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The newly developed method improves the monitoring and control process for beam welding. In contrast to most
commonly used methods, the new monitoring process is root sided, i. e. it takes place on the back part of the
workpiece. Furthermore, the invention describes a monitoring device optimized for beam welding. Beam welding
using the invention avoids incomplete fusion at the weld interface and increases the stability of the weld joint.

Snow falls in winter and melts in spring, but what drives the phase change in between?

As product diversity increases, the complexity of production processes is also rising. The consequence: employees, too, must be re-qualified. With the help of…

Method for reducing cross-talk / interference: The optimal utilization of the available frequency bands plays an important role in the transmission of messages. In frequency multiplexing, sub-frequency bands are allocated to individual communication channels, which are usually completely independent of each other. In practice, however, there is cross-talk, that is, in a channel, signals from the two adjacent channels are also received. Thus, the received signal is composed of useful signal and interference signal. The aim of the present invention is to compensate for the interfering signal component. This is particularly important when the intensity of the adjacent channel signals and thus the interference signal which they contribute are greater than the actual useful signal (“adjacent channel interference problem”).

The team of scientists led by Rita Schüler and Andreas F. H. Pfeiffer of DIfE has now published its results in the journal JAHA: Journal of the American Heart…

Charge flow frequency converters are used when especially small electrical currents must be measured. Usually, the integrator and the comparator are connected in series. The improved method can be used anywhere where very small currents of both polarities with high dynamics are measured.