I've been using an accelerometer recently like this article - http://www.audioxpress.com/assets/upload/files/George NtanavarasAccelerometer.pdf
Based on this experience, there are 2 features that would make this easier in REW
1) allow the user to specify the input sensitivity directly, e.g. 75dB = 0.1V, rather than having to measure it. The reason is I have a preamp that is calibrated to produce a given voltage for a stated velocity/displacement/acceleration so if I could plug this in directly to REW then I could just start measuring and mentally translate 75dB (or whatever) to the relevant physical quantity
2) allow the user to switch the y axis scale from SPL (dB) to some other unit (e.g. mm, m/s2, m/s)
Based on this experience, there are 2 features that would make this easier in REW
1) allow the user to specify the input sensitivity directly, e.g. 75dB = 0.1V, rather than having to measure it. The reason is I have a preamp that is calibrated to produce a given voltage for a stated velocity/displacement/acceleration so if I could plug this in directly to REW then I could just start measuring and mentally translate 75dB (or whatever) to the relevant physical quantity
2) allow the user to switch the y axis scale from SPL (dB) to some other unit (e.g. mm, m/s2, m/s)