Acoustic resonance testing for quality control
Polytec offers acoustic resonance analysis for quality control with its laser vibrometers.
Resonance testing describes the analysis of resonances of a sample by characterizing its vibrational signature. Resonance testing is a valuable technique used in various industries to assess the structural integrity and quality of mechanical components or systems by analyzing their natural vibration frequencies and modes. It involves exciting the component with a mechanical or acoustic force or input and then measuring the response of the component to determine its resonance characteristics.
In industrial manufacturing, the resonant inspection often used in the end-of-line test, allows clear pass-fail decisions, detecting defects for excluding rejects from production lines.
Optical vibration sensors like laser Doppler vibrometers provide a non-contact, high precision alternative measurement solution for determining the resonance frequency, offering many advantages in the context of acoustic resonance testing: they capture the true, undisturbed vibrational behaviour without mass-loading and offer remote analysis with fast data acquisition.
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