Bosch C 60 Manual page 88

C 60 Analog and Frequency Inputs
Analog Inputs – Digital Filter Details
Linear phase – no signal distortion

10000Hz Abtastrate
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
0 500 1000 1500 2000
Abtastwerte (roh)
Sensor signal with noise
Latency compensation – no filter delay in recorded data

Filtering is (smart) averaging over several samples

Filtered signal is delayed with respect to real time signal

C 60 filters have constant, frequency independent delay

Delay (e.g. 22 samples @ 10ms) is corrected during recording

No delay filtered vs. unfiltered in recorded data

Correction is (of course) not possible for real time data (display, online, PWM out)

Use filtered data for recording, use unfiltered data for realtime

Motorsport
88
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.
1.5
1
0.5
0
-0.5
-1
-1.5
0
1.5
2500 3000
1
0.5
0
-0.5
-1
-1.5
0
100Hz Abtastrate
Recorded signal 100Hz
(unfiltered)
5 10 15 20 25 30
Abtastwerte (dezimiert)
100Hz Abtastrate
Recorded signal 100Hz
(filtered)
5 10 15 20 25 30
Abtastwerte (gefiltert)