从计量角度探讨机载ATE技术指标的确定

通过分析由目前机载ATE给出的技术指标进行计量时存在的问题,根据机载ATE的特点,提出机载ATE指标确定的原则与基本依据,确保对机载ATE有效、准确地计量校准.     

探讨降低ATE测量不确定度的方法

由于机载ATE的多样性和复杂性,使得影响其测量不确定度的因素多.本文针对机载ATE计量校准的特点,从分析测量不确定度的来源入手,针对计量过程中不确定度引入的实际情况,介绍了减少机载ATE测量不确定度的方法.     

远程计量校准技术研究

对远程计量校准技术进行了全面的论述,阐述了远程校准的概念、远程校准技术的优点,以及开展远程校准技术的意义和国际上的最新动态.最后介绍了一种将互联网技术应用到现场计量校准工作中的远程计量校准模式.     

机载ATS闭环计量保障模式探讨

针对ATS的原位计量校准以及内部计量链计量校准两种方案中存在的问题,根据计量校准系统的设计原则,提出原位计量与离位计量相结合的三级计量保障模式,实现了对ATS的闭环控制。     

谈专用测试设备校准规范编写

校准规范是实施校准的基础。编写专用测试设备校准规范是一项非常重要的工作，它是计量保证的基本要求。本文论述了编写组的组成、编写工作程序、校准项目及校准方法、测量标准设备的选择以及校准时间间隔。     

远程计量校准技术研究

对远程计量校准技术进行了全面的论述，阐述了远程校准的概念、远程校准技术的优点，以及开展远程校准技术的意义和国际上的最新动态。最后介绍了一种将互联网技术应用到现场计量校准工作中的远程计量校准模式。     

并行校准技术在航空装备计量保障平台中的应用

概述了并行校准的概念和实现方式,并在航空装备计量保障平台上运用了多线程并行校准技术,有效地提高了校准效率；同时,简述了在平台上使用的组件技术和数据结构.最后通过试验验证了所用方法的有效性.     

通用自动化校准与信息管理系统设计方法

目前,针对不同类别仪器设备的校准已逐步实现自动化,但是,各自动化校准程序所使用的开发平台各不相同,且互不兼容,无法统一管理。校准流程中的各项信息没有统一的管理平台,无法实现信息的即时查询和管理。为了解决自动化校准工作的标准化和规范化问题以及校准流程中的信息管理问题,设计了一套通用自动化校准与信息管理系统。通过建立数据库,收集校准流程中的各项数据信息,实现信息的即时显示、查询和调用。依据检定规程或校准规范,开发各类设备的自动化校准程序,校准完成后生成格式统一的原始记录并自动生成校准证书。     

现场温湿度校准系统

介绍一套温湿度校准系统,用于多台环境试验设备温度、湿度参数的校准,其系统是由高精度的铂电阻温度传感器、湿度传感器、数据采集单元和校准软件组成,实践证明,该校准系统已经成功应用于环境试验设备的温度和湿度进行自动校准,提高了计量校准的工作效率.     

ATE综合校准系统的软件设计及实现

通用自动测试设备（ATE）的测量准确性、可靠性会直接影响飞机综合保障的质量,因此,对此检测设备进行全面有效的测试校准,是确保测试系统完成任务的关键。为了保障测试数据准确可靠和量值传递统一及实现现场的系统性校准工作,本课题以通用自动测试设备为对象,建立了一套基于虚拟仪器技术基础上的综合校准系统。本文对系统的软件结构设计进行了分析和设计,以LCOD原型生命周期为基础,使用了面对组件的设计模式,设计和实现了软件功能,使得该系统具有一定的兼容性和可移植性,并且为扩展留下了接口,同时保证了校准数据的可靠性和精确性。     

Applying independent verification and validation to the automatictest equipment life cycle

Automatic Test Equipment (ATE) is becoming increasingly more sophisticated and complex, with an even greater dependency on software. With the onset of Versa Modular Eurocard (VME) Extensions for Instrumentation (VXI) technology into ATE, which is supposed to bring about the promise of interchangeable instrument components. ATE customers are forced to contend with system integration and software issues. One way the ATE customer can combat these problems is to have a separate Independent Verification and Validation (IV&V) organization employ rigorous methodologies to evaluate the correctness and quality of the ATE product throughout its life cycle. IV&V is a systems engineering process where verification determines if the ATE meets its specifications, and validation determines if the ATE performs to the customer's expectations. IV&V has the highest potential payoff of assuring a safe and reliable system if it is initiated at the beginning of the acquisition life cycle and continued throughout the acceptance of the system. It is illustrated that IV&V effects are more pronounced when IV&V activities begin early in the software development life cycle, but later application of IV&V is still deemed to have a significant impact. IV&V is an effective technique to reducing costs, schedule, and performance risks on the development of complex ATE, and a “tool” to efficiently and effectively manage ATE development risks. The IV&V organization has the ability to perform a focused and systematic technical evaluation of hardware and software processes and products. When performed in parallel with the ATE development life cycle, IV&V provides for early detection     

