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本文将随机振动问题中的传递函数理论推广应用于噪声测试问题中,省略了测振求声技术中许多点的界面声压级的测取和计算问题,简化了测试程序。经验证,采用传递函数法得到的界面声压级值与实际的界面声压级值误差小于2dB(A)。
In this paper, the theory of transfer function in random vibration is generalized and applied to the problem of noise testing. The problem of measuring and calculating the interface sound pressure level of many points in vibration and sound seeking technology is omitted, and the testing procedure is simplified. It has been verified that the error between the interface sound pressure level obtained by the transfer function method and the actual interface sound pressure level is less than 2dB (A).