MICRO-EPSILON ILD1700-2 - Moving Average (Default Setting)

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Operation
optoNCDT 1700
6.6.2 Moving Average (Default Setting)
The selected number N of successive measurement values (window width) is used to generate the arithmetic
average value M
gl
on the basis of the following formula:
MV (k)
k=1
N
N
M =
gl
MV = Measuring value
N = Averaging number
k = Running index
M
gl
= Averaging value respectively output value
Mode:
Each new measurement value is added and the first (oldest) measurement value from the averaging process
(from the window) taken out again. This results in short transient recovery times for jumps in measurement
values.
Example: N = 4
... 0, 1, 2, 2, 1, 3
2, 2, 1, 3
4
= M (n)
gl
... 1, 2, 2, 1, 3, 4
2, 1, 3, 4
4
= M (n+1)
gl
Measurement value
Output value
Standard values for N: The values N = 1, 4, 32, 128 are permanently stored in the sensor. For other
permissible values for N, see Chap. 8.5.4.
Characteristics:
The sliding average in the optoNCDT1700 can only be generated for up to a maximum of 128 values.