Measurement Averaging; Introduction; Moving Average - MICRO-EPSILON capaNCDT 6240 Operating Instructions Manual

Operation
5.4

Measurement Averaging

5.4.1

Introduction

Measurement averaging is performed before the output of measuring values via the Ethernet interfaces.
Measurement averaging improves the resolution, allows masking individual interference points or "smoothes" the reading.
i
Linearity is not affected by averaging. Averaging has no effect on measuring frequency and output rate.
The controller is delivered ex factory without measurement averaging.
5.4.2

Moving Average

The definable number N for successive measurements (window width) is used to calculate the arithmetic average M
the following formula:
N
∑
MV (k)
k=1
M =
mov
N
Fig. 23 Formula for the moving average
Method
Each new measured value is added, and the first (oldest) value is removed from the averaging.
Example with N = 7:
capaNCDT 6240
MV = Measuring value
N = Number
k = Continuous index
M = Average value
mov
according to
mov
Page 49