Test & Measurement

Building a Test System for High-Speed Data Streaming Applications

High-speed data streaming applications typically require maximum accuracy and long sampling times, including such applications as spectral monitoring, signal intelligence, LIDAR testing, optical fiber testing, radar and satellite signal acquisition, and software defined radio systems. These present unique engineering challenges requiring high throughput, and identifying design flaws and problems can contribute to reduced development costs and time to market, avoiding field recalls and costly system redesigns. The white paper discusses techniques for optimizing configuration of systems supporting high-bandwidth applications, by: Enabling high-speed real-time data streaming Designing applications optimizing system streaming performance Furnishing benchmarks that can be achieved in stream-to-disk and stream-to-memory applications

Posted in: Test & Measurement, White Papers

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Using Acoustic Beamforming for Pass-By Noise Source Detection

This application note discusses a technique known as beamforming for determining noise location of passing vehicles. The technique has several challenges including simultaneous acquisition of a large sensor array, advanced signal processing and storage of extremely large data sets, and the environmental considerations required for operating outdoors on a test track. This application note recommends best practices for performing beamforming and walks through the complete system required from the test environment to the sensors to the math, analysis, and data storage with the goal of the reader being able to apply the technique.

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Bridging the Armament Test Gap

An armament test gap exists today across legacy 4th and 5th generation aircraft due to the inability of current generation test equipment to adequately test the armament required to support smart weapons. The MTS-3060 SmartCan™ Universal O-Level Tester represents a paradigm shift away from the traditional one-for-one test equipment replacement approach and a quantum leap in capabilities available to maintainers on the flightline who are working within the constraints of shrinking budgets. Read the full white paper to learn more.

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Implementation of Real-time Spectrum Analysis

The keys to real-time spectrum analysis are to provide parallel sampling and FFT calculations so the data acquisition continues while the FFT’s are performed, and to provide fast enough DSP processing of FFT algorithms to keep up with the sample rate at the input. This white paper discusses the technical implementation of the real-time process in the Rohde & Schwarz real-time analyzers, and the applications for use of this analysis capability in the troubleshooting and test of modern designs.

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Oscilloscope Fundamentals

The oscilloscope is arguably one of the most useful tools ever created for use by electronic engineers. In the more than five decades since the modern analog oscilloscope was created, hundreds of useful documents and thousands of articles have been written about what it is, how it works, how to use it, and application-specific examples of the “oscilloscope” in action. It is the purpose of this primer to instead describe digital oscilloscopes, which have for practical purposes replaced their analog predecessors in the vast majority of applications. Covered here is a short description of the oscilloscope’s origins, its transition from analog to digital, types of digital oscilloscopes and their major subsystems, key benchmark specifications, and measurements.

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Troubleshooting EMI in Embedded Designs

Today, engineers need reliable data fast, and to ensure compliance with regulations for electromagnetic compatibility in the most economical way, appropriate measures must be taken early in the design phase. This paper provides a brief introduction to embedded EMI troubleshooting challenges and how to use a digital oscilloscope to debug the two key culprits of EMI – switching power supplies and power amplifiers. The Rohde & Schwarz R&S®RTO series oscilloscope provides time correlated multi-domain analysis often required to troubleshoot the complex time and frequency domain embedded design challenges.

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Hybrid and Electric Vehicle Test System

SAKOR Technologies, Inc. (Okemos, MI) designed and installed a complete turnkey Hybrid and Electric Vehicle Test System for UQM Technologies, Inc. (Longmont, CO), a manufacturer of high-efficiency electric propulsion systems. UQM will use the system to test inverters and traction motors for use in hybrid and electric vehicles for the automotive, commercial truck, bus, and military markets.

Posted in: Batteries, Power Supplies, Electronics, Power Management, Energy Efficiency, Test & Measurement, Transportation, Products

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