Acoustic measurement system for measuring air viscosity coefficient

The utility model provides an acoustic measurement system for measuring an air viscosity coefficient, and relates to the technical field of air viscosity coefficient measurement. An acoustic measuring system for measuring an air viscosity coefficient comprises a signal receiving and transmitting device, a first sound output device, a first sound input device, a first closed cavity and a temperature measuring device, the first sound output device is arranged at the bottom of the first closed cavity, the first sound input device is arranged at the top of the first closed cavity, and the temperature measuring device is arranged in the first closed cavity. The temperature measuring device is arranged in the first closed cavity, and the signal output end and the signal input end of the signal receiving and transmitting device are electrically connected with the first sound output device and the first sound input device respectively; according to the system, the actual resonant frequency of the system can be accura