校验型机载接收机自动标校系统的设计与实现

飞行校验系统作为一个测量认证系统需要有足够高的测量精度,为了保障飞行校验的准确性和可靠性,必须对接收机进行定期标校。对测试系统的软硬件连接作了介绍,重点研究了标校系统中的信号源控制技术以及自动标校算法,实验表明,自动标校系统标校精度能够满足实际工作要求。     

VXI总线仪器自动计量校准系统的研究

VXI总线仪器由于其性能优越且软，硬件体系具有开放性，在航空，航天，电子通信，交运运输，军事等领域得到广泛的应用。作为一种自动测量设备，VXI总线仪器自身的计量校准也是必要的，不可回避的。本文结合作者的研究课题，阐述了进行VXI总线仪器校准的必要性和特殊性，分析比较了几种VXI总线仪器校准方案，组建了一套自动校准系统，论述了校准软件的结构及软件误差的控制措施，最后展望了VXI总线仪器校准的发展方向。     

Implementing reusable, instrument independent test programs in thefactory

Development of computer programs that control test sequences on Automatic Test Equipment (ATE) is costly and time consuming. Test Programs are usually written by specifying the instruments to be used in the ATE and the sequence of the setup and measurement parameters for these instruments. Reuse of test program software on other ATE is usually not possible without rewriting, revalidating and re-releasing the programs. This paper describes an implementation of a test program software development system and a standard of software runtime architecture used in our factories. The object-oriented development environment and its associated class libraries allow test programs to be written without knowledge of the ATE on which they will be run. Two main principles guided the design: the software architecture was based on recognized formal and industry standards; and our implementation used commercial off-the-shelf software products when possible. Emerging standards such as the IEEE-1226 (ABBET) as well as defacto industry standards including VXI Plug and Play have made our implementation possible. The current draft of the ABBET and P&P standards do not promote this instrument independence, but it is hoped that this will be added as the standards mature. Three immediate benefits are: cost savings that result from reusing validated test programs; cycle time reductions that result from concurrently developing test program software and ATE; and software defect reductions that result from using proven software     

专用测试设备的校准与管理

专用测试设备在武器装备质量控制、性能评定、技术指标验证等方面有着广泛的应用,其测试数据是否准确可靠直接影响到装备的质量。专用测试设备的校准与管理是摆在国防军工计量部门面前的一项重要课题。本文分析专用测试设备的特点、现状,并就开展专用测试设备的校准及管理中应注意的问题进行了深入探讨。     

专用电子测试设备系统校准方法研究

介绍专用电子测试设备系统校准的方法，以及在实际工作中是如何实现专用电子测试设备系统静态，动态校准和如何编制校准软件实现自动校准。     

基于TestStand的计量软件介绍

使用计量软件对程控仪器进行自动化计量检定能显著提高工作效率。传统的计量软件开发周期长、工作量大,TestStand提供了一种模块化快速开发计量软件的方法。首先介绍了TestStand的特点、构架及其用途,然后引出并着重介绍了基于TestStand技术开发计量软件的方法和步骤。基于TestStand的计量软件易开发、易使用、易维护,具有很强的实用性。     

Sustainment of legacy automatic test systems: lessons learned on TPS transportability

Sustainment of legacy automatic test systems (ATS) saves cost through the re-use of software and hardware. The ATS consists of the automatic test equipment (ATE), the test program sets (TPSs), and associated software. The associated software includes the architecture the TPSs run on, known as the control software or test station test executive. In some cases, to sustain the legacy ATS, it is more practical to develop a replacement ATE with the latest instrumentation, often in the form of commercial off-the-shelf (COTS) hardware and software. The existing TPSs, including their hardware and test programs, then need to be transported, or translated, to the new test station. In order to understand how to sustain a legacy ATS by translating TPSs, one must realize the full architecture of the legacy ATS to be replaced. It must be understood that TPS transportability does not only include translating the original TPS from an existing language (such as ATLAS) to a new language (such as "C") to run on a new test station, but includes transporting the run-time environment created by the legacy ATS. This paper examines the similarities and differences of legacy ATE and modern COTS ATE architectures, how the ATS testing philosophy impacts the ease of TPS transportability from legacy ATE to modern-day platforms, and what SEI has done to address the issues that arise out of TPS transportability.