抄録
Simple and accurate system to measure structural damping coefficients was investigated. A new system was developed using a microphone as a vibration sensor and a personal computer for signal processing. Compared with the previous system using a lasor doppler vibrometer and FFT analyzer, the new system was only about 1/10 the cost of previous system, almost the same measurement accuracy was obtained, and measuring time was reduced to less than 1/10 that of the previous system. From these results, the new measurement system was validated for simple and accurate measuring of structural damping coefficients.
