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Cost of ownership is always a hot topic when making a program decision for any new, upgrade or sustainment option. The criteria for developing a Total Cost of Ownership (TCO) model quickly turns into debates with many facets and lots of emotion. When it comes to the cost of acquiring and operating test equipment, the answer is not any easier to determine. However, if looked at from a Product Life...
There are over 60 .NET languages available today (including their variants) but C# (pronounced C-Sharp) is probably the most common and best suited for ATE instrument driver development. This article will explore the many advantages of using C# over other languages for ATE driver development including reflection, exception handling, threading techniques, auto-implemented properties, partial methods,...
Staying true to Moore's law, portable computing devices have become exceedingly capable of increasing their intended possibilities and applications. Evidence of this can be seen in the quantity and variety of applications ranging from Language Translators, GPS applications, and Image editing, to wireless control of external hardware. The demand has been so great that even the U.S Military has shown...
The US Navy's Consolidated Automated Support System (CASS) family of testers is outfitted with three Ai-710 analog test instruments and provides 96 channels of analog test capability, enabling transition from a traditional serial to a parallel test approach. Most CASS test program sets do not take advantage of parallel test capability, which results in long runtimes. In this paper, the authors will...
The operating models that most organizations have adopted over the past several decades are changing rapidly, and Lockheed Martin has worked with our customers to adapt to the new environment. Automated Test Equipment (ATE) and DoD partnering have played an important role in this adaptation. Insertion of new technologies and commercial best practices has demonstrable benefit through the entire supply...
Effective automated test equipment is built upon the idea of abstracted layers to provide a flexible, robust, and comprehensive test environment. The layers must be plentiful and each one offer abstracted abilities of lower layers. In addition, if a layer is absent, the lack of that layer must not disrupt the ability to use lower ones; a layer must be independent of any higher (observer) layers. This...
Our last paper covered the background, current spiral developments, roll out, and sustainment of the US Army's newest At-Platform Automatic Test Systems (APATS) equipment for TWVs (Tactical Wheeled Vehicles). The equipment, called the SWICE (Smart Wireless Internal Combustion Engine) system, was developed for vehicle diagnostics systems in at-platform and embedded applications, including prognostics...
Department of defense (DoD) maintenance depots face a growing challenge regarding legacy Automated Test Systems (ATS). These systems, which are critical to ensuring mission success, are increasingly difficult to maintain and repair as well as being costly to modernize or replace. According to the General Accounting Office, the DoD has estimated that they will spend billions of dollars to modernize...
Timed failure propagation graph (TFPG) is a directed graph model that represents temporal progression of failure effects in physical systems. In this paper, a distributed diagnosis approach for complex systems is introduced based on the TFPG model settings. In this approach, the system is partitioned into a set of local subsystems each represented by a subgraph of the global system TFPG model. Information...
The IEEE Standard for Automatic Test Markup Language (ATML) for Exchanging Automatic Test Equipment and Test Information via XML (IEEE Std 1671™-2010) and all its `dot' standards have been published and are available from the IEEE. The ATML standards working group is now revising these trial use `dot' standards to match their current XML schemas in line with the full use IEEE Std 1671. The "Common"...
The terms obsolete and obsolescence are heard in almost every industry today. For suppliers and users of test systems facing product obsolescence, these terms represent both opportunities and challenges depending upon one's perspective. For manufacturers of replacement items, it represents new business possibilities, and for those maintaining the systems, it can mean investment and expense. By offering...
This paper describes implementation of software components that allow Visual Basic Test Program Sets (TPSs) to be transportable in different windows environments. Streamlined implementation of these components with regard to backward compatibility ensures transparency to the TPS developer. There is an intermediate layer that exists on all TETS, a United States Marine Corps (USMC) Automated Test Equipment...
Compact and robust automated testing and control solution for the F-15 Jet Fuel Starter and Central Gearbox assemblies utilizing the NI-cRIO family of instrumentation. System design and implementation being performed on a non-interference basis with the customer's current production schedule.
A brief review of some issues seen in the replacement of older special production equipment with COTS will be given followed by an in-depth analysis of the rehost of an older program to a new station, the issues found after it was fielded, and an analysis of what the issues were and a solution from the engineering and managerial viewpoints.
The development of a novel technique for measuring HPA (High Power Amplifiers) AM (Amplitude Modulation) and PM (Phase Modulation) noise is reported. The new method utilizes a dual channel microwave downconverter and a 16-bit high-speed digitizer to directly sample the IF allowing digital demodulation of AM and PM noise simultaneously. A prototype AM/PM noise measurement system has been built with...
Manufacturing test data is often analyzed with the direct goal of increasing production yields and reduction of variance within the product. Six Sigma and statistical process control methodologies are the standard tool sets for analysis of test data. The normal course of events results in the analyst seeking to reduce failures by taking steps to correct the tests that fail most often. Unfortunately,...
Anomalous indications in monitoring equipment onboard U.S. Navy vessels must be handled in a timely manner to prevent catastrophic system failure. The development of sensor data analysis techniques to assist a ship's crew in monitoring machinery and summon required ship-to-shore assistance is of considerable benefit to the Navy. In addition, the Navy has a large interest in the development of distance...
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