Bosch C 60 - Page 117

117
 Online calibration of measurement channels
 Analog sensors drift with age, temperature, etc.
 Manual calibration is necessary
 Solution: online offset calibration
 Example: acceleration sensor
C 60 Online Measurement
Internal | BEG/EMS1 CsM | 6/4/2010 | © Bosch Engineering GmbH 2009. All rights reserved, also regarding any disposal, exploitation,
reproduction, editing, distribution, as well as in the event of applications for industrial property rights.
Motorsport
C 60 Online Measurement + Calibration
Sensor datasheet:
400mV/G
Offset 2500mV
U
IN
Acc
Due to sensor drift:
at 0G physical
U
IN
=2400mV
sensor output
U
IN
Acc
At 0G physical
0G measurement
Offset calibration