Another Bi-Axial Accelerometer

Mon, 26 Jan 2026 13:33:40 -0500

I really doubted the usefulness of what we were doing here - which was trying to measure movement (displacement) of the panels using accelerometers - something they are not very good at. For the Geeks: acceleration is basically displacement X frequency squared. The movement we were looking for was essentially very low frequency, so even large displacements wouldn't provide much of a signal. But high frequency vibration, like the plates banging against each other, creates a large signal with very small displacement. There is a lot of high frequency stuff going on with something like this, which overwhelms the low frequency plate displacement. But this job was designed by someone else, we were sub-contracted to just take the measurements. I'm glad I wasn't the one trying to get good analysis results from it!