HBM TIM-EC Montageanleitung Seite 45

TIM-EC
Fig. 10.10 shows the CASMA filter with the required input
parameter. "M
(t)
angular velocity. "M
the angular velocity. "Ф". With each pulse, the current
torque measurement is accepted into filter and the last
value is cleared from the filter. Then the sum of the
measured values in the filter is divided by the number of
values to be averaged (n), and the result is output. With
the "D" input, the angle of rotation pulses can be divided
down via an internal divisor. This can be necessary when
working over a wide angle range and high angle resolu­
tion.
Information
The maximum number of measured values that can be
averaged is n
max
this value is not exceeded. The number of n can be re­
duced by using the divisor.
You must also ensure that the angle of rotation pulses do
not arrive any faster than the torque measurements. Oth­
erwise the calculation of the moving average will be in­
correct, as the applied torque measurement will be taken
into account more than once in the average value filter.
This means that the maximum permissible rotational
speed must be defined and taken into account in the act­
ive CASMA filter.
In the TIM-EC, the CASMA filter is only available in signal
path TP1. In signal path TP1, the filter can be switched
on ć or switched (OFF) to bypass mode.
A3704-4.0 HBM: public
" is the torque measurement and "Ф" the
" is the moving average subject to
(Φ)
= 4096 values. So you must ensure that
Settings
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