基于机械臂的温度传感器抗干扰检定系统

针对既有气象温度自动检定系统无法满足传感器年检量不断攀升的现状,为实现温度检定全程无人参与,提出一种基于机械臂的温度传感器检定系统。首先设计系统的并行控制工作模式及总体架构,然后指出搭建系统的关键技术是实现现场通信抗干扰,即分析电源共地、磁场环境、现场通信等要素共同作用使标准器示值持续跳变问题,最后提出一种抗干扰方法,并对优化后的系统进行对比测试。试验结果表明,该方法可使标准器示值回复至稳定状态,充分保证系统正常运行。

Design of Verification System Based on Robot Arm for Meteorological Temperature Sensor and Interference Shielding Research

The limitation of the meteorological temperature verification system is that the degree of automation cannot meet the need of increasing workload. Aiming to realise temperature verification without personnel deployment, this paper proposes a meteorological temperature verification system based on the robot arm. To implement the workflow of the parallel control strategy, the system framework integrates device, networking, communication, and data storage levels. The vital issue of system building is shielding the interference from power grounding, electromagnetic field changing, and device communication. An optimisation method is proposed for interference shielding, and multiple tests are carried out for comparison. The results show that the indicating value of the precision thermometer can be restored to a steady state of dynamic balance, which improves the intelligence of the system and the precision of metrological verification.