Acoustic Measurement of Castings' Natural Frequency

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The presentation provides an in-depth exploration of a technology-driven approach to measuring physical quantities, focusing on frequency as a key indicator of defects in industrial applications. It delves into the principles of sensor operation, highlighting the role of mechanical vibrations and resonance. The use of microphones as non-contact sensors, complemented by vibration exciters, is explained. Detailed measurement methods, including the impulse-acoustic technique and FFT analysis,...