Load-Carrying Capacity; Measuring Dynamic Torque - HBK HBM T210 Montageanleitung

6

LOAD-CARRYING CAPACITY

The T210 can be used to measure static and dynamic torques.
Nominal (rated) torque can be exceeded statically up to the torque limit. If the nominal
torque is exceeded, additional irregular loading is not permissible. This includes axial
force and lateral forces and bending moments. The limit values can be found in chapter
10 "Specifications", page 22.
6.1

Measuring dynamic torque

When measuring dynamic torques, please note:
S
The calibration performed for static torques is also valid for dynamic torque measure­
ments.
Notice
The frequency of the dynamically acting torques must be lower than the natural fre­
quency of the mechanical measuring arrangement.
S
The natural frequency f
moments of inertia J
stiffness of the transducer.
The equation below can be used to determine the natural frequency f
measuring arrangement.
+ 1
<
f
0
2p
S
The oscillation width (peak-to-peak) may be max. 80% of the nominal (rated) torque of
the torque transducer, even under alternating load. The oscillation width must fall
within the loading range specified by -M
14
of the mechanical measuring arrangement depends on the
0
and J of the two connected rotating masses and the torsional
1 2
< 1 ) 1
c
T
J J
1 2
f = natural frequency in Hz
0
J , J = moment of inertia in kg·m
1 2
c = torsional stiffness in N·m/rad
T
and +M .
N N
of the mechanical
0
2
LOAD-CARRYING CAPACITY
T210