Specifications and Regulatory Information
Fiber length quantities (these are: distance range, fiber length,
spatial resolution) are measured along the fiber. If the fiber is
wound within a cable, a corresponding factor must be considered
to transform from fiber length to cable length.
Temperature repeatability (standard deviation)
Specifies the variation of the measured temperature A
i
in
repeated measurements i at the same location within the sensing
fiber under constant conditions. Temperature repeatability
(standard deviation) T
Rep
is calculated as:
T
Rep
= StDev
i
{ A
i
}
“StDev
i
{}” denotes the standard deviation over index i (over a
sufficiently large sample base).
Temperature repeatability includes the effects from channel
switching between repetitions.
Conditions: Constant properties of the sensing fiber, same
temperature distribution within the sensing fiber
between
repetitions. Other parameters and conditions as specified.
Temperature repeatability throughout operating
temperature range (standard deviation)
Same as “Temperature repeatability (standard deviation)”, but
with the ambient temperature being allowed to change over
repetitions. The statistics (standard deviation) is based on an
ambient temperature evenly distributed over the
temperature range over repetitions i.
Conditions: same as for “Temperature repeatability
deviation)”.
The Protectowire Company, Inc.
FIBERSYSTEM 8000 - Linear Heat
Series
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