Abstract
We are developing an advanced computer-controlled digital optoelectronic holographic system (DOEHS) with the ability to measure both shape and acoustically induced deformations of the tympanic membrane of several species, including humans. The DOEHS have been deployed for testing and use in clinical environment. The DOEHS consists of laser delivery (LD), optical head (OH), sound presentation (SP), computing platform (CP), and a mechatronic otoscope positioner (MOP) subsystems. In this paper, we present advances in our development of the MOP subsystem, which is capable of positioning the OH subsystem near the patient’s ear and maintaining of its relative position and orientation during holographic eardrum examinations. Our work focuses on the development and implementation of various approaches for mechanical stabilization of the MOP-OH subsystems, including custom designed packaging of the OH as well as automatic interferometric compensation against measuring disturbances induced by periodic oscillations, such as those produced by heartbeat and breathing of a patient during examination. We present preliminary results of our investigations of acoustically induced motions on tympanic membranes by measurements with our DOEHS enabled with a structurally stable MOP subsystem.
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Dobrev, I., Furlong, C., Rosowski, J.J. (2011). Design of a mechatronic positioner for a holographic otoscope system. In: Proulx, T. (eds) Mechanics of Biological Systems and Materials, Volume 2. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0219-0_27
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DOI: https://doi.org/10.1007/978-1-4614-0219-0_27
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