ETH Zurich, July 2006
Claudia [fclaudia@ee.ethz.ch] & Thomas [tother@ee.ethz.ch]
US
Mia nota:
Il materiale e' importante.
Ad esempio il pelo di gatto e' invisibile (stealth)!
The dynamic test revealed two weaknesses of the ultrasonic sensor. The first issue is that it showed some areas where the sensor tends to measure 255 cm instead of the actual distance. The second even more important issue is the critical area in between 25 cm and 50 cm where the sensor has a high probability of returning the wrong value of 48 cm.
Sensore di luce
Sensore pressione
The touch sensor has been examined towards the force needed to close the touch circuit. Adding weights to the vertical positioned sensor showed that at 34 grams the appears as touched. So in general a force of 0.33 newton must be exerted so the sensor is able to discern a contact.
Immagini oscilloscopio
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