Special Coverage

Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applications
Evaluation Standard for Robotic Research
Small Robot Has Outstanding Vertical Agility
Smart Optical Material Characterization System and Method
Lightweight, Flexible Thermal Protection System for Fire Protection
Nasa Tech Briefs

Infrared Cameras Support Advanced 3D Printing Efforts

Additive manufacturing (AM), also known as 3D printing, is quite literally one of the most innovative technologies revolutionizing manufacturing today, in terms of both industry “buzz” and thermal properties. Unlike subtractive manufacturing methods such as machining, the growing range of AM technologies creates components directly from a computer model, adding material only where needed. Wohlers Associates, a leading independent consulting firm focused on these technologies, is forecasting that the value of the worldwide AM market will grow to more than $10.8 billion by 2021, up from just $2.2 billion in 2012. That rapid escalation, however, isn't the result of hobbyists buying desktop 3D printers that cost a few hundred dollars.

Posted in: Articles, Cameras, Imaging, Photonics, CAD, CAM, and CAE, Optics, Market research, Technical review, Additive manufacturing

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Wireless Tamper Detection Sensor and Sensing System

The sensors can detect and locate cracks, material strain, or impact damage.NASA's Langley Research Center researchers have developed a wireless, connection-free inductor capacitor sensor system that can be placed on or embedded in materials and structures to monitor for and detect damage. The sensors can also be used to detect package tampering and pilfering. This innovation — SansEC (Sans Electrical Connections) — makes sensors more damage resilient and more environmentally friendly to manufacture and use.

Posted in: Briefs, Sensors, Capacitors, Sensors and actuators, Wireless communication systems, Diagnostics, Packaging

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CERTIFICATES AND SIGNATURES: How to Ensure Authentication in the IoT

On October 21, 2016, the Internet saw a significant distributed denial of service (DDoS) attack, conducted via a botnet comprising many co-opted Internet-connected devices. The attackers of the network infrastructure were able to control these Internet-of-Things (IoT) devices for a number of reasons, including a lack of strong authentication. Loaded software turned the machines into puppets that interfered with Internet traffic for millions of users.

Posted in: Articles, Sensors, Cryptography, Cyber security, Internet of things

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A New Clinical Challenge: Making Sense of Heart Failure

Cardiologist Dr. John Boehmer spends many of his days assisting individuals who have heart disease, a condition affecting approximately 5.7 million US adults, according to the American Heart Association.

Posted in: Application Briefs, Sensors, Cardiovascular system, Diagnosis, Diseases

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Researchers Turn iPhone Camera into Optical Sensor

By integrating an optical Micro-Electro-Mechanical Systems, or MEMS, chip into an iPhone camera, researchers at the VTT Technical Research Centre of Finland have developed a new, cost-effective kind of hyperspectral technology. The spectral device will provide mobile device users and consumers with new ways to monitor their environments, including quick food analysis, health checks, and other Internet-connected sensing. Research team leader Anna Rissanen works actively with companies to enable commercialization and new business development based on the team's various sensors.

Posted in: Articles, Optics, Sensors, Microelectromechanical devices, Optics, Sensors and actuators, Research and development

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NASA Navigation Sensor May Land in Applications Beyond Mars

Although a NASA-built sensor being tested in the Mojave Desert this summer will be used to support the safe landing of rovers on Mars, one of the technology's lead researchers sees other commercial possibilities. Principal Investigator Farzin Amzajerdian and his team at NASA's Langley Research Center developed the Navigation Doppler Lidar, a bread-box-sized sensor system that could someday play a role in aircraft navigation and even driverless car applications.

Posted in: Application Briefs, Sensors, Lidar, Spacecraft guidance, Autonomous vehicles, Entry, descent, and landing, Unmanned aerial vehicles

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SOLVING THE INTERCONNECT CHALLENGE: How to Bring Flexibility to Wearable Design

Micro-Electro-Mechanical Systems (MEMS) are more prevalent than ever, especially in the popular configurations known today as “wearables.” Leading MEMS and sensors in the multitude of wearable technologies include accelerometers, gyros, magnetometers, microphones, UV sensors, glucose monitors, barometers, humidity detectors, and heart rate instruments.

Posted in: Articles, Sensors, Architecture, Microelectromechanical devices, Sensors and actuators, Wireless communication systems

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