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DATA
ACQUISITION WITH GPS TIME STAMPING
The PAR4CH and PARGPS
modules form a low-cost data acquisition system that offers
multichannel, 24-bit A/D conversion and the accurate GPS
time stamping of data. The PAR4CH is a four-channel, 24-bit
ADC with a converter-per-channel architecture. Crosstalk
and settling problems commonly associated with multiplexed
systems are eliminated with a dedicated ADC chip for each
channel. Connecting to a standard PC parallel port, the
PAR4CH also includes a large 2-MB buffer to insure against
data loss. Continuous acquisition rates are user programmable
from 0.1 Hz to 5 kHz. One- and eight-channel modules are
also available.
If you need the accurate time
stamping of acquired data, the PARGPS timing module is available.
This module easily connects to the PAR4CH and PC and provides
10-µs accuracy time stamping along with other GPS parameters
such as location and satellite count. The PARGPS connects
to the digital I/O connector on the PAR4CH.
The modules are offered in
rugged, compact, vinyl-covered steel desktop enclosures
suitable for general applications. Bare boards are also
available if you want to integrate the systems in their
own applications.
Included with each system is
extensive software support featuring both GUI and console-mode
applications, which enables immediate data acquisition.
Source code and user libraries are also included for custom
development. The supplied software drivers, which are available
for Windows 2000/XP and Linux, use true ring-0 kernel mode
drivers for top performance. The PAR4CH and PARGPS cost
$550 and $400, respectively.
Symmetric Research
(702) 341-9325
www.symres.com
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