🚀 go-pugleaf

In <1992Apr7.031033.19729@njitgw.njit.edu> andrews@rehab.njit.edu (John Andrews) writes:
>     I am looking at using a 3-SPACE digitizer from Polhemus
>     (also called ISOTRACK, Kaiser Aerospace) and am looking
>     for any information on this system or perhaps similar
>     systems from competing companies.

I bought one of these systems for my research several months ago.
It works well but is very sensitive to electronics/metal objects in the
area.  The software that comesw with it is pretty lame.  You have to 
write your own code (in C) to use it to do anything useful.  It is being
used in a variety of applications, not just VR.

The Isotrak gives location (x,y,z) AND orientation (pitch, roll, yaw) for 
a total of 6 degrees of freedom.  I don't see how you could get all that
using ultrasound (especially the 3 angles).

>     Has anyone any experience with this? Somethign similar?
>     A better way to locate and track something in 3 dimen-
>     sions? This system will run me over $10,000, so any and
>     all responses greatly appreciated.

No way. The base system (1 source and 1 probe) goes for about $3300.  
If you ask them right, who can buy a used sytem (same warantee) for half
that.  

If you want more info, let me know.

mike

-- 
Michael Drues                              Dept. of Biomedical Engineering
Internet:drues@iastate.edu                        1146 Veterinary Medicine
BITNET:v2.med@isumvs.bitnet                          Iowa State University
Office:(515)294-6520(or 4-1771) Home:(515)233-5652        Ames, Iowa 50011