There are two common ways to interpret the frequencies between each breakpoint in the Random profile. The most common method is Log-Log (meaning the log of the amplitudes scales with the log of the frequencies.) Another method is Log-Linear, where the log of the amplitudes scales directly with the frequencies).
In this post, we will show how to calculate the acceleration, velocity and displacement RMS values of a Log-Log and Log-Linear Random profile.
Read MoreThe 2022 Sensors Expo & Conference was held during June 27-29 at the McEnery Convention Center in San Jose, California. Over 5,000+ attendees and 200+ exhibitors were in attendance. From sensors and chips to cloud applications, the Sensors Converge Conference presents the latest advancements and training for technical professionals designing the future of high-tech innovations.
Read MoreCrystal Instruments recently updated the Vibration Utilities app (available for iOS and Android). This app supports features assisting in calculations related to the shock and vibration testing industry.
Read MoreCrystal Instruments recently hosted an Experimental Modal Analysis Seminar with Dr. Pete Avitabile at the Crystal Instruments Training Center in Kannapolis, North Carolina. Over the course of three days, participants benefited from lectures by Dr. Avitabile in the morning and received hands-on experience with practical modal testing hardware and software in the afternoon.
Read MoreThe Programming Corner offers resources for custom software integration and/or a way to communicate with our EDM software or Spider devices. This page will feature articles written by our lead engineers and senior product managers that show a quick start into how to code specific API integration, a quick look at the available demo programs and much more in the future.
Read MoreThe ATFX API consists of two DLL files that can be integrated with custom software to directly read and extract data from an ATFX file. This post will show a simple Python & Matlab code example in extracting and creating a DateTimeNano object that has accuracy in nanoseconds.
Read MoreThe ATFX API C# DLL files can be used in three supported coding languages: Python, Matlab and LabVIEW. Fortunately, Matlab has a built-in function to reference C# DLL files and import various properties and functions.
Read MoreThe ATFX API C# DLL files can be used in three supported coding languages: Python, Matlab and LabVIEW. LabVIEW offers visual scripting with node blocks in a block diagram to construct various testing scripts.
Read MoreFrequency Response Function (FRF) is widely used in structural testing. Accelerometers are typically used and the acceleration vs. excitation force is measured as FRFs.
Read MoreCrystal Instruments and Sentek Dynamics presented products and technical presentations during Motion Fest in Israel on May 24, 2022. The event took place at a beautiful outdoor venue to facilitate the networking of over 200 users of Environmental Vibration Testing in the Israeli industry.
Read MoreSpyder is a popular IDE for Python developers in math and science applications. PythonNet is not included in Spyder’s pre-built packages, so the following steps need to be taken to install PythonNet in Spyder.
Read MoreCrystal Instruments and Sentek Dynamics presented products and solutions for environmental vibration testing at the 10th edition, Space Tech Expo USA at the Long Beach Convention Centre, California.
Read MoreThis paper concentrates on the MESA Sine on Random control per MIL STD 810H, method 514.8, annex D, 2.3 category 14. This category governs Sine on Random control for helicopters.
Crystal Instruments designed and released the Spider-80M Multiple-Exciter Single-Axis (MESA) vibration controller in 2018. Further details regarding the MESA testing system are available on the Sentek Dynamics website. Detailed product specifications may be requested from the Crystal Instruments team.
Read MoreThe ATFX API consists of two DLL files that can be integrated with custom software to directly read and extract data from an ATFX file. This post will show a simple C# code example in extracting and creating a DateTimeNano object that has accuracy in nanoseconds.
Read MoreThe ATFX API C# DLL files can be used in three supported coding languages: Python, Matlab and LabVIEW. For the C# DLL files to work in Python, a specific package that allows Python to integrate with .NET Common Language Runtime needs to be installed. There are several packages that do this, such as IronPython and Python.NET. For this example, Python.NET will be used.
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