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. 2009 Jun 24;9(6):4986–5000. doi: 10.3390/s90604986

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© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 9. — The measured frequency responses of transducer with complete clamping at low frequency range (horn diameter: 13.0 mm, and fixed by four screws on clamper).

Figure 9. — The measured frequency responses of transducer with complete clamping at low frequency range (horn diameter: 13.0 mm, and fixed by four screws on clamper).