Test & Measurement

USB Hub

ACCES I/O Products, San Diego, CA, announced the USB-104-IHUB rugged, industrial-strength 4-port isolated USB hub that features Tru-Iso™ signal isolation up to 4kV, temperature operation from -40 to 85 °C, high-retention USB connectors, and an industrial steel enclosure for shock and vibration mitigation. The hub expands the number of USB ports and provides up to 4kV isolation between the host computer and connected USB peripherals.

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

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Power Supplies

SL Power Electronics, Ventura, CA, announced the TE240 Series external power supplies. The single-output models are designed for integration with test and measurement equipment and industrial applications. Features include up to 240 Watts of DC power, electrolytic capacitors, and industrial levels of EMC per EN61000-4-X for protecting end-use equipment from harsh electrical environments including 8/15kV for ESD and 4kV for input surge protection.

Posted in: Products, Power Supplies, Test & Measurement

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Achieving Reliable Inline Measurements in Production Environments

One of the most important changes in metrology in the past few decades has been the development of portable measuring devices. This has brought inspection right to the production line, as close to the part as possible. The change—sparked by the development of portable measuring arms and the emergence of laser trackers—has turned conventional industry inspection methods completely upside down.

Posted in: White Papers, Manufacturing & Prototyping, Software, Test & Measurement

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New GASOMETER Design Uses Active Accommodation Offering Significant Improvements Vs. Liquid-sealed Methods

Active Accommodation means using a precision controlled and driven cylinder/piston assembly to collect and measure gas sample volumes without requiring energy to be extracted from the process that generates the gas. The mechanism uses lubricated O-Rings to seal the measuring chamber unlike classical Wet Test Meters that require a water or oil bath to produce an isolation seal.

Posted in: White Papers, Green Design & Manufacturing, Instrumentation, Test & Measurement

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Developing and Testing Electronic Control Units for Electric Drives

Air framers are looking to build more eco-friendly and economical aircraft, and they are turning to electric drives. One growing trend is to build more electrical aircraft by replacing pneumatic and hydraulic systems with electric actuators. Electric drives, therefore, will play an important role in the aircraft of the future. This paper examines the current state of technology for developing and testing electric drives.

Posted in: White Papers, White Papers, Aeronautics, Electronics, Electronics & Computers, Test & Measurement

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Small-Body Testbed

The system can simulate a microgravity environment with a wide range of terrain types and topographies.This technology allows one to test small-body surface mobility and sampling systems in the laboratory. It is capable of simulating a microgravity environment with relevant terrain. The magnitude of the gravity, the terrain properties, and the surface system being tested are all easily modified to allow for a broad range of experimental setups.

Posted in: Briefs, Test & Measurement, Simulation and modeling, Terrain, Test equipment and instrumentation, Test facilities, Test procedures

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Neutral Mounting of Whispering Gallery Mode Resonators for Suppression of Mechanical Frequency Fluctuations

This technology can be used in laser devices, chemical sensing, navigation, aerospace, and scientific instrumentation.NASA’s Jet Propulsion Laboratory has developed a neutral mounting scheme that eliminates the acceleration sensitivity of whispering gallery mode resonators (WGMRs), making them suitable for use in high-precision portable instruments such as optical atomic clocks and high-resolution laser ranging systems. With state-of-the-art WGMR mounting schemes, accelerations induce deformations in the resonator structure, changing its resonant frequency and limiting their usefulness in precision devices. JPL’s novel coaxial mounting scheme is capable of reducing and even eliminating these vibration- and acceleration-induced frequency fluctuations, yielding a WGMR with superior frequency stability that can be used for creating ultra-compact, highly stabilized lasers that are ideally suited for use in spectroscopy, sensing, and frequency metrology applications.

Posted in: Briefs, Instrumentation, Amplifiers, Architecture, Acoustics, Mountings, Reliability

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White Papers

Searching, Exploring and Visualizing Data Using Maple
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Hermetic Feedthroughs Safeguard Mission-Critical Electronics
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Using UV LEDs to Cure Fiber Optic Cables
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Metal Stamping Design Guidelines
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Evaluating the Chemistry of Brake Pads using SEM-EDS
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Metal Finishing White Paper: Electropolishing to Improve Corrosion Protection
Sponsored by Able Electropolishing

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