短路环对电动振动台幅频特性的作用  

Effect of Short Circuit Ring on Amplitude Frequency Characteristics of Electric Vibration Table

作　　者：秦亚明 孙险峰 焦宇峰 李伟 Qin Ya-ming;Sun Xian-feng;Jiao Yu-feng;Li Wei(ETS SOLUTIONS(BEIJING)LTD,BeiJing 100076)

机构地区：[1]北京航天希尔测试技术有限公司,北京100076

出　　处：《电子质量》2021年第12期144-146,共3页Electronics Quality

摘　　要：频率范围是电动振动台的关键性能指标,为提高极限频率需要增加短路环的设计,降低阻抗达到提高电动振动台极限频率的作用,短路环的厚度是设计电动振动台的关键参数,它对振动台性能的影响是不同的。通过改变小型激振器(40 kg)内、外短路环的厚度,测试幅频特性曲线,分析、比较不同辐频特性下的短路环的作用。The frequency range is the key performance index of the electric vibration table.In order to improve the limit frequency,it is necessary to increase the design of the short-circuit ring and reduce the impedance to improve the limit frequency of the electric vibration table.The thickness of the short-circuit ring is the key parameter for the design of the electric vibration table,and its influence on the performance of the vibration table is different.By changing the thickness of inner and outer short-circuit rings of small vibration exciter(40kg),the amplitude frequency characteristic curve is tested,and the function of short-circuit rings under different radial frequency characteristics is analyzed and compared.

关 键 词：电动振动台 短路环 等效阻抗 

分 类 号：TB534.2[理学—物理]