ultrasonic distance meter

[maverick8888]

hi all.
ive been looking all over the internet for a circuit that will measure distance, and cant find a circuit.

can anyone help me with this.... i just need a circuit that will measure the distance of an object. kinda like a golf distance meter. same idea but i need to know how it works. thanks to all for reading and replying.

 

[goodpickles]

Someone correct me if I am wrong, but I think that ultrasonic distanc measures work by sending out and ultrasound and measuring the time it takes for it to bounce off and come back

 

[Russlk]

Look up RADAR, same principle but using sound instead of radio waves.

 

[tussi]

Hi, you can try searching for UTEC4018F. This sensor is great too use with avr controllers, many robot projects use this..