1994 Volume 56 Issue 4 Pages 107-111
Fruits and vegetables receive mechanical damages from impacts and vibrations during the transportation. To measure the degree of impacts and vibrations, an impact counting device was developed. It can be packed with fruits in a corrugated cardboard box and transported. Between the transportation, it counts the number of impacts above a threshold acceleration in each of triaxial directions. The impact counter consists of a sphere for detecting the acceleration and a package of electronic circuit. The sphere is made of acrylate and contains a triaxial piezoelectric accelerometer.
