基于磁悬浮技术曳引式乘客电梯三维加速度测量

3-D acceleration measurement of traction passenger elevator based on magnetic levitation technology

为实现曳引式乘客电梯三维加速度测量,利用磁悬浮技术设计了惯性式加速度测量模型,建立了垂直方向和水平方向振子的运动方程,设计了磁悬浮三维加速度测量仿真模型,分别进行了垂直方向和水平方向加速度仿真,并通过实验对仿真模型进行了验证。实测了曳引式乘客电梯垂直方向和水平方向的加速度。磁悬浮加速度测量系统的振子处于悬浮状态,测量灵敏度较高,测量频率低,分辨率高,易于实现绝对式多维加速度测量,实验证明适于电梯的加速度和振动测量,且便于安装和调试。

In order to realize 3-D acceleration measurement of a traction passenger elevator, an inertial acceleration measurement model was designed using the magnetic levitation technology. Dynamic equations of a vibrator were established in vertical direction and horizontal one to design magnetic levitation 3-D acceleration measurement simulation model, and simulate vertical and horizontal acceleration, respectively. The simulation model was verified with tests. The vertical and horizontal accelerations of the traction passenger elevator were measured in tests. Results showed that when the vibrator of a magnetic levitation acceleration measurement system is in a levitation state, its measurement sensitivity is higher, its measurement frequency is lower, the measurement resolution is higher and it is easy to realize absolute multi-dimensional acceleration measurement;the proposed method is suitable for elevator acceleration and vibration measurements, and the corresponding test devise is easy to install and adjust.