Re:DIY Acoustic Camera
by jbay808 on Wednesday October 27, 2021 @06:01PM
(#29019649)
It would be great if I could point something at a noisy machine and find out precisely which panel is loose and vibrating!
[ Parent
| on HN ]
Really? Would it be "great" enough that you'd pay for such a device? If so how much? (would love to continue over email)
Looks like it's found use in automotive applications for tracking down NVH (noise, vibration, and harshness) issues.
Re:DIY Acoustic Camera
by hetspookjee on Wednesday October 27, 2021 @07:16PM
(#29020258)
I’d definitely pay for it. Though I’d use it outdoors in the woods to see where birds and other critters are hiding. Though I reckon the noise will pose a challenge.
Yes. Email sent ;)
There was a thread on here a while back where people would set up cameras and be able to make a motion image showing what parts moved with a regular frequency. Was being used at factories to determine points of failure via vibration. Can't find the thread now though.
Aha, it was a video by Steve Mould:
https://www.youtube.com/watch?v=rEoc0YoALt0