摘要
针对金属量器传统检定方法存在准确度低、水资源浪费和检定效率低等问题,提出了一种基于视觉技术的金属量器自动检定方法。基于该方法设计了新型容量检定标准装置,设计了标准和被检金属量器自动对接的机械结构,以及开发了一种基于LabVIEW和PLC的检定系统软硬件,并对该装置进行了不确定度评定。实验结果表明,基于所提方法的标准装置能较好地维持检定过程中容量和状态参数的稳定,与传统手动检定方法相比,效率提高30%以上,该自动测量扩展不确定度为6.4 mL(k=2),可满足金属量器的检定要求。
On the issues of solving several problems such as low accuracy, water waste and low efficiency in traditional standard tank verification methods. This paper provides a set of standard tank automatic verification method based on the principle of visual technology. The standard facility of capacity verification is developed by this method. Moreover, we developed the mechanical structure automatically docking with metal tank and designed a verification system, whose software and hardware is based on LabVIEW platform and PLC. In addition, it conducts the uncertainty evaluation on the devices as well. According to results of this principle, the standard facility of this structure can maintain stability of capacity and state parameters during verification. Experimental results indicate the verification efficiency is improved by more than 30%, the uncertainty of verification is 6.4 mL(k=2), which can meet the requirements of detection for metal tank.
作者
张东飞
郝华东
陈曹浪
何操
施浩磊
王莹莹
Zhang Dongfei;Hao Huadong;Chen Caolang;He Cao;Shi Haolei;Wang Yingying(Suzhou Institute of Metrology,Suzhou 215128,China;Zhoushan Institute of Calibration and Testing for Quality and Technology Supervision,Zhoushan 316000,China)
出处
《电子测量技术》
北大核心
2021年第13期91-96,共6页
Electronic Measurement Technology
基金
浙江省市场监督管理局质量技术基础建设项目(20190132)
舟山市科技计划项目(2019C31057)资助。
关键词
金属量器
视觉技术
自动控制
检定装置
检定效率
standard tank
visual technology
automatic control
verification facility
measure efficiency
