Micro-Epsilon launches ultra small position sensor for miniature hydraulic cylinders
Precision sensor manufacturer Micro-Epsilon has extended its range of pressure resistant position sensors for hydraulics and pneumatics applications to include a new 3mm diameter version for miniature hydraulic cylinders and actuators.
Compared to traditional methods of measuring displacement and piston position in hydraulic cylinders and valves, the company claims its EDS series of sensors is much more compact in both its length and diameter.
The devices utilise a non-ferrous aluminium outer sleeve as their target, which can be easily integrated into the piston rod. This enables the sensor body to be a solid rod rather than a traditional LDVT style with a hollow sensor body and plunger, making it easier for oems to assemble.
The sensors are manufactured from a pressure resistant stainless steel (up to 450bar) and are designed to withstand extreme vibration and shock levels (up to 300g axial and 100g radial). The sensor electronics and signal conditioning are completely integrated in the sensor flange using compact electronics.
This means that the hydraulic cylinder does not have to be increased in length to accommodate large electronics or have remote electronics, which can become awkward to match to the sensor once fitted into the hydraulic cylinder. Compared to an LDVT with similar measurement range, EDS sensors are said to be up to 50% shorter.
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