System Description; Area Of Application; Measuring Principle - MICRO-EPSILON NLS3181 Betriebsanleitung

System Description

2.
2.1
The NLS3181 non-contact, compact displacement measuring systems are designed for industrial applica-
tions to measure the movement of injection needles.
2.2
The NLS3181 displacement measuring system operates without contact using eddy current technology. It is
used for making measurements on targets made of ferromagnetic electrically conductive materials.
High-frequency alternating current flows through a coil cast in a sensor casing. The electromagnetic coil field
induces eddy currents in the conductive target thus changing the ac resistance of the coil. This change in
impedance is interpreted by demodulation electronics which generate an electrical signal proportional to the
distance of the target from the sensor.
A patented electronic compensation technique reduces temperature-dependent measuring errors to a mini-
mum.
NLS3181
System Description

Area of Application

Measuring Principle

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