Magnetostrictive displacement transducer MPL

Due to its high resolution also when measuring long distances, linear displacement measurements up to 900 mm can be carried out. Conversions between rotatory and translation movements through ball screws, wire or cord connections and so on are not necessary for direct displacement measurement. Application fields include: —Electromagnets —Deformations - bending —Pneumatic cylinders —Length tolerances —Press-insertions (longitudinal press-fits) —Feed strokes —Machine hubs —Punch, knee lever or extruder distances —Hydraulic cylinders Due to the technology employed in potentiometric displacement sensors, they always operate with a sliding contact system. Special processes are applied to give the resistance tracks low friction, low tendency to stick/slip, resistance to abrasion and long-term stability. The rod is guided in a low-play floating frontal bearing. This absorbs small angular and parallel displacements.

The system RTP 8301.EO operates according to a combination principle consisting of a thru-beam sensor, an eddy current sensor and a measuring roller. The eddy current sensor and the thru-beam sensor are applied on an innovative measuring clamp. Since the sensor measures the distance from the clamp to the roller, the lower side of the material is detected. As the sensor performance is specially aligned with the measuring task a huge measuring gap is possible while offering highest precision. The thru-beam sensor detects the upper side of the material. The thickness of the target is the difference between the two signals. The measuring clamp is equipped with a pneumatically cleaning mechanism and therefore ideal for the application in harsh environment. The profilometer corresponds to the TIP 8301 regarding its functionality. However, it has a different operators´ frontend and evaluation functions.

With an extended measuring range up to 45mm, the new eddy current sensor series completes the product portfolio of eddylab GmbH and at the same time combines all advantages of a non-contact eddy current measuring principle: With wear-free distance and displacement measurement, eddy current sensors are characterized by highest precision and dynamics. The new T14/T20/T40 series can withstand extreme temperatures in a range of -40...+150 °C without any problems and is insensitive to external influences such as dirt and dust. The new sensors with measuring ranges between 14 mm and 45 mm are also extremely compact and robust. This makes them ideal for use in difficult industrial environments or vibration measurements with larger amplitudes. Together with the TX electronics from eddylab GmbH and the eddy current software eddyMOTION, measurement data can be analyzed, visualized, and documented.

Magtrol’s line of Displacement Transducers provide contactless measurement of absolute piston position in hydraulic and pneumatic cylinders and other applications. Their robust construction, large insensitivity to shocks and very long life (due to no moving parts and therefore no wear of components) make them both cost effective and very reliable. Magtrol transducers offer a wide range of operational temperatures and admissible pressure resistance for even the most demanding applications. The transducer provides a direct 4 - 20 mA output signal corresponding to the measuring range, as well as VDC temperature output. As an option Magtrol offers the CST 113 Signal Converter, which allows the complete chain to be calibrated according to the specific needs, either in current or voltage output. The DI Series of displacement transducers were developed principally for OEM applications in the hydraulic industry.