sound monitor

Using a new quantitative ultrasound system speed of sound ( SOS) was assessed to monitor bone mineral density of Shanghai children.

【目的】应用定量骨密度超声仪，测定儿童胫骨中段和桡骨远端的超声波沿骨骼长轴的传播速度（SOS），对儿童的骨骼矿物质密度（BMD）进行监测。

Video cameras monitor the interiors, where the faint sound of chirps mix with the whir of big fans.

有摄像头对鸡舍的内部进行监控，鸡舍内，鸡只的叫声和大型风扇的嗡嗡声夹杂在一起。

[ Methods] Instant monitoring and equivalent continuous A-weighted sound pressure level monitoring were applied to monitor the noise intensity in 3 workplaces with incontinuous and unstable noise.

方法选择有噪声作业的3个场所，且噪声是不连续、非稳态噪声，分别用瞬时测定方法和等效连续A声级测定方法对噪声强度进行测定。

This design can gather plant physiological information through AE detection system, monitor and treat sound emission signals using DSP as the core, then storage and output and inquiry data, in order to fulfill auto control.

为此，通过AE检测系统来采集植物的生理信息，以DSP为核心对声发射信号进行监测和实时信号处理，然后对数据进行存储、输出以及查询，实现系统的自动控制。

Heat Shock of Ceramic Thermal Barrier Coating and Its Sound Emission Monitor

陶瓷热障涂层的热震性能及声发射监测