Geoffrey R. Ball

TL;DR: A floating mass transducer for improving hearing in a hearing impaired person is provided in this paper, where the magnet assembly and coil are configured such that conducting alternating electrical current through the coil results in vibration of the magnet and coil relative to one another.

TL;DR: In this article, a floating mass transducer for assisting hearing in a person is described, which consists of a magnet assembly (12) and a coil (14) secured inside a housing (10), attached to bone within the middle ear.

TL;DR: A floating mass transducer for assisting hearing in a person is provided in this article, where the magnet assembly and coil are configured such that conducting alternating electrical current through the coil results in vibration of the magnet and coil relative to one another.

TL;DR: A laser Doppler system that can be used clinically for the measurement of tympanic membrane, malleus and prosthesis head displacement in response to sound inputs of 80-to 100-dB sound-pressure level (SPL).

TL;DR: A commercial laser doppler vibrometer was used to evaluate umbo displacement at sound pressure levels of 60, 70, and 80 dB SPL at the tympanic membrane (TM) of six subjects and revealed a relatively flat umbo displaced from 140 to 1000 Hz, with a gradually sloping roll-off from 1000 to 7000 Hz.