Potentiometer Voltage Calculation
This solution explains the calculation of output voltage for a wire-wound angle sensor potentiometer.
Potentiometer Parameters
- Total Turns: 72
- Voltage Range: 0 V (Ground) to 3.6 V
- Total Voltage Swing: $3.6 \text{ V}$
- Wiper Position: On turns 35 and 36
Voltage Resolution Calculation
The voltage is distributed uniformly across all turns. The voltage change per turn ($V_{per\_turn}$) is:
$V_{per\_turn} = \frac{3.6 \text{ V}}{72 \text{ turns}} = 0.05 \text{ V/turn}$
Wiper Position Determination
The wiper spans turns 35 and 36. The effective position is the average turn number:
$Effective\_turn = \frac{35 + 36}{2} = 35.5$
Final Output Voltage
Calculate the output voltage ($V_{out}$) using the effective turn position:
$V_{out} = Effective\_turn \times V_{per\_turn}$
$V_{out} = 35.5 \times 0.05 \text{ V} = 1.775 \text{ V}$
Rounded to two decimal places, the output voltage is 1.78 V.
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