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02:
2
4
4
4l
41
FP]
FP
FP
2
01:
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o4:
05:
06:
07:
08:
09:
10:
More
than
ofre
Rainflow Histogram can be
calculated u$ing the Repetitions
parameter.
The
swath
of
inpirt data,
the
size of
the
mean
and
amplitude difnensions, the low and
high limits of
the input datla, and
minimum
distance
between
peaks
and v6lley are all selectable
by the
user
with
paramelers.
Data
are output
to
Final
Storage
or to
Input
Storage for further
processing
when the
datalogger's Output
Flag
is set.
Partial
accumulatiofrs are
kept
in
Intermediate
Storage.
PAR. DATA
NO. TYPE DESCRIPTION
Repetitions
Input
location
of input data
Swath
(per
rep) of data at input
location; 1
=
oh
line
processing
No.
of Mean bins
No. of Amplitude bins
Low limit
of
input data
High limit
of
input data
Minimum
distance
between
peak
and
valley
Option
(AB)
A: Form
0
=
closed,
1
=
open form
B: Output
0
=
fraction,
1
=
counts
Input
location
to start
storing
histogram. Enter 0 to send
output directly to
Final Storage.
SECTION
11.
OUTPUT
PROCESSING
INSTRUCTIONS
***
82 STANDARD DEVIATION
IN TIME
***
FUNCTION
Calculate the standard deviation
(STD
DEV)
of a
given
input
location.
The standard
deviation
is
calculated using the
formula:
s
=
((EXi2
-
(>Xi)2/N)iN)1/2
where X; is the ith
measurement
and
N
is the
number
of samples.
PAR.
DATA
NO.
TYPE
DESCRIPTION
2 Repetitions
4
Starting input
location no.
Outputs
generated:
1 for each
repetition
Execution tidne: 6.5
-
7.0 msec,
with 60
Amplitude
{ns
and 1
Mean Bin.
Intermediat( Storage
locations
required: Reps x
(Bins+2
x
(No.Amplitude
Bins)
+ 4), where
Bins
=
No.
Meanf
Bins x No. Amplitude
Bins.
11-7
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