以微型加速度传感器测量电感振动并评估噪音的方法  

A method for measuring inductance vibration and evaluating noise with a miniature accelerometer

作　　者：孙娜 Sun Na(Lenovo Beijing Co.,LTD.,Beijing,100193)

机构地区：[1]联想北京有限公司,北京100193

出　　处：《电子测试》2022年第6期37-38,47,共3页Electronic Test

摘　　要：个人电脑研发过程中,经常会遇到主板区域发出“滋滋滋”的恼人的电噪音。电噪音的主要来源之一是电感的振动。当电感中有大电流或者跳变电流通过时,电感的线圈和磁芯发生振动,振动较强且频率落在20Hz~20KHz范围时,即发出人耳可听到的噪声。During the development of personal computers,annoying electrical noises from the motherboard area are often encountered.One of the main sources of electrical noise is the vibration of the inductor.When there is a large current or a jump current in the inductor,the coil and magnetic core of the inductor will vibrate.When the vibration is strong and the frequency falls in the range of 20Hz~20KHz,it will emit noise that can be heard by human ears.

关 键 词：微型加速度传感器 测量 电感振动 评估噪音 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]