Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: sonictj on March 17, 2009, 06:04:21 AM

Title: looking for an ir rangefinder with fast response time
Post by: sonictj on March 17, 2009, 06:04:21 AM

I am currently using a sharp GP2Y0A02YK long range ir sensor on a stepper motor turret I built.  My problem is I'd like to scan the ir back and forth faster, but the reponse time on the sensors is ~40ms.  I'm just curious if anybody knows of any similar sensors that run quicker. 

Title: Re: looking for an ir rangefinder with fast response time
Post by: pomprocker on March 17, 2009, 10:06:33 AM

What about an array of sharp IR on a turret so more area is covered more quickly?

http://www.robotshop.us/summerour-ir-panner-servo-1.html (http://www.robotshop.us/summerour-ir-panner-servo-1.html)

Title: Re: looking for an ir rangefinder with fast response time
Post by: sonictj on March 17, 2009, 12:51:26 PM

That could work I just don't know if I have enough space.  I attached a pic of the bot.  If I were to use multiple IR I would need a concave mount to minimize the ir dead zone in front of the bot.  I am curious if a few ir, that close pointed slightly toward one another, would cause interference. 

Title: Re: looking for an ir rangefinder with fast response time
Post by: Admin on March 25, 2009, 01:00:47 AM

3x the sharp IR for 3x the scan rate:
http://www.societyofrobots.com/robot_omni_wheel.shtml (http://www.societyofrobots.com/robot_omni_wheel.shtml)

(http://www.societyofrobots.com/images/robot_omni_fuzzy.jpg)