Characterization and modeling of the internal vibrations of a balanced armature receiver

Open Access

Table 3

Component materials and associated values used to calculate the initial parameter estimates. The values for nickel Ni are the mean values of maximum and minimum values provided by the citation, assuming a uniform distribution.

Components	Material	Density (kg/m³)	Young’s modulus(N/m²)
Armature, stack	Ni₅₀Fe₅₀	7850 [3]	2.0 × 10¹¹ [3]
Chassis	Ni₈₀Fe₁₅Mo₅	8800 [12]	–
Pin	Ni	8890 [13]	2.05 × 10¹¹ [13]
Membrane, hinge	Al	2700 [14]	0.7 × 10¹¹ [3]
Suspension	Mylar foil	–	–
Magnets	NdFeB	7400 [15]	–
Coil	Cu	8960 [14]	–

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