LLI has designed and built the first in a series of products
that will combine mass storage with high-resolution analog-to-digital
conversion. These products can serve as stand-alone
remote data logging systems or as conventional computer-based
data acquisition systems, or somewhere in between. With LCD
display and Keypad options, the system can function as a
portable voltmeter or thermometer or other portable instrument
with appropriate sensors connected. At the other extreme,
these systems can be built into a bench instrument with only
a computer for access. The system can provide analog
acquisition, digital I/O and analog output control
functions while archiving up to 1 Gigabyte of data on
CompactFlashTM.
The fundamental functional blocks are the core CPU, the
CompactFlashTM slot,
the high resolution A/D converter, and a
TCP/IP or RS-232 computer interface. Optional plug-in modules
will include LCD display, keypad, signal conditioning, and
battery power pack.
The second device in this series is an audio recorder that
could also be useful as a data acquisition system. The
effective resolution is 20 bits and the data rate is up to
48 KHz for two channels. The low frequency response has
been extended beyond the normal audio range down to 5 Hz.
Because CompactFlashTM
demands surface-mount technology,
these new systems will be smaller and lighter than our
previous product offerings. The core processor is powerful
and relatively easy to program, so we can customize quickly
for specialized purposes. Please contact the factory for
more information about specific applications, as well as
for pricing and availability.
