WOLFRAM SYSTEM MODELER

ThumbwheelPotentiometer

Potentiometer controlled by a thumbwheel

Diagram

Wolfram Language

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SystemModel["EducationExamples.ElectricalEngineering.Potentiometers.Components.ThumbwheelPotentiometer"]

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Information

Potentiometer controlled by a thumbwheel. The model consists of two variable resistors, to total resistance of which equal the parameter maxRes. When the thumbhweel is turned all the way to the left, almost all of the total resistance will be present between the right resistor and the wiper pin. This model represents a potentiometer where the wiper pin is slided along a material whose resistance is lineraly proportional to its length. By turning the thumbwheel to the right, the distance between the positive pin and the wiper becomes larger and the resistance between them increases lineraly.

Parameters (4)

minAngle	Value: 0 Type: Angle (rad) Description: Minimum angle for the thumbwheel
maxAngle	Value: 3.14159265358979 Type: Angle (rad) Description: Maximum angle for the thumbwheel
minRes	Value: 10 Type: Resistance (Ω) Description: Minimum resistance for the potentiometer
maxRes	Value: 1000 Type: Resistance (Ω) Description: Maximum resistance for the potentiometer

Connectors (4)

	p	Type: PositivePin Description: Positive electrical pin
	n	Type: NegativePin Description: Negative electrical pin
	wiper_pin	Type: Pin Description: Potentiometer wiper terminal.
	flange_a	Type: Flange_a Description: One-dimensional rotational flange of a shaft (filled circle icon)

Components (13)

	R1	Type: VariableResistor Description: Resistance between positive pin and wiper.
	R2	Type: VariableResistor Description: Resistance between negative pin and wiper.
	R2T	Type: IdealGearR2T Description: Converter of angle to translational position.
	stop	Type: MassWithStopAndFriction Description: Boundry of the thumbwheel.
	pos	Type: PositionSensor Description: Position sensor of the thumbwheel.
	minPhi	Type: Constant Description: Constant signal with minimum angle.
	p_add	Type: Add Description: Position map to resistance.
	n_add	Type: Add Description: Position map to resistance.
	minAdd	Type: Add Description: Minimum position compared to potentiometer position.
	maxAdd	Type: Add Description: Maximum position compared to potentiometer position.
	maxPhi	Type: Constant Description: Constant signal with maximum angle.
	minResistance	Type: Constant Description: Constant signal with minimum resistance.
	springDamper1	Type: SpringDamper Description: Linear 1D rotational spring and damper in parallel