Sensors/Data Acquisition

Harness-Mounted Computer Improves Communication Between Dogs and Humans

North Carolina State University researchers have developed a suite of technologies that can be used to enhance communication between dogs and humans. The communication tool enables applications in search-and-rescue operations and pet training. “We’ve developed a platform for computer-mediated communication between humans and dogs that opens the door to new avenues for interpreting dogs’ behavioral signals and sending them clear and unambiguous cues in return,” says Dr. David Roberts, an assistant professor of computer science at NC State and co-lead author of a paper on the work. “We have a fully functional prototype, but we’ll be refining the design as we explore more and more applications for the platform.”The platform itself is a harness that fits comfortably onto the dog, and which is equipped with a variety of technologies.“Dogs communicate primarily through body language, and one of our challenges was to develop sensors that tell us about their behavior by observing their posture remotely,” Roberts says. “So we can determine when they’re sitting, standing, running, etc., even when they’re out of sight." A harness-mounted computer transmits data wirelessly. The technology also includes physiological sensors that monitor things like heart rate and body temperature. The sensors not only track a dog’s physical well-being, but can offer information on a dog’s emotional state, such as whether it is excited or stressed.SourceAlso: Learn about a Communication Monitoring System for Enhanced Situational Awareness.

Posted in: Electronics & Computers, Sensors, Test & Measurement, Monitoring, Communications, Wireless, News

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University Opens New Ballistics and Impact Dynamics Lab

Wichita State University’s National Institute for Aviation Research recently opened a new ballistics and impact dynamics research lab in the former Britt Brown Arena at the Kansas Coliseum. The new ballistics lab, part of NIAR’s environmental Test Labs, uses a custom built ballistic firing device to propel 22-50 caliber rounds into components inside a concrete containment building. The test is designed to simulate the impact of a structural failure on the aircraft.

Posted in: Cameras, Imaging, Data Acquisition, Test & Measurement, Monitoring, Aerospace, Aviation, Defense, News

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Sensors Monitor Aircraft Structural Health for Safer Flights

Nine Delta Air Lines commercial aircraft flying regular routes are carrying sensors that monitor their structural health along with their routine maintenance. These flight tests are part of a Federal Aviation Administration (FAA) certification process that will make the sensors widely available to U.S. airlines.

Posted in: Sensors, Test & Measurement, Monitoring, Aerospace, Aviation, News

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Biomimetic Photodetector “Sees” in Color

Rice University researchers have created a CMOS-compatible, biomimetic color photodetector that directly responds to red, green, and blue light in much the same way the human eye does. The new device uses an aluminum grating that can be added to silicon photodetectors with CMOS technology.

Posted in: Electronics & Computers, Photonics, Sensors, Detectors, News

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Researchers Develop Thinnest Electric Generator

Researchers from Columbia Engineering and the Georgia Institute of Technology made the first experimental observation of piezoelectricity and the piezotronic effect in an atomically thin material, molybdenum disulfide (MoS2), resulting in a unique electric generator and mechanosensation devices that are optically transparent, extremely light, and very bendable and stretchable.“This material—just a single layer of atoms—could be made as a wearable device, perhaps integrated into clothing, to convert energy from your body movement to electricity and power wearable sensors or medical devices, or perhaps supply enough energy to charge your cell phone in your pocket,” says James Hone, professor of mechanical engineering at Columbia and co-leader of the research.Hone’s team placed thin flakes of MoS2 on flexible plastic substrates and determined how their crystal lattices were oriented using optical techniques. They then patterned metal electrodes onto the flakes. In research done at Georgia Tech, a group led by Zhong Lin Wang, Regents’ Professor in Georgia Tech’s School of Materials Science and Engineering, installed measurement electrodes on the samples provided by Hone’s group, then measured current flows as the samples were mechanically deformed. They monitored the conversion of mechanical to electrical energy, and observed voltage and current outputs.Ultimately, Zhong Lin Wang notes, the research could lead to complete atomic-thick nanosystems that are self-powered by harvesting mechanical energy from the environment. This study also reveals the piezotronic effect in two-dimensional materials for the first time, which greatly expands the application of layered materials for human-machine interfacing, robotics, MEMS, and active flexible electronics.Source Also: Learn more about a Piezoelectric Energy Harvesting Transducer System.

Posted in: Electronics & Computers, Electronic Components, Electronics, Power Management, Materials, Metals, Sensors, Semiconductors & ICs, News

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No-Power Wi-Fi Connectivity Could Fuel Internet of Things

Imagine a world in which your wristwatch or other wearable device communicates directly with your online profiles, storing information about your daily activities where you can best access it, all without requiring batteries. Or, battery-free sensors embedded around your home that could track minute-by-minute temperature changes and send that information to your thermostat to help conserve energy.

Posted in: Electronics & Computers, Power Management, Sensors, Test & Measurement, Monitoring, Communications, Wireless, RF & Microwave Electronics, News, Products

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Imaging System Obtains More Color Information than Human Eye

Researchers at the University of Granada have designed a new imaging system capable of obtaining up to twelve times more color information than the human eye and conventional cameras, which implies a total of 36 color channels. The important scientific development will facilitate the easy capture of multispectral images in real time.The technology could be used in the not-too-distant future to create new assisted vehicle driving systems, to identify counterfeit bills and documents, or to obtain more accurate medical images than those provided by current options.The scientists, from the Color Imaging Lab group at the Optics Department, University of Granada, have designed the new system using a new generation of sensors, in combination with a matrix of multispectral filters to improve their performance.Transverse Field Detectors (TFDs) extract the full color information from each pixel in the image without the need for a layer of color filter on them.In order to do so, the TFDs take advantage of a physical phenomenon by virtue of which each photon penetrates at a different depth depending on its wavelength, i.e., its color. In this way, by collecting these photons at different depths on the silice surface of the sensor, the different channels of color can be separated.SourceAlso: Learn about Imaging Space System Architectures.

Posted in: Cameras, Imaging, Sensors, Detectors, Medical, News, Automotive

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