Annex
9327C_002-477e-05.10
Page
39
Disturbance
Forces, moments and environmental influences acting on
the sensor such as the temperature, which the sensor does
not measure as a measurand and which produce an output
signal (error). Example: when an additional bending mo-
ment acts on a force sensor.
Drift
Unwanted changes in the output signal independent of the
measurand as a function of time.
Frequency range
see Annex 10.4.
FSO
Full Scale Output. Difference in output signal between the
zero and end points of the measuring range
Ground insulation
Electrical resistance of a sensor between signal line and
ground, or of a charge amplifier between connector
shielded and ground.
Hysteresis
see Annex 10.3.
Insulation resistance
Electrical resistance of a sensor, cable or the input of a
charge amplifier, measured between signal line and ground
connection.
Linearity
see Annex 10.3.
Measurand
Physical quantity, state or characteristic which is measured,
e.g. force, torque etc.
Measuring chain
Interconnection of several individual components to meet
measuring requirements. Measuring chains usually consist
of sensors and amplifiers in conjunction with data acquisi-
tion, display, evaluation and recording equipment such as
PC or printer.
Measuring range, charge amplifier
Charge, voltage or current range of the signal input. Entry
in units of the measurand is also possible depending on the
type of charge amplifier.
Measuring range, sensor
Range in which the quality of the measurement within the
stated tolerances is guaranteed. This range must be re-
garded as a binding maximum range.
Natural frequency
Frequency of free (not forced) oscillations of the entire
sensor. In practice the (usually lower) natural frequency of
the entire mounting structure governs the frequency
behavior, see also Annex 10.4.
Operating temperature
Range of ambient temperatures in which the sensor is to
be operated. The temperature-dependent tolerances
stated apply only within this range. Higher temperatures
can cause irreversible damage to the sensor.
Output signal
see "Charge signal"
