Maximum Rotation Speed - HBM T20WN Notice De Montage

T20WN
• The natural frequency f
the moments of inertia J
depends on the torsional stiffness of the transducer.
The natural frequency f
determined from the following equation.
+ 1
f ·
0
2p
• The vibration bandwidth (peak to peak) must not exceed 80 % of the
nominal torque identified for the torque transducer, even at alternating load.
In all cases the vibration bandwidth must lie within the loading range defined
by −M and +M
N
torque M in %
N
+M 100
N
45
0
35
−M 100
N
Fig. 2.2 Permissible dynamic loading

4.2 Maximum rotation speed

Torque transducer T20WN allows torque measurements up to a rotation speed
−1
of 10 000 min and rotation speed measurements up to 3000 min
A0726 13.1 en/de/fr
of the mechanical measuring system depends on
0
and J of the coupled rotating masses and
1 2
of the mechanical measuring system can be
0
· 1 ) 1
c
T
J J
1 2
.
N
f = Natural frequency in Hz
0
J , J = Moment of inertia in kg⋅m
1 2
c = Torsional stiffness in N⋅m/rad
T
Upper torque limit
80 % M
vibration bandwidth
Lower torque limit
13
2
N
−1
.
HBM