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2 2016

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Electromagnetic susceptibility of IP camera

Kovář S., Valouch J., Adámek M.

Przegląd Elektrotechniczny

2016

R. 92, nr 5

204--208

Electromagnetic susceptibility is an important ability of all electronic and electric devices which are located in the area with electromagnetic interference. The paper is focused on IP camera and it describes its levels of electromagnetic susceptibility against electromagnetic interference. The measurement must be performed according to standard EN 50130-4 ed. 2.

Podatność elektromagnetyczna jest ważnym parametrem określającym odporność urządzenia na zakłócenia elektromagnetyczne. W pracy badano kamerę IP w oparciu o normę EN 50130-4 ed. 2.

Mathematical Modelling of the Heald Shaft

Bílek M., Kovář S., Skřivánek J.

Autex Research Journal

2016

Vol. 16, no. 4

175--181

The manufacturers of weaving equipment recently endeavour to minimise the necessary designing plays in the weaving loom mechanisms. One of the mechanisms most exposed to stress is the shedding motion that defines the held-shaft stroke. Its end part is the heald shaft. The heald shaft constitutes a problematic assembly of the shedding motion. The design employed presently is characterised by dynamic impact loading caused by designing play in the suspension of healds into the heald shaft. During weaving cycle, the healds fly between the main beams of the heald shaft, producing a considerable force pulse. This paper is concerned with the description of dynamic behaviour of the existing design on the basis of mathematical modelling and verification of obtained results by means of experimental analysis.