Linear potentiometer - SPR18

If there is axial misalignment (eccentricity) between the drive shaft and the shaft of a potentiometer used to sense angular, motion, this will cause a linearity error that increases as the coupling radius decreases in relation to the degree of eccentricity. The following equation determines the maximum relative error Fmax = E/Pi · rk where E = Eccentricity und rk = the coupling radius. It is only possible to take full advantage of the linearity or conformity of any rotationary sensor system, if coupling alignment errors (offset and angular misalignment) are avoided or at least reduced to a mimimum. This means that with highly accurate measurement systems, due allowance must be made for any coupling misalingment in accordance with the above equation.

Solid shaft Ø 4 mm or Ø 6 mm. Adaptation to various measurement distances owing to a wide range of gear ratios. Integrated slip clutch to protect the potentiometer. Compact design. Potentiometer, power or voltage output. IP65 protection category.

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