Articles
CONTACT STRESS AREA MEASUREMENT OF SPHERICAL FRUIT
Article number
562_22
Pages
195 – 200
Language
English
Abstract
This paper aims to measure the contact area of rubber spheres and oranges compressed against parallel rigid and flat plates.
To measure this area a system composed of a transducer, an interface device and a microcomputer was used.
The transducer is composed of a board on which some micro-switches were disposed in a linear and radial direction spaced 0.5 mm from each other.
As the contact area was expanding, the micro-switches connected to the interface turned on, forming the bits that compose the binary word that measures the diameter of the area.
The data acquisition system is in-charge of recording the measured area, as function of the deformation imposed to the spheres and to the orange fruit.
The obtained area as a function of deformation was compared with the data reported by Linares, 1996.
To measure this area a system composed of a transducer, an interface device and a microcomputer was used.
The transducer is composed of a board on which some micro-switches were disposed in a linear and radial direction spaced 0.5 mm from each other.
As the contact area was expanding, the micro-switches connected to the interface turned on, forming the bits that compose the binary word that measures the diameter of the area.
The data acquisition system is in-charge of recording the measured area, as function of the deformation imposed to the spheres and to the orange fruit.
The obtained area as a function of deformation was compared with the data reported by Linares, 1996.
Authors
G.F. Rabelo, I.M. Dal Fabbro, A.W. Linares
Keywords
Contact Stress, Spherical Fruit.
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