Torque sensor model 8661 OPERATION MANUAL

Operation Manual
Torque sensor model 8661
Technical inquiries:
(+49) 07224 / 645 -0
Determination of the resonant frequency
The resonant frequency of the entire test setup is related to the sensor’s spring
constant “c” and to the two moments of inertia “J 1 ” and “J 2 ”, each with the
connected molding body.
f 0 :
J 1 :
J 2 :
Resonant frequency in Hz
Moment of inertia 1 in
kg * m 2
Moment of inertia 2 in
kg * m 2
c: Spring constant in
Nm / rad
fig. 23.:
resonant frequency model
The Holzer-Tolle method is another way to determine the resonant frequency.
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