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Electrical connection
6
Electrical connection
WI series inductive miniature displacement transducers are intended to be
operated on 4.8 kHz carrier‐frequency amplifiers. The principle of
measurement corresponds to the differential inductance coil principle.
The principle of measurement is based on an active half bridge that is
expanded internally to a full bridge connection. The displacement transducers
can be used in full‐bridge and half‐bridge mode.
The connections for transducers, a possible cable extension and measuring
amplifiers are shown in Fig. 6.1.
)
0
1)
When used in full bridge connection, otherwise not used
Fig. 6.1
Electrical schematic diagram of a full bridge, six‐wire extension
Connecting to terminals:
S The shield can be accessed through a notch in the cable sheath
S Place the shield flat on the body of the casing.
Fitting to a connector:
S Place the shield flat on the connector the casing.
The bridge misalignment is positive when the core is pushed inward.
The bridge misalignment is negative when the core is pushed outward. The
output voltage is zero in the middle of the measuring range.
8
WH (white)
BU (blue)
GN (green)
RD (red)
BK (black)
GY (gray)
Cable shield
A01028_05_Y00_01 HBM: public
Measurement signal ())
Excitation voltage (+)
Sensor circuit (+)
1)
Measurement signal (-)
Excitation voltage (-)
Sensor circuit (-)
Transducer housing
WI
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