Eowave Eobody1 - Manual (Page 21)

21
manual ©eowave/Ircam 2003
user’s manual • Appendix 1 / Maximal voltage range
Appendices
0 Analogue signals
3V
5V 1023
Dead areas
Digital
value Reference
voltage
1 - Maximal Voltage Range for global scaling
The trimmer position enables to set the maximal analogue voltage before conversion to digi-
tal. It means that analogue signal from 0 to 5 Volts will be converted into digital values from
0 to 1024. Some sensors may have a range from 0 to 4 Volts. To get the maximal digital
range, the trimmer should be adjusted to 4 Volts. Note that voltage references value below
2.5V may increase sensitivity to noise.
5V
2,5V
1023
512
Range
Analogue
signal Digital
value
t 0
Signal 1
Signal 2
When the Maximal Voltage Range is set under the maximal voltage from the sensor, the
signal may clip and some information may be lost. Always ensure that the reference voltage
is set to the maximum range of the connected sensors.
maximum range of the signals