Does a durometer measure more accurately on a fixed stand?


Could someone at UC Davis tell me if in your experience a Durometer gives more consistent readings if used on a motorized stand?  In other words, if the durometer tip is contacting the fruit at a steady rate of speed and direction, does this give more reliable readings than using it “hand held”? (K.A.J.)



The durometer does give more consistent readings if used on a controlled velocity and controlled force stand (not necessarily motorized). Here is one website where you can get an idea of stands available: Look at something like Model OS-2H Operating Stand.

Important features to consider include: Air Dampened Controlled Rate of Descent. This stand features a load weight for the proper testing pressure as noted in ASTM D2240.

I’m sure you can also find other stands that meet these specifications. 

--David Slaughter