Quick and Fast IR sensor

Other Hardware Sensors
1

Hey guys,

I am looking for a Fast and quick responding IR sensor, which can detect an Object from 6 mm diameter and about 70 m/s speed.

It would help me if you know some blogs who talked about this or some products and circuits I could use

Thanks for your help

2

Where is the IR light coming from? Is it steady or modulated like from a TV remote control? Is there other IR light, such as the sun, that will flood the sensor?

Paul

3

How far from the IR sensor will the "6 mm" object be, and what is in the background?

4

Thanks for reply,

There will be nearly no other light and the IR Light comes from an IR diode on the other side. The Background will be black and I think the distance between IR sensor and IR emitter will be 20 mm.

Thanks.

5

Use an IR photodiode in reverse bias mode, for extremely fast response. You will probably need a suitable amplifier.

Google "arduino light gate" for some example projects.