Abstract
Most natural mechanisms and man-made devices are nonlinear, although linearity is often a good approximation and has been the basis for most engineering developments. In many devices the effects of nonlinearity become apparent only under high drive conditions, while other devices are inherently nonlinear and exhibit nonlinear effects, such as frequency doubling, for the smallest of drives. In the latter cases approximate linearity can only be achieved by imposing a bias. Among the electroacoustic transducers only the piezoelectric and moving coil mechanisms have a linear mechanical response to an applied field, and it remains linear only for small amplitudes.
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Butler, J.L., Sherman, C.H. (2016). Nonlinear Mechanisms and Their Effects. In: Transducers and Arrays for Underwater Sound. Modern Acoustics and Signal Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-39044-4_12
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DOI: https://doi.org/10.1007/978-3-319-39044-4_12
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