In the experiments, the accelerometer and the microphone are used respectively to measure the acceleration on the panel and the sound pressure in the cavity. Piezoelectric ceramics Transducer is used as the control source to control reverberant sound field transmission through a simply supported rectangular aluminium panel into a concrete cavity.
实验中采用加速度计和话筒作为传感器拾取板振动的加速度和闭空间内的声压信号，用压电陶瓷片作为振动控制源来控制混响声场通过简支矩形铝板向混凝土闭空间的声传入。
Electro-acoustic equipment categories: electro-acoustic device test system, characteristics of piezoelectric transducer tester, test sensitivity sorting device, sound level meter, precision signal source Sweep, Sweep audio device, the standard sound source, standard test microphone, IEC318 Simulation of the ears, mouth simulation, speakers polarity tester, telephone analyzers, such as electro-acoustic type of testing equipment.
电声器件测试系统、压电换能器特性测试仪、灵敏度测试分选仪、声级计、精密扫频信号源、音频扫频仪、标准声源、标准测试话筒、IEC318仿真耳、仿真嘴、喇叭极性测试仪、电话分析仪等电声类测试仪。
The Breath Sounds Transducer with Electret-Condense Microphone
驻极体电容式呼吸音传感器
Microphone diaphragm through the establishment of a theoretical model, describes the mechanical and electrical microphone transducer principle, the microphone in the vehicle vibration environment, the projectile surface temperature and wind speed market environment environmental impact under a simple theory.
通过建立传声器膜片的理论模型，介绍传声器的力电换能原理，对传声器在飞行器振动环境、弹体表面温度变化环境以及风速场环境下的影响进行了简单的理论分析。