VIBRATION PATTERN IMAGER

The Vibration Pattern Imager (VPI) system was designed to control and
acquire data from laser vibrometer sensors. The PC computer based system
uses a digital signal processing (DSP) board and an analog I/O board to
control the sensor and to process the data. The VPI system was originally
developed for use with the Ometron VPI Sensor (Ometron Limited, Kelvin
House, Worsley Bridge Road, London, SE26 5BX, England), but can be readily
adapted to any commercially available sensor which provides an analog
output signal and requires analog inputs for control of mirror
positioning. VPI's graphical user interface allows the operation of the
program to be controlled interactively through keyboard and mouse-selected
menu options.

VPI is written in C language and Texas Instruments' TMS320C30 assembly
language for IBM PC series and compatible computers running MS-DOS. The
program requires a Four Channel analog I/O board (Spectrum Signal
Processing, Inc.; Westborough, MA), a break-out box and a Spirit-30 board
(Sonitech International, Inc.; Wellesley, MA) which includes a TMS320C30
DSP processor, 256Kb zero wait state SRAM, and a daughter board with 8Mb
one wait state DRAM. Please contact COSMIC for additional information on
required hardware and software. A sample MS-DOS executable is provided on
the distribution medium. The standard distribution medium for this program
is one 5.25 inch 360K MS-DOS format diskette.

NASA's Software Technology Transfer Center
COSMIC, The University of Georgia
382 East Broad St, Athens, GA 30602-4272
(706) 542-3265;  Fax: (706) 542-4807
Internet Email: service@cossack.cosmic.uga.edu

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