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. 2018 Sep 6;11:301–312. doi: 10.2147/MDER.S171369

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© 2018 Håkansson et al. This work is published and licensed by Dove Medical Press Limited

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(A) B250 and B81 vibration transducers as well as the B&K Minishaker 4810 (shown for comparative purposes) with their relative real size shown to the left and with their frequency responses to the right. (B) The frequency responses are shown as the output force level in dB re 1 μN measured on an artificial mastoid B&K 4930 when driven by a sinusoidal signal with an amplitude of 1 Vrms from 100 to 10k Hz.

Notes: A static attachment force of 10 N between the transducer and the artificial mastoid was used.