Structure And Mode Of Operation - HBM T10FS Mounting Instructions

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Structure and mode of operation

Torque flanges consist of two separate parts: the rotor and the stator. The rotor
comprises the measuring body and the signal transmission elements.
Strain gages (S.G.) are mounted 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 the non contact
transmission of excitation voltage and measurement signal are located on the
measuring body's outer circumference. The signals are sent and received by a
separable antenna ring. The antenna ring is mounted on a housing that
includes the electronic system for voltage adaptation and signal conditioning.
The connector for the torque signal, the voltage supply and the speed signal
(option) are located on the stator. The antenna ring should be mounted more or
less concentrically around the rotor (see chapter 4).
A magnetic or optical sensor performs the speed measurement. With a
magnetic measuring system, a magnetized rotor is sampled by means of a
magnetoresistive sensor (MR).
The optical sensor works on the infrared transmitted light barrier principle. The
reference pulse is generated by a magnet in the slotted disc and a
magnetoresistive sensor. In the case of option2 (speed measuring system),
code L, the speed sensor is mounted on the stator, the customer attaches the
associated slotted disc on the rotor. In the case of code H, the slotted disc is
already mounted on the rotor.
Stator
RF
enclosure
Fig.3.1: Mechanical structure, exploded view
HBM
Optical speed sensor (option)
Antenna segments
Fan type lock
washers
T10FS
Rotor
(without slotted disc)
A0785 14.0 en