I have come across this way of measuring speaker cone resonance in AES standard. Just the cone without coil or magnet to see what frequency its resonating.
https://www.scribd.com/document/94952543/Aes19-1992-Loudspeaker-Resonance-Measurement-Procedures
Look at one option is to put a subwoofer in a box and then put the cone on one side of the box and excite the subwoofer sweeps be done and wherever the cone which is to be measured displaces more at a particular resonant frequency I guess that would be the actual resonance of the cone. The above AES paper from 1992 is suggesting that.
I saw it on Ciare youtube video as well
any inputs from the members would be greatly helpful
https://www.scribd.com/document/94952543/Aes19-1992-Loudspeaker-Resonance-Measurement-Procedures
Look at one option is to put a subwoofer in a box and then put the cone on one side of the box and excite the subwoofer sweeps be done and wherever the cone which is to be measured displaces more at a particular resonant frequency I guess that would be the actual resonance of the cone. The above AES paper from 1992 is suggesting that.
I saw it on Ciare youtube video as well
any inputs from the members would be greatly helpful
You are describing a Passive Radiator.
Then you have to ask > is it in free-air or in a box? You would find two different resonant frequencies.
To get a 'general ballpark' frequency, you could put the Passive Radiator into a very large sealed box
and using a microphone & spectrum analyzer do a cone-tapping test, observing the fundamental frequency.
Then you have to ask > is it in free-air or in a box? You would find two different resonant frequencies.
To get a 'general ballpark' frequency, you could put the Passive Radiator into a very large sealed box
and using a microphone & spectrum analyzer do a cone-tapping test, observing the fundamental frequency.