member

    Aug 15, 2007
    Sounds like a continuously-operating speed gun.