Treball de recerca...
Dissenya la teva pròpia balança
OBJECTIUS: Com funciona una balança?... dinssenya i construeix la
teva!
Truck scales are built to handle an enormous amount
of abuse. For example, Weigh-Tronix provides a truck scale that they warranty
to weigh trucks with a gross weight of 80,000 lbs (36,000 kg) each at
a rate of 200 per day, 365 days a year for 25 years! Truck scales are
built out of steel, concrete or, in most cases, a combination of both.
The four levers in the scale are designed to work like one. There are four because that makes weight distribution much easier. The levers connect into a plate at the end of a spring.