Due to the electrohydraulic servo mechanism was used to drive the motion deck of the semi - physical simulator on the ground . therefore , the model of electrodraulic servo mechanism was built based on the fundamental equations of hydraulic jar and servo valve 由于空间对接机构地面半物理仿真系统采用电液伺服驱动机构,因此本文根据电液伺服驱动机构的基本方程,建立单缸电液伺服驱动机构的模型。
This text divides into five chapters altogether : chapter one in the introduction , have introduced the common sensor of displacement , has pointed out the fine characteristic of hall ' s sensor , put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance , electromagnetic characteristic , zero error , frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism , systematic implementation method , the experimental result has appeared , structure the mathematics model , and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to 本文共分为五章:第一章绪论中,介绍了常见的位移传感器,指出了霍尔传感器的优良特性,提出了基本任务;第二章介绍了霍尔元件的基本工作原理;第三章介绍了霍尔元件的温度性能、电磁特性、零位误差、频率特性以及这些参数常用的补偿方法和霍尔元件的简单应用;第四章介绍了反馈随动机构的测量原理,系统的实现方法,给出了实验结果,构建了数学模型,并对误差进行了分析;第五章展望中指出了今后的发展方向。
If can utilize hall ' s component to measure displacement under the condition of the simple magnetic field , increase the range of measuring ; it inertia little , merit that exposed to make it function in the measurement of vibration and in various kinds of displacement , become a kind of displacement sensor with fine performance . it can solve this difficulty to adopt the feedback servo mechanism 若能在简单磁场的条件下利用霍尔元件测量位移,增加测量范围;它惯性小、非接触的优点将使它在各种位移与振动的测量中发挥作用,成为一种性能优良的位移传感器。采用反馈随动机构可解决这个困难。
The feedbacks of position , velocity , acceleration and dynamic pressure were applied to adjust the model , so the control system of single jar electrodraulic servo mechanism was built . to reduce the system error and interference error , the compound control was designed . the results of simulations showed that the magnitude attenuation and phase lag of the system come to the project demand 引入包括位置反馈、速度反馈、加速度反馈和动压反馈在内的反馈控制技术对电液伺服驱动机构模型进行综合校正,从而建立单缸电液伺服控制系统,并在分析系统误差和扰动误差后,加入复合控制减小系统误差和抑制干扰,仿真结果表明复合控制系统的控制品质有了明显改善,能够满足工程需求。
Methodology for absolute measurement is proposed by using an outside installation mechanism in laser tracking measurement system , which has an important reference value in practicality in high accuracy assembly and inspection of large - scale mechanical field . spherical tracking servo mechanism " s model described in this paper not only is a new thought but also have much reference value in the mechanical design and other industrial machines design 本文提出的外置式激光跟踪测距系统应用于无导轨曲线测量的设计方法在大型机械现场组装与安装中具有较高的参考价值和实用价值,提出的球形跟踪伺服机构的设计思想,不仅简化了伺服机构,对跟踪伺服机构的设计提供了新思路,而且对机器人设计及其他工业领域机构设计都具有一定的参考价值。