Avtor/Urednik		Bunc, M; Rozman, J; Šuput, D
Naslov		Force transducer for measurement of gill movements in fish
Tip		članek
Vir		In: Proceedings of the 6th Vienna international workshop on functional electrostimulation: basics, technology, application; 1998 Sep 22-24; Vienna. Vienna: University of Vienna, Department of biomedical engineering and physics,
Leto izdaje		1998
Obseg		str. 279-82
Jezik		eng
Abstrakt		A single channel force transducer intendent for measurement and evaluation of the curves of recruitment of fibres in muscles contracting synnergistically during respiration of fish was designed, developed and experimentally tested. The most important requirements in developing of the proposed force transducer were, that transducer should be able to evaluate a force elicited by contraction of the muscles (gill movements), that electrical response should be as linear as possible in whole range of forces, and, that transducer should react fast enough to be able to represent contraction as reliable as possible. The force transducer was made up of full Wheatstone bridge composed of four semiconductor strain gages bonded on especially designed cantilever. The mechanic tension produced by force elicits elastic deformation of the cantilever thus resulting as the change of the output voltage which direcly represent an information about mechanical load applied on the cantilever. The completed transducer represented very linear dependence of the output voltage upon the load. Over the nominal range of (0-70)mN the sensibility of transducers is 0.5mV/mN at bridge excitation voltage of 5V.
Deskriptorji		MUSCLE CONTRACTION RESPIRATION MUSCLE FIBERS FISHES