sensors

[edomus]

will infared sensors work through glass? and can they be programmed to perform a function only after activated for a certain time, say 3 seconds?

[seanwitte]

What kind of infrared sensors are you using? The sensors don't do anything on their own, they just measure a value and let you know what it is. Its up to you to take that information and do something useful with it.

[skrussel]

Not sure - [I know that UV doesn't go through glass]

But here's a way to check: Try it (under power) through the glass you plan to use, and if the light comes on, then you know it can .......if it doesn't, why not just drill a hole through the glass where you place the sensor.

(Info came from Bob Koehl, engineer on Team Ford FIRST)

[Joe Johnson]

If you are trying to debug IR stuff, there is nothing so useful as a camcorder.

The CCD sensors are sensitive to infrared frequencies.

Try it. It works.

Joe J.

[KenWittlief]

IR will go through glass

it will also go through black electrical tape (its transparent to IR)

[Adam Y.]

If you are trying to debug IR stuff, there is nothing so useful as a camcorder. The CCD sensors are sensitive to infrared frequencies.
I know. Infared should pop up as a purplish haze on a digital camera.
it will also go through black electrical tape
Electrical tape on the floor will work. I have seen plenty of line following robots follow a line of electrical tape. In fact read all the way to the bottom of the webpage.
sensor (http://www.lynxmotion.com/Product.aspx?productID=57&CategoryID=8)