谷物流量传感器敏感梁结构对测量精度的影响  

Effect of sensitive beam structure of grain flow sensor on measurement precision

作　　者：王一凡[1] 汤建华 徐修祝 WANG Yifan;TANG Jianhua;XU Xiuzhu(School of Mechatronic Technology,Changzhou Vocational Institute of Textile and Garment,Changzhou 213164,China;School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]常州纺织服装职业技术学院机电学院,江苏常州213164 [2]江苏大学机械工程学院,江苏镇江212013

出　　处：《传感器与微系统》2021年第10期67-70,共4页Transducer and Microsystem Technologies

基　　金：江苏省高等学校自然科学研究面上资助项目(18KJB460001);常州市社会发展项目(CE20185008);常州市纺织服装职业技术学院科研基金资助项目(CFK202002)。

摘　　要：为了研究谷物流量传感器敏感梁结构参数对测量精度的影响,设计了一系列简便的试验对两种不同结构的双孔平行梁式谷物流量传感器的静动态特性进行了比较分析。试验结果表明:在冲击载荷作用下,A型结构(短孔距敏感梁结构)传感器的弯曲刚度比B型结构(长孔距敏感梁结构)的传感器高62%,响应频率也更高,但响应频率与所加载荷成反比;同时,在相同冲击载荷作用下,A型结构的输出信号比B型大了约10%,但零点漂移也相应增加了35%。通过试验和理论分析,认为A型结构的传感器更适合作为冲量式谷物流量传感器使用。In order to study the influence of sensitive beam structure parameters of grain flow sensor on yield measurement precision,a series of novel experiments are designed and implemented.Experiments result shows that:under the impact load,the bending stiffness of A-type structure(short hole spacing sensitive beam structure)load cell is 62%higher than that of B-type structure(long hole spacing sensitive beam structure),and the response frequency is higher,but the response frequency is inversely proportional to its load.At the same time,under the same impact load,the output signal of A-type structure is about 10%larger than that of B-type structure,but it is easier to produce zero point drift,which is also increased by 35%.Through the experiment and theoretical analysis,it is considered that the sensor with A-type structure is more suitable to be used as an impulse grain flow sensor.

关 键 词：平行梁式力传感器 动静态特性 敏感梁结构 安装扭矩 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]