Post by thread:2D Space Recognition

I'm looking for a way to create a small pad where I can put sensors at the corners and have them recognize where an object is in the area. I was thinking about doing it with magnetic fields, but there's no flux change unless I move the object. Is there any way to do this with an IR transmitter. The area is limited to 10cm x 10cm and it has to be sensitive to within 0.1 mm. The source of movement can't be a directional, because the signal must be picked up no matter where the object is. Stuart Allman spam_OUTstudioTakeThisOuThalcyon.com

On Wed, 27 Sep 1995, Stuart Allman wrote: > I'm looking for a way to create a small pad where I can put sensors at > the corners and have them recognize where an object is in the area. I > was thinking about doing it with magnetic fields, but there's no flux > change unless I move the object. Is there any way to do this with an IR > transmitter. The area is limited to 10cm x 10cm and it has to be > sensitive to within 0.1 mm. The source of movement can't be a > directional, because the signal must be picked up no matter where the > object is. > > Stuart Allman > .....studioKILLspam@spam@halcyon.com You might want to try modifying an old Koala Pad (a touch pad made for Apple & Commodore computers). I think that Radio Shack used to also sell a version of it. How heavy is your object? -()---()---()---()---()---()---()---()---()---()---()---()---()---()---()- Rolan Yang http://hertz.njit.edu/~rxy5310 Electrical Engineer rxy5310KILLspamhertz.njit.edu .....kyuriusKILLspam.....tsb.weschke.com VR,ROBOTICS,FENCING,HACKING,INDUSTRIAL MUSIC,ART,EXPLOSIVES,INLINE SKATING THESE ARE A FEW OF MY FAVORITE THINGS. -()---()---()---()---()---()-----()-()---()---()---()---()---()---()---()- 4 out of 10 people are annoyed by ^ this.

You also might want to try: Interlink Electronics 546 Flynn Road Camarillo CA 93012 805-484-8855 They make force-sensing resistors in various flat configurations, including a square grid of sensors that might work for your application. My information is 2 years old, so hopefully they're still in business.

In message <EraseME9509271419.aa03387spam_OUTTakeThisOuTpunt-4.mail.demon.net> PICLISTspam_OUTmitvma.bitnet writes: > I'm looking for a way to create a small pad where I can put sensors at > the corners and have them recognize where an object is in the area. I > ^^^^^^ > Stuart Allman > @spam@studioKILLspamhalcyon.com > Any clues to the size, shape and weight of this object? It might help with a solution. Mike Watson -- Mayes uk

On Wed, 27 Sep 1995, Mayes uk wrote: > In message <KILLspam9509271419.aa03387KILLspampunt-4.mail.demon.net> RemoveMEPICLISTTakeThisOuTmitvma.bitnet > writes: > > I'm looking for a way to create a small pad where I can put sensors at > > the corners and have them recognize where an object is in the area. I > > ^^^^^^ > > Stuart Allman > > spamBeGonestudiospamBeGonehalcyon.com > > > Any clues to the size, shape and weight of this object? It might help > with a solution. > Think of the pad in the same way as the powerbook touch pads work. The object could be the tip of a pen, or a finger, or the end of some type of sensor. ie. Something small. Stuart Allman TakeThisOuTstudioEraseMEspam_OUThalcyon.com > Mike Watson > -- > Mayes uk >

Hi, >You also might want to try: Interlink Electronics > 546 Flynn Road Camarillo CA 93012 > 805-484-8855 > >They make force-sensing resistors in various flat configurations, >including a square grid of sensors that might work for your >application. My information is 2 years old, so hopefully they're >still in business. Anyone who has the faxnumber to Interlink Electronics ? Thanks in advance, /Christer -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- * High Tech Horizon - Christer Johansson - * email: RemoveMEcjTakeThisOuTalgonet.se * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- * Vi saljer Parallax, Inc. BASIC Stamp's produkter i Skandinavien * >> World Wide Web - http://www.algonet.se/~cj/catalog.html << -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

>Hi, >>You also might want to try: Interlink Electronics >> 546 Flynn Road Camarillo CA 93012 >> 805-484-8855 >> >Anyone who has the faxnumber to Interlink Electronics ? Their fax number is: (805) 484-8989. ---- Sergey Sorokin ProSoft, Inc. 17/21 Malaya Ekaterininskaya Str., 129110, Moscow, Russia Tel. +7(095) 971-2059 Fax. +7(095) 971-4000 E-mail: sorokinEraseME.....prosoftmpc.msk.su