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基于3D打印技术的腰形筒微压传感器的制备及性能

Research on Preparation and Performance of a Waist-Shaped Micro Pressure Sensor Based on 3D Printing Technology
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摘要 采用3D打印技术设计和制作了一种腰形筒结构作为弹性元件的压力传感器。通过有限元仿真分析了腰形筒在内压下的表面应变分布规律,发现表面存在均匀对称分布的周向拉、压应变区域,且应变与压力呈线性关系。研究了腰形筒结构尺寸对传感器特性的影响,优化了腰形筒的结构尺寸。使用光敏树脂作为打印材料,对制成的传感器进行压力测试实验,发现实验结果与仿真结果相一致,传感器性能稳定,线性度为0.61%,灵敏度为542.04με/kPa,迟滞2.43%,零漂8.42με。 A pressure sensor using 3D printing technology was designed and fabricated,adopting a waist-shaped tube as the elastic element.Strain distribution of the waist-shaped tube under internal pressure was analyzed by FEM simulation.A symmetrical strain distribution was found along its surface and the strain value depends linearly on input pressure.Influence of the tube size on sensor's static characteristics was studied and then the size was optimized.The waist-shaped tube was made by photosensitive resin as the printing material.Pressure test experiment is operated on the sensor and the result showed that the simulated strain distribution result had a good agreement with that of the experiment measurement.The sensor had a stable performance and obtained linearity of about 0.61%,sensitivity of 542.04με/kPa,hysteresis of 2.43%,zero-drift of 8.42με.
出处 《常州大学学报(自然科学版)》 CAS 2017年第5期68-73,共6页 Journal of Changzhou University:Natural Science Edition
关键词 3D打印技术 微压传感器 腰形筒结构 3D printing technology micro pressure sensor waist-shaped tube structure
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