This new, iterative process of waveform collection / validation / potential waveform correction results in tires tested more accurately and with greater repeatability, within a much faster measurement cycle.
Better Measurement Quality
The radial force par values for a set of master tires generally becomes lower by about 1 to 2 percent due to the fact that WVC mitigates the tendency of a machine to increase a radial force waveform affected by undesirable interactions of its subsystems.
We have found that the quality of the radial force measurements for peak to peak and all harmonics benefit the most from the WVC process. For a machine running at it fastest cycle time, the 1 sigma repeatability for radial force measurement can generally be under 0.25 daN (0.55 LBS) and for a machine with well performing subsystems, below 0.20 daN (0.43 LBS). With lowered par values and improved measurement capability due to reduced 1 sigma repeatability, the number of tires measured and passed to 1st class increases.
Faster Cycle Time
The cycle time of the machine is also greatly reduced. In fact, WVC allows 2 direction test cycle times for our flagship CX111 machine of well under 18 seconds. Since WVC can ensure valid measurements and also remove unwanted disturbances from a still settling and stabilizing waveform, the machine can begin testing as soon as tire position (loadwheel walk) has been accomplished. That generally occurs somewhere around 1.5 to 2.5 revolutions, depending on the tire size and construction.
Update Existing Machines
While WVC provides the greatest benefits when used with other Poling Group innovations like the TTOC6 controller, the TDAQ measurement collection system, and the Tire Automatic Inflation Regulation (TAIR)
pressure regulation system , we have GREAT NEWS
for our customers who already own a TTOC controller! Several elements of the WVC software set can be installed on your system using hardware you already have, for a modest charge per machine, and within a single multi-day service call, all your machines can be upgraded.