The invention discloses asound pickup. The sound pickup comprises a sound wave guide part which is used for collecting sound waves in a specific direction and transmitting the sound waves to a sound wave resonance part, the sound wave resonance part which is used for generating resonance based on the same frequency as the sound wave and outputting an electric signal, and a signal processing unit which is arranged in the hollow shell of the sound wave guiding part and is used for processing the electric signal and outputting a corresponding audio signal. The sound wave guide part is a hollow shell with one end opened, the sound wave resonance part is arranged at one end, far away from the opening of the shell, in the hollow shell, and the sound wave resonance part is connected with the signal processing unit. The sound pickup serves as the front end of a sound wave detection system to form a sound wave resonance aircraft low-altitude detection system, and the problem that the detection distance of an existing sound wave detection system is limited due to the fact that a conventional sound pickup is affected by the environment is solved.
本方案公开了一种拾音器,包括:声波导向部,用于收集特定方向的声波并传导至声波谐振部;声波谐振部,用于基于与所述声波相同的频率产生谐振并输出电信号;信号处理单元,设于声波导向部中空壳体内,用于对所述电信号进行处理输出相应的音频信号;所述声波导向部为一端开口,内部中空的壳体,所述声波谐振部设于所述中空壳体内远离壳体开口的一端,所述声波谐振部与所述信号处理单元连接。该拾音器作为声波探测系统的前端,形成声波谐振飞行器低空探测系统,解决现有声波探测系统由于常规拾音器受环境影响而使得探测距离有限的问题。
Sound pickup and aircraft detection system
一种拾音器及飞行器探测系统
2021-06-01
Patent
Electronic Resource
Chinese