Test & Measurement

Fundamentals of Vector Network Analysis Primer

One of the most common measuring tasks in RF engineering involves analysis of circuits (networks). A network analyzer is an instrument that is designed to handle this job with great precision and efficiency. Circuits that can be analyzed using network analyzers range from simple devices such as filters and amplifiers to complex modules used in communications satellites.

Posted in: Test & Measurement, White Papers

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Ultrasonic Intake Airflow Meter for Testbeds

The airflow meter measures extremely dynamic phenomena of combustion engines without being affected by ambient influences or sensor contamination. An ultrasonic intake airflow meter for engine testbed applications was developed. An automotive intake airflow meter must fulfill a series of requirements differentiating it from typical ultrasonic flow meters. First, the data sampling rate of the device must be as high as possible to be able to measure dynamic phenomena of the combustion engine. It is therefore necessary to use broadband ultrasonic transducers capable of sending short signals without post-pulse oscillations. The state-of-the-art piezoelectric transducers cannot fulfill these requirements. For this reason, the FLOWSONIX

Posted in: Physical Sciences, Test & Measurement, Briefs

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A Brief History of Modern Digital Shaker Controllers

This article discusses four generations of digital vibration exciter control systems developed by U.S. companies over a period of 40 years. The controllers are categorized as standalone, PC-based, PC-tethered, and fully networked.

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Improving Fidelity of Noise Repetitive Signals with Signal Averaging Technology

For many high-speed data acquisition applications requiring extraction of small repetitive signals from noisy environments, such as LIDAR or optical fiber testing, minimizing the effects of noise is a challenge for system design. Signal averaging provides dependable and efficient results. The article illustrates how FPGA-based signal averaging technology processes signals and reduces noise effects, improving signal-to-noise ratio (SNR) without occupying valuable CPU bandwidth.

Posted in: Test & Measurement, White Papers

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Simplifying Power Added Efficiency Testing

Simplifying Power Added Efficiency Testing In most power added efficiency (PAE) test setups, multiple instruments are used to measure RF, voltage, and current. Measurements may require the use of an RF power meter or digital oscilloscope (DSO) with diode detectors to determine the RF power, while digital multimeters are used to measure voltage and current. The Agilent Technologies 8990B peak power analyzer (PPA) provides an alternative setup which allows power added efficiency testing to be done on a single instrument. Download now!

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Agilent Radar, EW & ELINT Testing: Identifying Common Test Challenges

Discusses signal generation and the characterization of radar receivers and electronic countermeasure (ECM) systems.Get your copy today.

Posted in: Test & Measurement, White Papers

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Agilent Radar Measurements

Starts with a brief review of radar basics then focuses on the fundamentals of measuring basic pulsed radars. It takes a look at adaptations of certain measurements for more complex or modulated pulsed-radar systems and emphasizes the measurement of radar signals for transmitter testingGet your copy today.

Posted in: Test & Measurement, White Papers

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