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中文摘要：
针对压电式力传感器和超磁致伸缩力传感器无法对交变载荷进行连续测量的问题,设计了一种以Galfenol合金为敏感元件的封闭式力传感器结构。为对传感器磁路进行优化设计,提出一种考虑材料本征非线性的磁路设计方法,并将之与采用线性磁导率的仿真方法进行对比研究。仿真对比显示,所提出的仿真新方法具有更高的准确性。基于该方法对封闭式力传感器和开放式的力传感器进行了磁路对比,仿真和实验结果显示,利用闭合结构对力传感器进行设计,可以有效提高磁通的利用效率,减少漏磁。同时,仿真得到的磁通密度分布与实验实际测量得到的磁通密度吻合较好,验证了封闭式磁路的可靠性及合理性。
英文摘要：
In order to overcome the problem that alternating load cannot be measured by the piezoelectric material force sensor and the giant magnetostrictive material force sensor,a sealed force sensor is presented,in which the Fe-Ga alloy is taken as the sensing element. A magnetic circuit design method considering constitutive nonlinearity is presented to opti mize the flux path of the force sensor,and it is compared with the simulation method of linear permeability. The simula- tion result is that the new method has higher accuracy. The flux path of the sealed force sensor and the open frame force sensor is compared by the new method, the simulation and experiment result show that the design of force sensor using the sealed structure can improve the utilization of the flux and reduce magnetic flux leakage. What＇s more, the simulated flux density has a good match with the measured flux density, the reliability and rationality of the sealed force sensor is verified.
同期刊论文项目
同项目期刊论文
Modeling of galfenol bending actuator considering nonlinear hysteresis and dynamic real-time control
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