The
Microstar II is designed to offer measurements of vehicle dynamics parameters
such as driving performance, longitudinal determinations, fuel consumption and
off-road vehicle speed and distance measurements on jeeps, quads and ATVs, as
well as industrial utility, military transport and agricultural vehicles.
The
design of the Corrsys-Datron Microstar II incorporates use of
Doppler radar effect technology within a planar antenna system, which projects
two radar beams at 45 degree angles to measure relative movement between the
sensor and test surface. The non-contact system consists of the sensor
head antenna and a new Corrsys-Datron sensor electronics unit with 2.0B CANbus,
RS-232 serial port and a full-speed USB 2.0 port. Upon striking the test
surface, beams are reflected back to the sensor antenna. The resultant double
frequency, which is equal to the difference of sent and received frequencies,
is directly proportional to speed. The gained signal is then converted to
desired dimension via a high-performance onboard RISC digital signal processor
and sent to corresponding analog (-10 to 10 V) or digital (1 to 1,000 Pulse/m)
TTL outputs, with automatic compensation for both mounting and pitch-angle
errors.
With
a working distance range of 300 to 1200 mm and a speed range of 0.5 to 400 km/h
at a measurement frequency of 250 Hz, the Microstar II can be used in utility
and off-road vehicle applications requiring larger stand-off distances. It can
also be used within more challenging environmental conditions, such as in
wooded, mountainous or other heavy terrain areas, where use of traditional GPS
and optical sensing technologies are simply not possible. The sensor can also
accommodate additional connections, such as an interface for fuel
flow-measurement systems (for fuel consumption tests) and trigger inputs for
light barriers or brake switches.
When
used with supplied CeCalWin Pro Software, the Microstar II functions as a
complete vehicle data acquisition and evaluation system. Associated software
functions enable test parameters and definitions to be permanently saved, along
with charts, plots and other online displays and evaluations. In addition, all
measured signals can be saved and evaluated off-line.
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