Test & Measurement

Sonar Inspection Robot System

The system surveys interior volume, interrogates structure integrity, and displays real-time video and sonar. Lyndon B. Johnson Space Center, Houston, Texas The robotic inspection device prototype that was used for testing. NASA’s Johnson Space Center innovators have designed a Robotic Inspection System that is capable of surveying deep sea structures such as oil platform storage cells/tanks and pipelines in order to determine the volume of material remaining inside, interrogate structure integrity, and display real-time video and sonar. This inspection device and method could significantly reduce the cost of inspecting, and in the future, provide sampling of the structure contents. The technology is an all-in-one inspection device that includes cameras, sonar, and motion-sensing instruments with hardware and software components. This NASA-developed technology is available for licensing.

Posted in: Briefs, Test & Measurement, Robotics, Inspections, Test equipment and instrumentation

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Modules for Inspection, Qualification, and Verification of Pressure Vessels

This automated, modular, standardized system features interchangeable probes. Lyndon B. Johnson Space Center, Houston, Texas After decades of composite over-wrapped pressure vessel (COPV) development, manufacturing variance is still high, and has necessitated higher safety factors and additional mass to be flown on spacecraft, reducing overall performance. When liners are used in COPVs, they need to be carefully screened before wrapping. These flaws can go undetected and later grow through the thickness of the liner, causing the liner to fail, resulting in a massive leakage of the liner and subsequent mission loss.

Posted in: Briefs, Test & Measurement, Aircraft structures, Composite materials, Inspections, Spacecraft

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Precise Measurements on Earth Enable Further Exploration in Space

Measurement is the first step to success. If you can’t measure something accurately, it can’t be understood or improved. That is especially true for the spacecraft rockets and engines designed to operate under extreme temperatures and pressures at liftoff, or space stations the size of a six-bedroom house that must support people living and working in space for years.

Posted in: Articles, Test & Measurement, Measurements, Test equipment and instrumentation, Spacecraft

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Next-Generation Infrared Technologies Solve High-Speed Automotive Testing Challenges

Higher-speed IR cameras can improve design phase testing. Product research and development on internal combustion engines, brake rotors, tires, and high-speed airbags are just a few of the areas that truly benefit from high-speed, high-sensitivity thermal characterization testing. Unfortunately, traditional forms of contact temperature measurement such as thermocouples are not practical to mount on moving objects, and non-contact forms of temperature measurement such as spot guns — and even current infrared (IR) cameras — are simply not fast enough to stop motion on these high-speed targets in order to take accurate temperature measurements.

Posted in: Articles, Test & Measurement, Optics, Test equipment and instrumentation, Thermal testing

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Creating Advanced Dosimeters Requires Thorough Inspection of Small Components

The McMaster University students will launch the small satellite into low Earth orbit to study the effects of ionizing radiation on the human body. Recent advancements in space technology have resulted in space exploration becoming a rapidly growing field, and the desire for human space exploration is drastically increasing. Previous manned missions include flights to low Earth orbit (LEO), such as to the International Space Station (ISS); however, upcoming flights are planned to go beyond LEO, such as to asteroids and eventually Mars. A major consideration in such missions is that the space environment is significantly different from that of Earth, especially with respect to the radiation environment. This drastic difference results in concerns regarding radiation dose.

Posted in: Application Briefs, Test & Measurement, Sensors and actuators, Radiation protection, Inspections, Test equipment and instrumentation

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Measurement Terminal

The EL3751 EtherCAT terminal from Beckhoff Automation (Savage, MN) provides measurement as part of a standard I/O system. It acquires data at 10,000 samples per second and provides measurement accuracy of ±0.01% for most interfaces at 25 °C, and 24-bit resolution. Parameterization options are available for the analog input, which supports measurement functions U, I, R, DMS (strain gauge), and RTD. Optionally, measured data can be transmitted to higher-level automation devices with oversampling. The integrated distributed clocks ensure synchronized sampling across the EtherCAT system. Available measurements include voltage, current, resistance, electrical resistance, RTD, strain gauge/load cell, and potentiometer. For Free Info Visit http://info.hotims.com/61064-400

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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Digital Measurement

Siemens (Munich, Germany) offers Flender Gearlog digital measurement technology for gears that captures values relating to rotational speed, torque, temperature, and vibration using special sensors that record important physical variables. The aim is to compare operational load spectra with the fatigue strength of individual gear unit components over time to match up the gear unit and the working machine for the long term. The system adds up these readings in parallel with machine capacity utilization. The measurement results are logged, saved, and digitally depicted in compressed form. Operators are able to visualize the results at any time or read them out in the form of a dataset. The measurements enable conclusions to be drawn about the applied load and loading capacity of gears, and can be used to identify possible sources of damage, capacity reserves, and overloading in the measured gear. For Free Info Visit http://info.hotims.com/61064-401

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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