摘要
为了对运动参量测试设备进行校准,研制了一套双曲柄连杆耦合运动装置。通过两套变频调速伺服电机进行运动控制,产生了大范围可调的动态位移、速度、加速度等运动参量。通过4通道高速采集卡和工控机完成全程运动参数的精确测量和运动误差分析。在设计机械结构、控制系统和信号测量系统的基础上,提出了一种基于时间共轭的超前反馈控制算法和基于相位比较的测量方法。测试结果表明,速度、加速度的测量误差小于1%。该校准装置可以用于运动测试设备的校准。
A double slider-crank mechanism was developed to calibrate the motorial parameters testing equipment. The demanded displacement, velocity, acceleration and other motorial parameters can be generated on the device and can be modulated in a broad range. A 4-channel high speed data acquisition system was utilized to measure and process the motorial parameters accurately. Based on the design of mechanical structure, control system and measuring system, an advanced feedback control method according to time conjugation and a measurement method according to phase comparison were proposed. Test results indicate that the measurement error of velocity and acceleration is within 1%. The apparatus developed is competent for calibration of motorial parameters.
出处
《振动与冲击》
EI
CSCD
北大核心
2012年第14期177-180,共4页
Journal of Vibration and Shock
关键词
校准
动态测量
直接数字频率合成
超前反馈
伺服系统
calibration
dynamic measuring
direct digital synthesis
advanced feedback
servo system
