Parts inspection is usually required to ensure that a part is machined acco
rding to its specifications. It often involves measuring various physical a
ttributes of the part and comparing the measured values against those speci
fied. Generally, a defective location of centre of mass compared with a goo
d part, irrespective of the defect.
This paper reports on the development of a sensor for measuring the locatio
n of the centre of mass and the mass of a machined part. The sensor consist
s of six components: power supply, solenoid, sensor body, signal measuremen
t and conditioning system, interface system, and a personal computer. The m
easurement results show that the sensor can determine the location of the c
entre of mass and the mass of a machined part. By comparing the measured va
lues with those of a standard part, defective parts can be identified.