From ascen@world.std.com Fri Jan 6 06:39:02 1995 Return-Path: Received: from mx5.u.washington.edu by stein2.u.washington.edu (5.65+UW94.10/UW-NDC Revision: 2.32 ) id AA13296; Fri, 6 Jan 95 06:39:02 -0800 Received: from hitl-new.hitl.washington.edu by mx5.u.washington.edu (5.65+UW94.10/UW-NDC Revision: 2.31 ) id AA29916; Fri, 6 Jan 95 06:39:01 -0800 Received: by hitl.hitl.washington.edu; id AA00946; Fri, 6 Jan 1995 06:35:15 -0800 Received: from uucp4.UU.NET by relay3.UU.NET with SMTP id QQxxne18030; Fri, 6 Jan 1995 09:39:00 -0500 Received: from world.UUCP by uucp4.UU.NET with UUCP/RMAIL ; Fri, 6 Jan 1995 09:38:54 -0500 Received: by world.std.com (5.65c/Spike-2.0) id AA09689; Fri, 6 Jan 1995 09:36:01 -0500 Newsgroups: sci.virtual-worlds Path: ascen From: ascen@world.std.com (Ascension Technology) Subject: Re: TECH: Polhemus 3Space sensor Message-Id: Organization: The World Public Access UNIX, Brookline, MA X-Newsreader: TIN [version 1.2 PL2] References: <3ehkfp$bu4@nntp1.u.washington.edu> Date: Fri, 6 Jan 1995 14:35:53 GMT Lines: 66 Apparently-To: uunet!sci-virtual-worlds@uunet.uu.net Status: OR Sean Fox (spf@chmt.wits.ac.za) wrote: : I recently read an article which described the Polhemus 3Space sensor ( : McDonnel Douglass Corp) as being able to measure to within one degree of : angulation and to within 3mm of position. If anyone out there has some info : it would be greatly appreciated. : David I would like you to become aware or our tracking system, the Flock of Birds from Ascension Technology Corp. Our product has been around for years and is most often chosen over the Polhemus system because of it's many features. Low sensitivity to metal and higher accuracy specifications such as: Translation range: plus or minus 3'(8' optional) in any direction Angular range: plus of minus 180 degrees Azimuth & Roll plus or minus 90 degrees Elevation Translation accuracy: 0.1" RMS Translation resolution: 0.03" Angular accuracy 0.5 degrees RMS Angular resolution 0.1 degrees RMS @ 12" Update rate: Up to 144 measurements/second Outputs: X,Y,Z positional coordinates and orientation angles or rotation matrix Interface: RS-232C with selectable baud rates to 115,200; or RS-422/485 with selectable baud rates to 310,000 Format: Binary Modes: Point or stream Because the Flock of Birds uses Pulsed DC magnetic fields, it is significantly less sensitive to metal then Polhemus tracking system. And over the 8 years we have been selling this technology many people have switched to our system for that reason alone. I would like to email you our standard email-infopack, but my email bounced. Feel free to look over our User Manual, User software, Technical writeup, and marketing information in our FTP site. FTP.STD.COM /ftp/vendors/Ascension. (Remember to use BINARY mode for all files not *.txt) Please call us (and ask to talk to Jack Scully) if you would like to know more about our product. For technical questions call be directly (ext 14). The number is (802) 860-6440. Also, consider emailing me your postal address for more information. Regards, Steve Work Ascension Technology Corp Technical Support