sibon3
Posts: 6
Joined: Sat May 28, 2016 8:45 pm

Long Distance Retro Reflective Sensor

Sat May 28, 2016 8:52 pm

I'm looking for information on a retro reflective sensor that can cover 100 foot range that can be used with Raspberry PI. Everything I have seen is for short distances under 3 feet.

rotwang
Posts: 243
Joined: Sat Dec 07, 2013 1:12 pm

Re: Long Distance Retro Reflective Sensor

Sun May 29, 2016 10:23 am

I assume you are using a laser, as I don't see anything else making that distance, try searching for "corner cube" which is an arrangement of three mutually perpendicular reflectors, either in the form of mirrors or a glass cube.
You will however require very rigid mountings at that range, and getting the laser aimed at the reflector is going to be a challenge.
sibon3 wrote:I'm looking for information on a retro reflective sensor that can cover 100 foot range that can be used with Raspberry PI. Everything I have seen is for short distances under 3 feet.

PiGraham
Posts: 4263
Joined: Fri Jun 07, 2013 12:37 pm
Location: Waterlooville

Re: Long Distance Retro Reflective Sensor

Sun May 29, 2016 10:36 am

sibon3 wrote:I'm looking for information on a retro reflective sensor that can cover 100 foot range that can be used with Raspberry PI. Everything I have seen is for short distances under 3 feet.
Such sensors exist, but may cost more than you have in mind.
http://www.keyence.co.uk/products/senso ... ion-08.jsp can do 30m (100ft)

Heater
Posts: 17110
Joined: Tue Jul 17, 2012 3:02 pm

Re: Long Distance Retro Reflective Sensor

Sun May 29, 2016 11:01 am

I have one these to evaluate form work:
http://www.noptel.com/eng2/FastDistance ... ucts/5_cm5
2 to 380 meters range if you have a reflective target.

Only about 2500 Euros.

Or you might like the Parallax range finder. 0 to 59 meters for $349.
https://www.parallax.com/product/28043

Or this for 100 meters
https://www.parallax.com/product/28058

or this for 50 meters.
https://www.parallax.com/product/28057
Memory in C++ is a leaky abstraction .

PiGraham
Posts: 4263
Joined: Fri Jun 07, 2013 12:37 pm
Location: Waterlooville

Re: Long Distance Retro Reflective Sensor

Sun May 29, 2016 4:24 pm

If you don't absolutely need retroreflective you can find some much more affordable through-beam sensors.
Such as this Outdoor 100m Double Beam Security Active IR Detector ABT-100

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