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Structure And Mode Of Operation - HBM T40B Montageanleitung

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4

Structure and mode of operation

The torque flange consists of two separate parts: the rotor and the stator. The
rotor comprises the measuring body and the signal transmission elements.
Strain gages (SGs) are installed on the measuring body. The rotor electronics
for transmitting the bridge excitation voltage and the measurement signal are
located centrally in the flange. The transmitter coils for contactless transmis­
sion of excitation voltage and measurement signal are located on the measur­
ing body's outer circumference. The signals are sent and received by a separa­
ble antenna ring. The antenna ring is mounted on a housing that contains the
electronics for voltage adaptation and the signal conditioning.
Connector plugs for the torque and rotational speed signals, the voltage supply
and digital output, are located on the stator. The antenna segments (the
antenna ring) must be mounted concentrically around the rotor (see chapter 5).
Stator
housing
Connect
or plugs
Fig. 4.1
Mechanical construction without a rotational speed measuring system
The rotational speed sensor is mounted on the stator in Option 6 with a rota­
tional speed measuring system. The rotational speed is measured magnetically
T40B
A03452_15_X00_01 HBM: public
Structure and mode of operation
Antenna
segments
Rotor
Type plate
Connect
or plugs
13

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