X9751115-A030094MSC
7
i
IMPORTANT!
The components are mat-
ched.
The allocation of the sensor
and the controller determi-
ned by the serial number.
System Description
2. System Description
2.1 Area of Application
The NLS3181 non-contact, compact displacement measuring systems are de-
signed for industrial applications to measure the movement of injection need-
les.
2.2 Measuring Principle
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 inter-
pretted by demodulation electronics which generate an electrical signal pro-
portional to the distance of the target from the sensor.
A patented electronic compensation technique reduces temperature-depen-
dent measuring errors to a minimum.
2.3 Structure of the Complete Measuring System
The NLS3181 non-contact single channel displacement measuring system
(Fig. 2.1) consists of:
-
Sensor LS04
-
Connecting cable C3/1
-
Signal conditioning electronics (controller)
built into a compact aluminium housing
-
Power supply and output cable PC3/4
Sensor
connection
Power supply
Signal output
Summary of Contents for NLS3181
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