基于电磁力反馈的浮力测量系统研制

Design of buoyancy measuring system based on the feedback of electromagnetic force

为了实现对浮力的自动测量,设计了一种基于电磁力矩反馈平衡原理的数字式自动浮力测量系统,通过测量桥路输出的电流,运用电流与浮力的关系,就可以得到被测物体所受到的浮力。与传统的浮力测量方法相比,该系统具有测量误差小、速度快、精度高的特点,能有效的提高实验效益。

In order to realize the automatic measurement of buoyancy,a kind of automatic digital measuring system of buoyancy,that base on the principle of electromagnetic torque feedback balance,is designed.By measuring the output current of the bridge and using the relationship of current and the buoy-ancy,the buoyancy of the objects can be obtained.Compared with the traditional measurement methods,the system has the character,that the measurement error is small,and speed is quick,also high accuracy,so the experimental efficiency can be effectively improved.