Sensors/Data Acquisition

Learning the "Keys" of IoT Security

Network-connected devices provide many opportunities to improve and enrich people’s lives, but the “Internet of Things” has a range of definitions. A consumer’s experience with the “IoT” may be a wearable computer for fitness tracking. A physician may place a connected heartbeat monitor on a patient. An industrial engineer may see the Internet of Things as thousands of sensor points that provide measurements of temperatures, pressures, or valve states.

Posted in: Articles, White Papers, Electronics & Computers, Sensors

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CryoFOSS Optical Sensor Offers Next-Level Liquid Measurement

NASA engineer Allen Parker and a team at Armstrong Flight Research Center have developed a fiber-optic-based sensing technology that accurately pinpoints and measures liquid levels. The CryoFOSS, or Cryogenic Fiber Optic Sensing System, uses fiber optic Bragg sensors, located along a single cable, to actively discern between liquid and gas states. The technology can be employed in a variety of applications, from NASA’s rockets to a winery’s storage tanks.

Posted in: Articles, Sensors

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NASA Sensor Supports Flexible Aircraft Design

A NASA-developed fiber optic sensor provides the kind of detailed feedback that could guide the direction of flexible wings and other next-generation aerospace parts. The multi-core fiber (MCF) contains light reflectors, known as fiber Bragg gratings, that reveal shape and position in three dimensions.

Posted in: Application Briefs, Aerospace, Sensors

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Healthy Sensing: Do You Know When Your Proximity Sensor Is Sick?

The age of the fully connected aircraft is upon us and it isn’t coming a minute too soon to meet the demands of today’s commercial aircraft. The integration of smart components helps to increase revenue and reduce the cost to serve. Honeywell has designed and implemented the patented FAVCO (Fixed Amplitude Variable Current Oscillator) technology, which allows for continuous health monitoring capable of detecting the majority of circuit and sensor faults.

Posted in: White Papers, White Papers, Aerospace, Defense, Sensors

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Energy Harvesting's Emerging Role in a 'Smarter' World

When most individuals hear “energy harvesting,” they often think of alternative energy sources like wind and solar power. There is a distinct difference, however, between alternative energy and energy harvesting, or EH, approaches, based on the amount of power each can generate.

Posted in: Articles, Sensors

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Smartphone Video Guidance Sensor

The need arose to apply the state determination algorithms developed for the Advanced Video Guidance Sensor autonomous rendezvous and docking (AR&D) sensor onto a commercial off-the-shelf (COTS), smartphone-based platform to create a lower-mass, lower-cost sensor for small satellite and CubeSat applications. Prior techniques used for state determination suffer one or more of the following problems: large mass, large volume, high cost, or computationally intensive calculations.

Posted in: Briefs, Tech Briefs, Sensors

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Integrated Temperature and Capacitive Ablation Recession Rate Sensors

Innovators at NASA’s Glenn Research Center have developed new sensors that can be integrated into thermal protection systems (TPS) to protect them from environmental damage. Radiation, shock, and ablation (erosion of the protective outer surface) combine to damage the TPS material, so it becomes crucial to determine the temperature and rate at which the TPS material deteriorates. Glenn has developed an improved method to bulk-manufacture silicon carbide (SiC) devices that enables sensors to be manufactured economically. Additionally, this technique permits the simultaneous production of SiC sensors of different types (e.g., pressure sensors, flow sensors, and accelerometers) from the same SiC wafer. Glenn’s development holds great potential for any industry that requires sensors and monitoring of temperature, corrosion, or environmental damage.

Posted in: Briefs, Sensors

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