Campbell Scientific CR23X Micrologger - Manual (Page 187)

SECTION 11. OUTPUT PROCESSING INSTRUCTIONS
11-7
09: 2 Option (AB)
A: Form 0 = closed, 1 = open
form
B: Output 0 = fraction, 1 =
counts
10: 4 Input location to start
storing histogram. Enter 0
to send output directly to
Final Storage.
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 = ((
Σ
X
i
2 - (
Σ
X
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