5 Design, system overview and function
29
The Sonic-Ski
®
plus
SKIS-1500
is a distance measurement
sensor and operates with five ultrasonic sensors. A sixth
sensor is used for temperature compensation.
On sensing the ground, a mean value is formed from the
values measured by the five ultrasonic sensors of the Sonic-
Ski
plus.
In the case of cable sensing, the Sonic-Ski
plus is not only
able to measure the distance from the reference, but can
additionally detect the position of the cable or an edge
beneath the sensor heads over its entire working width of
approx. 25 cm.
25 cm
Conventional
simple sensing
Mean value formation
by the Sonic-Ski
®
Direction of
travel
Resulting road surface
Resulting road surface