1. Noise issues – Potentiometer signal from the electronic card
RAW DATA
position measurements
using the output signal from the
electronic card IN
OUT1
OUT2
measurements

2. Noise issues – Potentiometer signal from the electronic card
measurements

3. Noise issues – Potentiometer signal from the electronic card
measurements

4. Noise issues – Potentiometer signal from the electronic card
measurements

5. Noise issues – Potentiometer signal from the electronic card
measurements

6. Noise issues – Potentiometer signal from the potentiometer
RAW DATA
position measurements
using the output signal from the
potentiometer with a differential
probe IN
OUT1
OUT2
measurements

7. Noise issues – Potentiometer signal from the potentiometer
measurements

8. Noise issues – Potentiometer signal from the potentiometer
measurements

9. Noise issues – Potentiometer signal from the potentiometer
measurements

10. Noise issues – Potentiometer signal from the potentiometer
measurements

11. Noise issues
signal from the electronic card have less noise than the signal taken directly on the potentiometer
from electronic card
from potentiometer
measurements

12. Signal from the electronic card
Filter strategies, signal from the electronic card – Stop filters + low pass FFT filter
Signal from the electronic card
before filter
Filter 50Hz, 150Hz, Hz
on the signal from the electronic
card
after filter
measurements

13. position measurements using the output signal from the electronic card
Filter strategies, signal from the electronic card – Cumulating profiles -> mean
RAW DATA
position measurements
using the output signal from the
electronic card
blue 10 profiles
red mean of 10 profiles IN
OUT1
OUT2
measurements

14. Filter strategies signal from the electronic card – Cumulating profiles -> mean
measurements

15. Filter strategies, signal from the electronic card – Cumulating profiles -> mean
measurements

16. Filter strategies, signal from the electronic card – Cumulating profiles -> mean
measurements

17. Filter strategies, signal from the electronic card – Cumulating profiles -> mean
measurements

18. FFT, results comparison
Filter strategies, signal from the electronic card – Cumulating profiles -> mean
10 profiles
FFT, results comparison
one single profile
measurements

19. derivative of the position after FFT low pass filter 170 Hz
Filter strategies, signal from the electronic card – Cumulating profiles -> mean
10 profiles
derivative of the position
after FFT low pass filter 170 Hz
one single profile
measurements

20. derivative of the position after Butter low pass filter 170 Hz
Filter strategies, signal from the electronic card – Cumulating profiles -> mean
10 profiles
derivative of the position
after Butter low pass filter 170 Hz
one single profile
measurements