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The 3Space Digitizer: A New Input Device for Solid Geometry ModelingThe 3SPACE Digitizer is a derivation of SPASYN, which is a patented magnetic transducing system offering an accurate method of calculating the location of one object relative to another. SPASYN uses low-frequency magnetic fields to measure both the position and orientation of its sensor relative to its transmitter. The 3SPACE Digitizer unit consists of a system's electronics unit, a model table, a stylus, and a keypad. In operation, the 3SPACE Digitizer determines the X, Y, Z coordinates of any point located on a low-conductive, three-dimensional model. This data, along with the orientation of the Digitizer's stylus, is immediately available for transmission to a host computer or graphics terminal. Digitization is effected by touching the point to be measured with the tip of a handheld stylus. The 3SPACE Digitizer presents new opportunities for interacting with computers in a large number of engineering and scientific applications. Developed from proven military technology, the 3SPACE Digitizer significantly simplifies three-dimensional digitization and overcomes many of the problems that once plagued such procedures. Its ability to digitize solid objects makes it a valuable new tool for computer-aided design and manufacturing.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Scully, J.
(Polhemus Navigation Sciences, Inc. Essex Junction, VT, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1984
Publication Information
Publication: Langley Research Center
Publisher: National Aeronautics and Space Administration
Subject Category
Computer Programming And Software
Meeting Information
Meeting: Abstracts of papers for Computer-Aided Geometry Modeling
Location: Hampton, VA
Country: US
Start Date: April 20, 1983
End Date: April 22, 1983
Sponsors: National Aeronautics and Space Administration
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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