What would you measure a banana with?

Here are some ways to measure a banana with equipment

1) use a force gage to measure deflection over a fixed distance. (ripe ones yield easily)

2) Puree the edible part with distilled H2O. Place samples of this slurry in a centrifuge. Place samples of the extracted liquid on a refractometer designed for measuring sugar content and read the concentration in 'brix" units.