General Nformation; Calibration Data; Acceleration Computation - HBM FS65 Installation Manual

FS65
3.1.1

General nformation

Number 1 in Fig. 3.1 shows the general information on
the particular sensor, such as its type, the sensor part
number, its serial number and the production tracking
number, the FBG ID.
3.1.2

Calibration Data

The most important information related to the accelerom­
eter sensor – the two central wavelengths at room tem­
perature and sensitivity - is shown in the Calibration Data
table (number 2 in Fig. 3.1). These values should be
used for acceleration computation.
3.1.3

Acceleration Computation

Number 3 in Fig. 3.1 exemplifies the calculations that
should be performed for wavelength measurement to
acceleration conversion. The acceleration variation of an
Accelerometer, under a reference frequency, is given by
the quotient of wavelength shift from the zero moment by
the sensor's sensitivity.
acceleration + x S ´ acceleration
Fig. 3.2
Where
S x is the wavelength shift in nm
S S is the given sensitivity in nm/g
S CWL is the central wavelength of the sensor at the
zero moment in nm
S WL is the measured wavelength in nm.
A4265-2.3 HBM: public
Sensor Configuration
+ (WL * CWL) S
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