Measured value acquisition in the ibaQDR system is based on the acquisition time base. The measured values are acquired using the timing from this time base. The choice of time base influences the computer load and should be adjusted for the features of the relevant line. The maximum line speed is the most important design criterion. The frequency of the division cuts and the rate of the finished products should also be taken into account.
Particularly for the tracking signals it is essential to make sure that the required length resolution is assured in the ibaQDR system, i.e. there is at least one time-based raw measured value for each measured value in the ibaQDR DAT file.
Example
Maximum line speed
300 m/min or 5 m/sec
Required length resolution in ibaQDR
0.5 m
Selected time base
To reliably acquire every 0.5 meter of the strip, a time base of < 100 ms should be set. However, setting a time base of ≤ 50 ms (corresponding to ≥ 20 samples per second) is strongly recommended.