This is probably what I will do. I was just wondering if anything else existed, besides the IR and Ultrasonic types. I wanted something to put on the end of my robot arm gripper, and just keep measuring until it got very close. ----- Original Message ----- From: "Sean H. Breheny" To: Sent: Friday, July 25, 2003 12:09 AM Subject: Re: [ot]: distance measuring sensor > Hi, > > Why can't you simply put the sensor further back from the "zero" point? Why > do you need it to be able to sense right up to itself? > > Sean > > At 11:50 PM 7/24/2003 -0500, you wrote: > >Are there any hobby type measurement sensors that > >can measure from zero on up to some limit? > > > >I have looked at the IR sensors from Sharp and they go > >from 10 cm to their upper limit > > > >And the ultrasonic sensors can't seem to measure below > >an inch. > > > >Is there a way to measure closer than this for the hobbiest? > > > > > >Thanks > > > >What about using two ultrasonic sensors and figuring out > >the geometry? How accurate would this be? > > > >Thanks > > > >-- > >http://www.piclist.com hint: To leave the PICList > >mailto:piclist-unsubscribe-request@mitvma.mit.edu > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu