数字式气压高度表校准方法的研究  

Research on calibration method of digital barometric altimeter

作　　者：丁红英[1] 于贺军[1] 李建英[1] Ding Hongying;Yu Hejun;Li Jianying(CMA Meteorological Observation Center,Beijing 100081,China)

机构地区：[1]中国气象局气象探测中心,北京100081

出　　处：《电子测量技术》2020年第22期175-178,共4页Electronic Measurement Technology

摘　　要：针对国家检定规程JJG 683-1990《气压高度表》适用范围的局限性,提出了一种通过自动控制气压值来校准数字气压高度表高度值的方法。介绍数字式气压高度表工作原理与设计结构,阐述了使用气压值校准高度值的方法原理,建立了高度误差与气压的测量模型,搭建了数字式气压高度表校准系统,在此基础上开展了多组高度示值误差重复性校准试验,并对试验结果不确定度进行评定分析。试验结果表明,该校准方法科学合理、简单可行,本方法有效保障数字式气压高度表测量准确性和可靠性。In view of the limitation of the method of national regulation JJG 683-1990《barometric altimeter》,a method to calibrate the altitude value of digital barometric altimeter by automatically controlling the air pressure value is proposed.Introduce the working principle and design structure of digital barometric altimeter,expounds the method and principle of calibrating altitude value with air pressure value,establishes the measurement model of altitude error and air pressure,and builds the calibration system of digital barometric altimeter.On this basis,it carries out multiple groups of repeated calibration tests of altitude indication error,and evaluates and analyzes the uncertainty of test results.The test results show that the calibration method is scientific,reasonable,simple and feasible.This method can effectively guarantee the accuracy and reliability of the digital barometric altimeter.

关 键 词：数字式气压高度表 高度校准 气压控制 不确定评定 校准方法 

分 类 号：TN06[电子电信—物理电子学]