PSN-L Email List Message

Subject: Re: Inexpensive Data Acquisition
From: John or Jan Lahr johnjan@........
Date: Thu, 05 Jun 2003 07:38:34 -0600

It's also nice that the Dataq unit works with Alan Jones' free AmaSeis 
This is an ideal starter system combination.


Alan tested and found that for a computer with USB but not serial ports,
a USB to serial port converter would work with the Dataq unit.


At 10:35 AM 6/4/2003, you wrote:
>Hi all, I went to the Dataq website, here is a link that will take you
>I don't want to deter anybody from existing solutions, but the little AD
>module they offer looks pretty good. And cheap.
>The low cost Data Acquisition starter kit, for $24.95 includes a small
>module with 4 channels, 10-bit ADC, max. +/-10VDC
>input range (makes scaling and math easy), "up to" 240 samples/sec., and 2
>digital inputs for start/stop/event bits. The interface is a Serial port,
>but it allows the DA unit to be powered by the serial port too, probably
>fast enough for seismic events. It includes the hardware/module, software
>(2 CD's) cable and even a screwdriver. It supports Win OS from Win95 to XP.
>There is a sizable online library of support for it including applications
>notes for various sensors or transducers.
>The 4 channels would allow you to conceivably have 2 separate sets of
>vertical and horizontal geosensors in different areas, although the module
>itself would have to be within (realistically) about 50 feet of your
>computer for serial data, plus the sensor wiring length.
>Looks like a good inexpensive way to get a seismic sensor mini-array up and
>running.      Tom Detweiler in Grass Valley
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