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SAR Rails and Portable RotatorsSPC has designed and constructed a
number of special purpose rails to support customer requirements. Below
are descriptions of some of these projects.
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The PPIRCS rail is capable of 18.5 feet of linear travel, +/-60
degrees of azimuth travel and +/-10 degrees of elevation travel. The
rail base is constructed of composite material and is designed to be
moved with either a specialized positioner (area position, height,
tilt) or a simple fork lift (area position, height). Motion along
the rail in all axes is controlled with a PMAC controller. Spotlight
illumination can be accomplished. |
| The DIR rail was designed to provide 18 feet of
linear travel, 8 feet of height adjustment, and +4/-1 degrees of
elevation travel. Height control is accomplished on the carriage.
The entire positioner can be rolled along a track, using motorized
assist, to any of three designated azimuth positions. All motion is
controlled via PMAC. |
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The BAE Systems rail was designed to accomplish 32 feet of
linear travel but to be stowed with a length of only 15 feet. This
was accomplished using three automatically telescoping sections that
deploy as the carriage moves along its designated path. The carriage
provides +/-60 degrees of azimuth travel and +/-30 degrees of
elevation travel that can be controlled for spotlight illumination.
The rail system can be attached to a special purpose Hubtex fork
truck that is capable of omnidirectional area motion (either manual,
programmed or wire guided) and can lift the rail to a height of 7m.
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| The Low Profile Rotator (LPR) was developed for use
in environments where a tall rotator is simply not practical. An LPR
is currently used in SPC's indoor range which does
not have a pit for a recessed ISAR rotator. The LPR is 28" in
diameter by 6.5" tall, can produce 250 in-lbs of torque, and has a
maximum speed of 35 RPM. It can support loads up to 200 lbs and has
no rotation limits. The rotator is controlled via PMAC. |
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A light-duty, inexpensive rotator/linear rail pair has been
developed for indoor
range use. A single PMAC-based motion control system controls
both units. By placing the target on the rotator and the antenna on
the vertically-oriented rail, 3-D imaging can be performed with the
MkV. The rail is 36"
long and can be mounted either vertically or horizontally on a
standard tripod. The rotator is 8" in diameter and 4" tall. With a
sheet-metal base and a wooden column mount, the dimensions are
increased to 28" in diameter by 6" tall.
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