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82 standard deviation in time – Campbell Scientific CR10X Measurement and Control System User Manual

Page 182

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SECTION 11. OUTPUT PROCESSING INSTRUCTIONS

11-8

Execution time: 6.5 - 7.0 ms, with 60 Amplitude
Bins and one Mean Bin.

Intermediate Storage locations required: Reps
x (Bins+2 x [No. of Amplitude Bins] + 4), where
Bins = No. Mean Bins x No. Amplitude Bins.

Outputs Generated:

No. Mean Bins x No.

Amplitude Bins x Reps

*** 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 = ((

ΣX

i

2

- (

ΣX

i

)

2

/N)/N)1/2

where X

i

is the ith measurement and N is the

number of samples.

PARAM.

DATA

NUMBER

TYPE

DESCRIPTION

01:

2

Repetitions

02:

4

Starting input location no.

Outputs Generated:

1 per repetition