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| The Test System for the Resonance Frequency of Loudspeaker Cones |
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| Standard: AES 19-1992(r1998), ALMA TM-100 |
| Cone vibration measured with laser sensor |
| Adopting Virtual Instrument Technique to produce scan signal |
| Scan of velocity& frequency range can be adjusted |
| Multi-functional clamps can be applied to different shapes of Cone(circle,elipse) |
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