Radio LAN acquisition module (RLAM)
Subtitle: recent developments for high resolution data collection systems as implemented for the ONR sea ice mechanics experiment, spring 1994
By: by K. von der Heydt, C.F. Eck.
Contributors: Eck, C. F.; Woods Hole Oceanographic Institution.
Series: WHOI -- 95-09.; WHOI (Series) -- 95-09.
Publisher: Woods Hole Oceanographic Institution
Published: 1995
Place of publication: Woods Hole, Mass
Language: eng
Number of pages: 78
Subjects: Underwater acoustics -- Arctic regions.; Sea ice -- Arctic regions -- Remote sensing.
Description: During a recent experiment (April 1994), for the ONR Sea Ice Mechanics Initiative (SIMI), a portable data acquisition system was assembled that included 2 new developments. The first consists of a board, designed for the ISA PC bus incorporating 8 - 24 bit sigma-delta analog-to-digital converter (ADC) channels with 20 bit rms dynamic range. Among the features are programmable bandwidth to 1500 Hz, low power dissipation, digital anti-alias fietering, and a "floating point" mode resulting in a 16 bit word. Secondly, since the telemetry of data at continuous rates in excess of lOOK bytes/s was required, hardware & software were developed to use a wireless LAN to network 3 sites up to 5km distant from the data recording system. Details of the system along with test data are described.
Notes: "May 1995."

"Funding was provided by the Office of Naval Research under Contract No. N00014-91-J-1296."

Includes bibliographical references.

Also issued online.