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Welcome to our first issue of Test Connections for 2015. With a successful 2014 behind us, we look forward to working with you in 2015, supplying innovative test solutions and unrivaled long term support. Steve Sargeant, CEO
We hope you enjoy this month's issue of Test Connections which includes new product updates and news events.
Please send your comments or suggestions regarding this newsletter to marketing@MarvinTest.com.
"Addressing Legacy and Future Test Needs for Mission Critical Modules and Systems Using the PXI Platform"Beginning in the late 1960s, proprietary ATE systems were deployed by a wide range of customers for the functional test and verification of high value, mission critical products including board & box level avionics, depot level test & repair of armament and avionics electronics, and communications / satellite subsystems. These test systems are now obsolete, however the products (and their derivatives) originally tested on these platforms are still in use and need to be maintained. Consequently, there is an on-going need to either maintain these obsolete systems or migrate the applications and the legacy system’s capabilities to a modern test platform. This paper provides and overview of how the PXI architecture, and associated instrumentation and software can provide the basis for a modern functional test platform that can effectively support both legacy ATE functionality as well as future functional test needs.
"A Portable, Engineering-Design Partnership to Replace Obsolete Test Systems"To address the need to replace obsolete support equipment for the USAF’s A-10 aircraft, the USAF's 309th Software Maintenance Group (SMXG) at Hill Air Force Base developed the PATS (Portable Automated Test Set)-70 which supports the testing of various A-10/C systems on the flightline. Based on Marvin Test Solutions' MTS-207 COTS platform, a state-of-the-art, ruggedized, portable PXI-based test system designed for flightline, back shop, and airborne applications; this paper provides and overview of how the MTS-207 provided the USAF with the necessary flexibility to add specific test instrumentation to support the A-10/C's flightline test needs.
"Instrument, Hardware and Software Simulation in a Test System"This paper reviews the requirements and methods associated with executing a test program application in simulation mode. Simulation involves the execution of an application with a subset of instrumentation or without any instrumentation and with or without the Unit Under Test (UUT). When operating In simulation mode, some of the instruments or the UUT may not exist, which requires that the simulation environment filter and mask out errors as well as be able to return different values for various application states. This paper details how simulation is implemented and supported by the ATEasy software development environment.
"Instrument Certification as part of a Modular Test platform Architecture"The use of PXI modular test systems for depot, intermediate, and factory test applications has increased dramatically in the last two decades. The flexibility and configurability associated with PXI has also created new challenges for the calibration and certification of these systems. This paper reviews how the use of an in-system standards module can form the basis for implementing a system level re-certification strategy. By employing a standards module within the system, recertification logistics and maintenance can be simplified, resulting in extended system up time and offering test managers added flexibility for supporting in-house certification of the system and system components.
The intent of MIL-STD-1760 (also known as just "1760") was to simplify the integration of new weapons onto existing platforms. Prior to the introduction of 1760, the integration cost of a new weapon system was over $100 million dollars (in 1980 dollars). With 1760, integration costs shrank to under $25 million which was a significant improvement.As with all good inventions, there’s always a "but" and 1760 was no exception. Most field and flightline test sets for armament were deployed over three decades ago and as such, were not suitable to test the "smart" interface of MIL-STD-1760. And unlike legacy systems, the aircraft is expecting to have a carriage store present in order to keep the interface active. Immediately after powering up the 1760 interface, the aircraft sends a MIL-STD-1553 transmission that can be translated to "who’s out there".
TS-960 Test System
The GX5296’s timing generator supports 4 timing phases and windows (drive and sense timing). Each phase and window is comprised of two timing edges - assert / de-assert and an open window / close window respectively. Using the GX5296’s timing generator, these edges can be programmed with a resolution of 1ns, providing the needed flexibility and functionality for AC parametric test and complex bus emulation. These four time sets are available for mapping edge timing to each channel and additionally, these four time sets can have up to 64 unique time set value combinations which can be changed on the fly, for each sequence step. With this timing flexibility and edge resolution, the GX5296 can easily emulate and validate complex bus cycles as well as validate a device’s timing.
ECN Magazine, January 2015, "The Extreme Environment of MILSPEC"Military and Aerospace Electronics, Feb. 10, 2015, "Lockheed Martin Space Systems Chooses Marvin's GENASYS Test Equipment for Satellite Electronics"
Marvin Test Solutions, a vertically-integrated aerospace test and measurement company, has created and delivered innovative, reliable test systems for factory,
depot, intermediate, and flightline use since 1988. Our expertise delivering aerospace precision underpins our manufacturing solutions, enabling us to quickly
meet customers’ requirements with high-performance products and custom turnkey systems, backed by excellent long-term customer support.