MICRO-EPSILON combiSENSOR KSB6430-PROFINET Operating Instructions Manual page 10

Functional Principle, Options, Technical Data
A
T
T<A
Insulator (
Fig. 2 Measurement arrangement for thickness measurement
The thickness of the insulator is calculated from the factors: Max. working distance, capacitive displacement measuring signal A and
the dielectric constant of the insulator:
T = S (eddy) - A (capa) *
combiSENSOR KSB6430 PROFINET
Sensor
)
Target
r
Ground electrode

WD
r
* + Offset

1 100 %

r
T Thickness measuring object [µm]
S Signal eddy current sensor [%]
A Signal capacitive sensor [%]
e
Dielectric constant film (insulator)
r
WD Max. Working distance sensor [µm]
Offset Constant [µm], standard value = 0
Page 10