Annex
9173B_002-286e-07.10
Page
41
Temperature gradient error (dynamic error)
A temporary change in the output signal is denoted as
temperature gradient error, when the temperature of the
environment or surrounding medium changes with a cer-
tain rate. In this case, the sensor is not in thermal equilib-
rium with the environment.
The temperature gradient error is primarily determined by
the installation conditions and the application, and cannot
be generally specified. However, the temperature gradient
error can be significant, particularly in the case of sensitive
measurements and small measured values. It is therefore
extremely important to keep the sensor temperature con-
stant during the actual measuring time.
Fig. 18: Example of a temperature error of the output
signal zero for a temperature rise from 150 °C to
200 °C (immersion bath).
Temperature coefficient of sensitivity
Change in the sensitivity, i.e. the slope of the best straight
line, as a function of temperature. The temperature distri-
bution in the sensor is assumed to be homogeneous, and in
thermal equilibrium with the environment. The tempera-
ture coefficient of the sensitivity is typically only approx.
0,02 %/°C, and is thus mostly negligible compared with
other influences.
Sensor
Temperature
Temp
erature [°C]
Tauchbadfehler 150....200°C
0
2
4
6
8
Zeit [Min.]
A
us
ga
ngs
si
gna
l
50
100
150
200
Te
m
pe
ra
tur
[
°C
]
Sensor
Temperatur
Immersion Bath Error 150 ... 200 °C
Output signal
Temp
erature [°C]
Time [Min.]
Sensor
Temperature
Temperature error of the
zero point (static error)
Temperature gradient error
(dynamic error)
Summary of Contents for 9173B
Page 1: ...Instruction Manual SlimLine Force Sensor Type 9173B to 9177B 9173B_002 286e 07 10...
Page 2: ...Instruction Manual SlimLine Force Sensor Type 9173B to 9177B 9173B_002 286e 07 10...
Page 27: ...Calibration and Maintenance 9173B_002 286e 07 10 Page 25 Fig 12 In situ calibration procedure...
