Abstract: The invention is related to hot plugging of an electrical circuit (1) into a separate non-quiesced signal net (6) in an active system (7), such as a digital or analog bus. The inventive solution proposes the addition of a preconditioning network (4) to precondition the electrical circuit (1) to be hot plugged by partially precharging the parasitic input capacitances (C.sub.c, C.sub.e, C.sub.m) of the electrical circuit (1) before hot plugging. The precharging of the parasitic input capacitances serves to minimize transient effects on the active system (7).

Abstract: A computer tomography apparatus has a radiation detector formed by a row of detector elements, and a data acquisition system having a detector channel for each detector element. A multiplexer samples the signals of the detector elements. To avoid image artifacts due to differing disturbing influences in the transmission and conversion of the measured values for the individual detector channels, the multiplexer has a number of levels, and is controlled so that sampling of the individual detector channels takes place in changing sequences. A bank of analog-to-digital converters follows the multiplexer, and the allocation of the converters in the bank to groups of detector channels is also changed during data acquisition. The output signals of the analog-to-digital converters, which represent individual outputs for each channel, are entered into a memory in proper numerical sequence.

Abstract: A combined disconnecting and grounding switch for high voltage use. A space-saving arrangement providing for automatic grounding when the switch is in an open circuit position. The disconnecting and grounding switch including a connection contact connectable with a contact having a high voltage potential wherein the contacts are vertically arranged one over the other. The switch also includes a switch rod designed to be vertically displaceable in its longitudinal direction. The switch rod has an upper conductive section and an adjoining lower non-conductive section. The switch rod can be moved up or down by a driving arrangement including a threaded shaft driven by a motor and a traveling nut assembly cooperating with the threaded shaft.

Abstract: An arrangement for the dynamic direct display of pulses in the nanosecond range operates without oscilloscopes or other special display apparatus. To display pulse timing or amplitude characteristics, a pulse sequence is applied to an equidistant tapped delay line, the output from each tap being connected to a bistable storage element with an indicator lamp in the output. A plurality of indicator lamps are arranged in the form of a matrix. If a pulse occurs on a tap during a sampling interval, the associated indicator lamp is turned on. The sequence and identity of the turned on indicators is indicative of the pulse spacing and the pulse width in the pulse sequence.