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10 | Analog and Frequency Inputs
10.8.3 Configuring a generic non-linear sensor
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The channel is inserted into the C 60 Project Tree.
Available measurements for channel:
Measurement label
raw_name
raw_name_fi
name
name_fi
Example: Thermistor 5 kOhm
– From sensor data sheet: resistance values over temperature
– The sensor has a nonlinear behaviour
– Use characteristic curve for linearization
– Input voltage is the ratio between pull-up resistor and thermistor
+5V
Pin
3 kOhm
1.
Click 'Measurement Sources' in the Toolbox.
2.
Expand the list of 'I/O Channels' by clicking on '+' in the C 60 Project Tree.
3.
Drag the 'Characteristic Curve' analogue signal source from the Toolbox and drop it
on the desired analogue input channel in the C 60 Project Tree. A 'Characteristic
Curve Wizard' opens.
4.
To activate the internal pull up-resistor, check the box.
The C 60 pull up-resistor is used to get a 5V signal at the analogue channel of the C
60.
It allows you to use a push-button.
The fixed value of the internal pull up-resistor is 3010 Ohm. If using an additional ex-
ternal pull up-resistor, set up the overall resistance.
Data Logger C 60
Function
mV value of sensor
filtered mV value of sensor
physical value of sensor
filtered physical value
Thermistor
Bosch Motorsport
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