AES E-Library

Ferrofluid as an Acoustical Design Parameter

When ferrofluid is incorporated into the voice coil gap of a dynamic speaker, the acoustical parameters such as the mechanical damping factor. (Qm), harmonic distortion and heat transfer can be modified. This paper describes how various properties of a ferrofluid such as the magnetization, viscosity and quantity affect acoustical performance. The volatility of ferrofluid and its impact on speaker behavior was also investigated. The study is conducted on three types of drivers: tweeter, midrange and woofer and provides a valuable design guide.

Authors: Raj, K.; Bonvouloir, J.; Moskowitz, B.
Affiliation: Ferrofiuidics Corporation, Nashua, NH
AES Convention:91 (October 1991) Paper Number:3195 Import into BibTeX
Subject:Loudspeakers

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes12)   /pp9193/pp9110/3255.pdf

Start a discussion about this paper!