3. Product Description
3.1.3 Operation
Figure 2: Centre of the measuring range
1
Measuring range
The position of the sensor is selected so that the measuring range of the sensor
measures a defined strain of the structure. See Fig. 2: Centre of the measuring range,
page 13.
The surface of the structure is prepared so that the surface is flat, dust-free and dry.
The sensor is then glued to the structure with ergo. 1665 or UHU PLUS BLACK.
The sensor is connected to a compatible measuring device.
The wavelength of the sensor can then be used to determine the strain of the
structure. See Calculation of strain, page 13.
3.1.4 Calculation of strain
The strain is calculated on the basis of the measured wavelength difference as follows:
(ε: Strain; k
ε
: k-factor; λ: current wavelength; λ
0
: rest wavelength)
© fos4X 2019 4-10_1.3.x_4.0_fos4Strain expert-en-us 13 / 42
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