User's Manual

Structure and mode of operation
14 A4429-1.0 HBM: public T40FH
4 Structure and mode of operation
The torque flange consist 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 trans
mission 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.
Connector plugs for the torque and rotational speed sig
nals, the voltage supply and the digital output are located
on the stator. The antenna segments (ring) should be
mounted concentrically around the rotor (see Chapter 5).