Eherhard Backer  Mary R. Corya       

Anales de la Mecánica de la Fractura, nº 10 . 1993 . Pág. 311 -318
Ver (.pdf): Anales10-044

Resumen: Digital control tcchniqucs as prcsently used in material testing systcms are essentially analog-/ digital hybrids. Physical advantages of digital technology, therefore relates to the digital part of the control only. The real advantage of digital control is its inherent flexibility. However, not all available systems use this potential. Based on software, different control algorithms can he downloaded to the digital controller. Control algorithms can use numerous feedback signals that can even he influenced by mathematical operations in real time (calculated variahle control). This presentation outlines important issues of analog and digital control and points out the potential or digital technique using software written control modes.

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