SI基本单位的量子计量虚拟实验设计  

Virtual experimental design of quantum metrology of SI base units

作　　者：韩韬[1] 田社平[1] 蔡萍[1] HAN Tao;TIAN Sheping;CAI Ping(School of Electrical and Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《实验技术与管理》2022年第2期73-77,共5页Experimental Technology and Management

摘　　要：针对国际单位制、单位基准及基本单位复现等内容授课抽象等问题,设计了SI基本单位的量子计量虚拟实验。该虚拟实验包含知识探究、实验操作、数据处理、实验考核等4个模块。知识探究模块介绍SI基本单位的历史、量子定义、量子复现、SI基本单位之间的关系、铯束原子频标原理的动画演示以及铯钟谐振观测实验等;实验操作模块以单位秒为例,设计了基于原子频标的守时与远程时间比对虚拟实验;数据处理模块下载全部实验数据进行线下编程处理;实验考核模块评价实验成绩。整个虚拟实验在Unity实时3D平台上采用微软C#语言开发而成,经过在“检测技术”课程中实际应用,效果良好。Aiming at the teaching of international system of units, unit benchmark and reproduction of basic units are abstract, the quantum metrology virtual experiment of Si basic units is designed. The virtual experiment includes four modules: knowledge exploration, experimental operation, data processing and experimental assessment. The knowledge exploration module introduces the history, quantum definition and quantum reproduction of basic SI units, relationship between SI basic units, animation demonstration of atomic frequency standard principle of cesium beam and resonance observation experiment of cesium atomic clock.The experimental operation module takes second as an example to design a virtual experiment of time keeping and remote time comparison based on atomic frequency standard. The data processing module downloads all experimental data for offline programming. The experimental assessment module evaluates the experimental results.The whole virtual experiment is developed on Unity real-time 3D platform with Microsoft C# language, and the practical application in the course of “Detection technology” shows that the teaching effect is good.

关 键 词：SI基本单位 量子计量 虚拟实验 原子频标 

分 类 号：G434[文化科学—教育学] TB9[文化科学—教育技术学]