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16:48 Dec 30, 2010
English to Polish translations [PRO] Tech/Engineering - Electronics / Elect Eng / elektroakustyka, głośniki
English term or phrase:soft and hardlimiting nonlinearity
Soft- and Hard-Limiting Nonlinearities
Another obvious feature of the nonlinear curve shape is the steepness of the curve. Motors where coil and gap have the same length become nonlinear at relatively small displacement, as shown by the dashed line in Fig. 5. Conversely, a large voice-coil overhang causes a plateau where the force factor is almost constant over a certain range, as shown by the solid line in Fig. 5
Even at a 5-mm displacement the seventhorder distortion is 25 dB below the third-order component. Fig. 26 reveals a completely different behavior of the overhang coil. This behavior is characteristic of a hardlimiting nonlinearity.
I think they stand here for "smooth" versus "abrupt" transition from the linear to the non-linear displacement range. Just for information, a non-linear behavior creates harmonics (odd numbered - 3rd, 5th, 7th, etc) - go back to Taylor transforms that were studied in advanced calculus.