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Using a simple device for the potentiometric determination of the direction of rotation
Potentiometric displacement transducers. Resistive divider potentiometer

   The simplest move converter is resistive divider potentiometer where a sliding contact or wiper moves along the resistive element (Fig. 1). The engine is mechanically connected to the sensing roller (pin), which follows the movements of the measurement object. When the voltage is applied to the resistor element, the voltage from the engine is tentsiometra, indicates the importance of movement.
   Linear and rotary angular displacement transducers, based on the principle of division of power, distributed widely enough. Angular transducers used to measure the angular displacement from a few degrees up to 7200 ° (ie, up to 20 revolutions of the disk), and the linear working range from a few millimeters to a few meters. These devices require electrical communication with the resistive-governmental elements by which their structure becomes too cumbersome and limit the scope of displacement in rotation. For example, Single Turn converter is used only to measure the displacement of 350 °.
   The form of the resistive element determines the resolution of the converter. When this element is made of wire, the resolution depends on the number of turns of wire per unit length of the element. In other types of transducers, based on the principle of division of power, used film of plastic, metal, carbon or metal-ceramic mixture (known as cermets) to create a resistive element that allows a theoretically infinite resolution.

Fig. 1. Using a simple device for the potentiometric determination of the direction of rotation
SENSORS OF PHYSICAL PARAMETERS