Six
state standard system
The six surface states that
the Sensice Ice detector
is able to discern are Dry,
Wet, Clear Ice, Snow, Sleet
and Wet Clear Ice. A four state
system is unable to tell snow
from clear ice and interpret
both as being icy, independent
of which form the ice is in.
It is neither able to tell wet
clear ice from sleet and interpret
both as the surface being covered
by a mix of ice and water.
Other
number of discernible surface
states
Two alternatives are available:
four or six separate discernible
surface states. With the larger
number of states a better estimate
of the friction coefficient
may be made, or alternatively
the user may select to switch
off skidding alerts e.g. when
a surface is covered by snow
which would be obvious without
the ice detector.
Four
state system
A four state system would be
approximately half the price
of a corresponding six state
system of otherwise identical
properties. If there is no drawback
for the user that the system
cannot tell a road surface covered
by snow from black ice, a four
state system is more cost effective.
If, however, it is necessary
or preferred with a more selective
system, a six state system should
be chosen.
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Permissible
layer thicknesses
The ice detector is designed
to be able to detect ice and
water layers within an interval
of layer thicknesses normally
occurring on a road surface
having an impact on friction.
Ice detectors may be designed
to detect thicker or thinner
layers upon request.
Product versions being able
to present actual layer thicknesses
for clear ice and water are
avaliable upon request. For
sleet, water and ice ratios
may also be presented to the
user upon request.
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| PC signal processing
software |
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