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PXI Express DSA suits noise, vibration, and harshness testing.

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PXI Express DSA suits noise, vibration, and harshness testing.
PXI Express DSA suits noise, vibration, and harshness testing.
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June 2, 2014 - Delivering SFDR to -105 dB, EMX-4250 high-density, smart PXI Express multi-channel dynamic signal analyzer (DSA) can sustain 24-bit simultaneous sampling across all channels at rates up to 204.8 KSPS. Aggressive anti-aliasing filtering integrated into front end helps eliminate unwanted signals and reduce measurement errors. Integrated smart signal conditioning allows measurement flexibility; multiple options support range of transducers and signal types, including IEPE and charge.

PXI Express Multi-Channel Dynamic Signal Analyzer for Noise, Vibration, and Harshness Testing

VTI Instruments Corp
2031 Main Street
Irvine, CA, 92614

Press release date: May 20, 2014

Irvine, CA — VTI Instruments is pleased to announce the introduction of its EMX-4250, a high density, "smart" PXI Express multi-channel dynamic signal analyzer (DSA) capable of sustaining 24-bit simultaneous sampling across all channels, up to 204.8 k Samples/Second. This makes it ideal for DSA applications such as: noise vibration and harshness (NVH) analysis, machine condition monitoring, rotational analysis, acoustic test, modal test and general purpose high speed digitization and signal analysis.

The EMX-4250 has been designed to address challenging precision data acquisition applications with aggressive anti-aliasing filtering integrated into the front end that helps eliminate unwanted signals and reduce measurement errors. The instrument delivers a spurious free dynamic range (SFDR) to -105 dB, a key measure of its superior measurement fidelity and an essential design element that ensures that the strength ratio of the fundamental signal of interest is highly accurate. This measurement is critical for frequency domain analysis where distortion typically increases with frequency.

The smart signal conditioning integrated into the EMX-4250 allows it to deliver exceptional measurement flexibility with multiple options that support a wide range of transducers and signal types, including IEPE and charge. It has the flexibility to autorange ±100 mV to ±10 V input ranges in order to maximize signal resolution by automatically selecting the correct range for the input signal level.

The EMX-4250 meets cross channel phase matching of < 0.01°, allowing it to provide uncompromised phase response required for accurate single and cross channel measurements that are common in most dsa applications.

Matlab® and Simulink® design tools simplify implementation, maximize reusability, and provide access to hundreds of standard filters and analysis algorithms. The EMX-4250 is supported by comprehensive, turnkey modal and DSA software packages including X-Modal and Test for I-DEAS. The dynamic signal analyzer application programming interface allows the EMX-4250 to be flexible and best suited for its application and specific development requirements.

Continue to read about the EMX-4250 or find out more about our DSA application solutions.

About VTI Instruments
VTI Instruments delivers precision modular instrumentation and systems for electronic signal distribution, acquisition, and monitoring, used in the world's most demanding test applications. The company's products and systems are used to monitor and record data that characterizes the physical integrity and performance of aircraft, engines, and other large structures, as well as automate the functional testing of complex electronic systems.

VTI is recognized as an industry leader with a reputation of providing reliable data, first time, every time. A sustained focus on innovation and technology enables VTIs customers to optimize their capital investment through product longevity, while ensuring unmatched measurement integrity and data reliability.

VTI Instruments is a unit of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices.

Contact Us:
VTI Sales
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