Technical Articles

  1. Innovative Design Process Fastracks UAV Laser Comms Development
    9/19/2017

    Using photonics technologies to establish communications in air-to-ground, air-to-air, and air-to-space fields offers many advantages related to transmission speed, low SWaP systems, spectrum regulations, and immunity to electromagnetic interference. This article discusses the additional advantages of using photonics in the design process of UAV laser comms development.

  2. Keeping Up With Moore’s Law: Mass Producing SiP Components With Silicon Photonics Alignment Automation
    9/15/2017

    As advances in computer performance are implemented, extraordinary performance levels will come from the use of silicon photonics, or the integration of optical circuits on semiconductor wafers, instead of the use of electronics. 

  3. Perceptions In Autonomous Driving: Embedding A Multi-Sensor Solution Into A Single Microcontroller Platform
    9/10/2017

    Autonomous driving systems are beginning to make their mark in the world, but questions still remain concerning everything from how different their embedded sensor and perception technologies work together, to how safe these systems really are. These are the types of questions that the LETI research institute of CEA Tech attempted to address when creating its sensor fusion solution intended for autonomous driving applications. This Q&A with a LETI research engineer, Julien Mottin, addresses the SigmaFusion solution, the processes and challenges involved in its design, and the rationale behind embedding it into the AURIX microcontroller platform.

  4. The Eyes Of The Instruments: Using Optical Filters To Observe And Measure Earth From A Different Perspective
    9/6/2017

    An improved ability to manage or understand the natural or influenced phenomena is critical to ensuring that we maintain a healthy planet capable of sustaining humanity as part of its diverse bio-mass. But understanding these phenomena and how they are changing over time requires measurement.

  5. When Custom Costs Less Than Standard: The Benefits And Flexibility Of Custom Optical Assemblies
    8/24/2017

    Optical subsystems exist in a wide variety of configurations for a whole range of applications. Most of the parts that go into such optomechanical assemblies — laser and LED light sources, lenses, dichroics, filaments, detectors, spatial light modulators, and all the associated mechanical fixtures — are available as commercial off-the-shelf (COTS) parts. So it can be tempting to say that if you’re designing a new optical subsystem, you should just purchase the parts and build it yourself. But is that really the right choice? Here are a few questions you might be asking when you’re considering whether to build your own assembly or have it custom-made by an experienced design and manufacturing team.

  6. Precision Explosives Analysis Using High-Speed Imaging
    8/24/2017

    High-speed imaging can be used to quantitatively capture explosions, the resulting damage, and to measure other important parameters of the explosion. The data collected can aid in the understanding and characterization of a detonation.

  7. Frictionless Precision Motion Control Based On Air Bearing Stages - Key Element In Coordinate Measuring And Surface Metrology Applications
    8/23/2017

    The performance of precision metrology equipment such as coordinate measuring machines (CMM) depends on highly accurate, repeatable, and controllable motion systems and position sensors. Air bearings have played a critical role in the development and construction of CMMs and other metrology tools. They are inherently frictionless, highly stable, and feature geometric precision straightness and flatness for linear bearings.

  8. Automotive Precision Assembly: Hexapod 6-Axis Parallel Machines Add High Precision To Conventional Robots
    8/23/2017

    The need for advances robotics with high precision and alignment requirements continues to grow in the automotive industry. Many traditionally used articulated-arm robots are fast and can handle heavy loads, but they lack positioning accuracy. In the past, hexapod parallel kinematic robots were considered overkill for the automotive industry. Now, however, the situation is rapidly changing. This white paper describes the major benefits that hexapod 6-axis parallel machines have for conventional robots in automotive precision assembly lines. 

  9. Engineered Precision Motion Design Benefits From Systems Approach
    8/23/2017

    When controlling motion at the sub-micrometer or nanometer levels for alignment and handling applications, it is imperative to have high reliability, robustness, minimized latency, and high-speed synchronization with external devices to reach sub-micrometer path accuracy. The higher the dynamics and throughput targets of a multi-axis precision motion system, the more holistic the design approach must be in order to achieve success. A systems approach where the mechanics, control electronics, and software are designed by the same team provides a great amount of benefits for the user.

  10. When Lightning And Rods Connect
    8/14/2017

    Marcelo Saba is a modern-day Doc Brown–except that instead of capturing lightning to power a DeLorean time machine in Back to the Future, Saba captures lightning with high-speed cameras to not only advance the understanding of how lightning connects with lightning rods, but also provide the field data necessary to improve current lightning protection systems.