An application of noise analysis to quality control

✍ Scribed by G.N. Whalley; N.G. Hemingway

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 184 KB
• Volume: 28
• Category: Article
• ISSN: 0003-682X
• DOI: 10.1016/0003-682x(89)90016-9

✦ Synopsis

This project investigated the possibility of inspecting the quality of an aerosol can's manufacture by the condition monitoring o fits dynamic characteristics.

Aerosol cans were excited randomly using an electromagnetic vibrator while the sound produced was analysed using a microphone and a spectrum analyser. The natural frequencies found for a standard can were then used as a fingerprint' in a quality control process.

Experimentation showed that the monitoring of a can's natural frequencies was a reliable method of detecting defects and hence indicating a can's quality.