Sensors/Data Acquisition

New System Allows Buildings to 'Sense' Internal Damage

Researchers at the Massachusetts Institute of Technology have developed a computational model that makes sense of the ambient vibrations that travel up a structure as trucks and other forces rumble by. By picking out specific features in the noise that give indications of a building’s stability, the model may be used to continuously monitor a building for signs of damage or mechanical stress.

Posted in: News, Data Acquisition, Detectors, Sensors

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The Economics of Accuracy in Low-cost, High-volume Sensing Applications

Various research firms forecast the market for portable medical devices to be somewhere around the $20 billion-range within the next several years. Part of the increased demand is due to an aging population with more chronic conditions. These smaller portable units requires devices with smaller footprints. By the same token, smaller devices need to provide adequate levels of care to ensure patient safety and comfort. Thus, functionality cannot be sacrificed for space.

Posted in: White Papers, White Papers, Electronics, Electronics & Computers, Semiconductors & ICs, Data Acquisition, Sensors

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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, Briefs, Electronics & Computers, Sensors, Cyber security, Internet of things

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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, Measurements, Fiber optics, Sensors and actuators

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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, Airframes, Wings, Adaptive control, Fiber optics, Sensors and actuators

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Position Sensors

TE Connectivity (Pennsauken, NJ) announced the HLIR 750 intrinsically safe, 4-20 mA LVDT position sensors that are CSA listed for use in hazardous locations and where an intrinsically safe sensor is required. With stainless steel construction and a hermetically sealed sensor body, these LVDT position sensors provide contactless position measurement for critical applications in gas turbines for fuel valve position feedback, vane pitch servo controls, governor controls, and generator shell expansion measurement.

Posted in: Products, Manufacturing & Prototyping, Motion Control, Sensors

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Solid State Relays

The TS13102 and TS13103 solid state relays from Semtech Corp. (Camarillo, CA) support the company’s Neo-Iso™ Platform, an isolated power/switch management technology. The TS13102 autonomously harvests energy, without the assistance of a microcontroller (and while the switch is closed). The harvested energy, stored in a system capacitor (Csys), can be shared across a system’s multiple channels, driving several loads simultaneously. The TS13103, outfitted with a Power Transfer Output pin (PTO), transfers the harvested energy on the other side of the isolation barrier to the system’s controller. Specific commands are sent through the control line (CLK) to perform a variety of functions, including receiving diagnostic information such as status, fault information, and voltage detection. The control and feedback lines can also be shared across multiple channels. Three address pins allow for up to eight switches on the same control line (CLK).

Posted in: Products, Manufacturing & Prototyping, Sensors

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