声级计是现场噪声测量的主要设备。但是目前我国应用最广泛的还是国际上六、七十年代的老式声级计,‘它们已远远不能满足现代噪声测量的要求。 据了解,可直接测量等效声级的积分声级计在国外已得到了迅速发展。这种声级计免去了老式声级计测量等效声级的人工复杂程序,可在给定? Sound level meter is the main equipment for on-site noise measurement. However, the most widely used in our country is the international old-fashioned sound level meter in the 1960s and 1970s. They are far from meeting the requirements of modern noise measurement. It is understood that the integral sound level meter that directly measures the equivalent sound level has been rapidly developed abroad. This sound level meter eliminates the need for the old sound level meter to measure the equivalent sound level of artificial complex procedures, can be given?