Increment motion control system refers to microsecond even nanosecond electronic apparatus switch transient process, millisecond digital controller adjust process and second motor transition process.

A new design method of digital PII robust adjusting controller for a general process control system with large time varying time delay is developed by studying its properties.

As one important part of seismic data acquisition system, on-site digital recording system not only can monitor and process field seismic data in time but also can control recording quality.