Posts by Sandeep Mallela
Crystal Instruments EDM 8.1 Release

Crystal Instruments is pleased to announce the release of EDM 8.1, the most advanced featured version of Engineering Data Management software. With this new release, advanced new products have been added to the Crystal Instruments’ family of products along with exciting new features across all EDM modules. Improvements to existing features and bug fixes make this release more user-friendly and robust.

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Automatically Run Pre-Defined Vibration Tests Using Digital Inputs

Combined vibration testing is gaining prominence due to the advancement of test equipment technology driven by the need to accomplish simultaneous testing of multiple measurement quantities.  Vibration testing combined with temperature, humidity or a combination of other quantities has enabled the creation of test environments closely resembling typical scenarios in which DUTs operate.

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Noise Criteria (NC) Curves

Noise Criteria (NC) curves are primarily used to rate indoor noise levels. It is important that the background noise levels are within acceptable limits to ensure optimal speech communication for structures ranging from residences and offices to hospitals and schools.

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Patented Technology & Improved Hardware Extends Spider System Dynamic Range to 160 dB

Crystal Instruments pioneered the concept of using Dual ADCs at each input channel. With the two ADCs working in parallel and set to different voltage ranges, Spiders system can measure low amplitude variations within a high amplitude input signal with great amplitude resolution and accuracy.

With advancements in electronic components and manufacturing, electronic components with lower noise have evolved. Crystal Instruments integrated the advances in electronics into the Spider systems to achieve an additional 10 dB in dynamic range, extending the dynamic range of Spider systems to 160 dBFS. An experimental analysis highlighting this new achievement is published in this article.

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