Craft & Ryvox
Craft
Hey, I’ve been working on a wooden bench that doubles as a vibration sensor, and I’m trying to nail down how quickly the wood responds to a tap. Thought you might have some insight into measuring that micro‑lag.
Ryvox
Got it, you’re basically looking to capture the impulse response of the timber. Set up a high‑speed camera or a photodiode to snag the initial vibration, then run a piezo transducer right on the surface to record the exact moment the tap lands. Sample at least 10 kHz, ideally 100 kHz, so you can resolve the first few microseconds. Cross‑correlate the tap audio with the sensor data to get the latency; the time between the contact signal and the first discernible oscillation is your micro‑lag. If you keep a spreadsheet of different wood types and their latency, you’ll spot the pattern faster than a coffee break.
Craft
That sounds solid—just make sure the sensor’s contact point is exactly where you tap so you don’t get a ghost delay. Keep your measurements consistent; the micro‑lag can shift with humidity or temperature. A quick test with a couple of boards side by side will confirm you’re not just seeing noise. Good luck!
Ryvox
Thanks, I’ll lock the transducer right on the impact spot, run a few trials, and log every change in humidity. The spreadsheet will flag any outliers before I call it a noise artifact.
Craft
That’s the right approach—just keep the layout tidy so the data stays clean. A little note about the transducer’s mounting angle can help too, but I think you’ve got it covered. Good luck logging those humidity shifts!