Conductive plastic potentiometer - MP20/21

When, some 60 years ago conductive plastic potentiometers were first introduced onto the market, it was apparent that although the winding jumps which were a feature of wire-wound potentiometers had been overcome, absolute smoothness of the output voltage could not be achieved. Following some basic reserach by. h. Wormser 4, 5, 6 , the term "smoothness" was included in the standard issued by the Variable Resistive Compontents Institute (VRCI). Although this definition was adequate at that time it cannot serve as a system definition for many applications. This is because it is now possible to produce potentiometers with appreciably better smoothness and linearity values. For this reason, Novotechnik has sought over the past years to develop definitions better suited to the current state fo the art. The various methods used are discussed and evalutated below.

Through hollow shaft Ø 14 mm. Adaptation to various measurement distances owing to a wide range of gear ratios. Compact, low-cost design. Potentiometer or power output. Easy mounting.

Displacement sensors models 8710 and 8711 with resistance tracks made of conductive plastic material are designed for a direct and accurate measuring of mechanical displacements. A special ball joint coupling is mountable on both ends of the driving rod. Because of this the sensor may be used free of clearance or lateral forces also with angular or parallel misalignment between sensor and measuring device. A special multi-fingered slider provides a good electrical contact also at high adjustment speeds or vibrations. Areas of application are: —Electromagnets —Switch and button deflections —Pneumatic cylinders —Press-fits (longitudinal press-fits) —Hydraulic cylinders —Measurements of deformation and bending —Length tolerances —Feeding paths Due to the technology employed in potentiometric displacement sensors, they always operate with a sliding contact system.

The ADI Digital Potentiometer AD5254BRUZ10 is a 10k ohm, 20-pin TSSOP device that provides a digitally controlled variable resistor. It is designed to operate over a temperature range of -40°C to 105°C and has a tolerance of ±30%. It is an I2C device and can be used to adjust the resistance of a circuit in a wide range of applications. Features: • 10k ohm resistance • 20-pin TSSOP package • Operating temperature range of -40°C to 105°C • ±30% tolerance • I2C interface Applications: The ADI Digital Potentiometer AD5254BRUZ10 can be used in a wide range of applications, including: • Adjusting the gain of amplifiers • Adjusting the brightness of LED displays • Adjusting the speed of motors • Adjusting the frequency of oscillators • Adjusting the sensitivity of sensors