基于科式惯性力产生原理的机械式角速度传感器  

Mechanical Angular Velocity Sensor Based on the Principle of Coriolis Force

作　　者：梁烽杨 汪地[1] 孙玲玲[1] 杨浩[1] LIANG Feng-yang WANG Di SUN Ling-ling YANG Hao(School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, Chin)

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《仪表技术》2017年第4期42-47,共6页Instrumentation Technology

摘　　要：根据科式惯性力产生原理的基本公式F_c=2mv_rω,设计了一套机械式角速度传感器装置。仪器固连在作定轴转动的构件上,同时仪器内部构件作相对直线往复平移运动,引起了两侧贴有应变片的构件的变形,从而产生了科氏惯性力。通过使用动态无线应变测量仪测量构件的变形量,利用力与变形的关系可得到科氏惯性力。利用对心曲柄滑块机构产生相对速度,相对速度可以通过速度传感器进行测量,通过编写运行Matlab程序处理曲柄与连杆长度、滑块行程和科式惯性力等数据,从而达到实时测量角速度的目的。According to the basic formula of generating Coriolis inertia force F_c=2mv_rω, we designed a set of angular velocity sensor device. The instrument is fixedly connected with the rotating members of the fixed axis, and the inner com- ponents have relative linear reciprocating and translational motion. It renders the deformation of the component with strain gauge on both sides, thus the Coriolis inertia force is produced. By applying the dynamic deformation of wireless strain gauge measurement component, using the relationship between the force and deformation can obtain the Coriolis inertia force. Making advantage of centering slider crank mechanism produces a relative velocity which can be measured through speed sensor. The program is run on Matlab to deal with the data including the length of the connecting rod, the slider stroke and the Coriolis inertia force, so as to achieve the purpose of real-time measurement of the angular velocity.

关 键 词：角速度传感器 科氏惯性力 曲柄滑块机构 应变片 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]