Sensors/Data Acquisition

Breathalyzer Replaces Blood Test

In the future, breathalyzers will not just be used by police checking for alcohol intoxication, but also for testing the condition of athletes, and for people who want to lose weight. When exactly the body begins burning fat can now be determined by analyzing, for example, biomarkers in the blood or urine. Scientists have now developed a method for the real-time monitoring of lipolysis by testing a person’s exhalations during exercise.

Posted in: INSIDER, Data Acquisition, Sensors
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New Generation of Fluorescence-Based Sensors

Researchers have designed and tested a series of plasmonic nanoantenna arrays that could lead to the development of a new generation of ultrasensitive and low-cost fluorescence sensors that could be used to monitor water quality.

Posted in: INSIDER, Sensors
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PC-Board-Mountable Corrosion Sensors

Corrosion is a pervasive and expensive problem in applications ranging from construction to microelectronics. Corrosion has been widely studied in theories, and empirical studies exist for common materials, material combinations, and myriad environmental conditions. In order for microelectronic devices to perform and function properly, high-reliability packaging is important. Failure of microelectronic devices and packages not only causes a malfunction of the devices themselves, but can lead to catastrophic events for entire systems, which may cause loss of life, property, and safety.

Posted in: Briefs, Sensors
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Gas Sensing System Employing Raman Scattering

The detection and characterization of molecular gases in a sample is a relatively difficult challenge. Usually, this task is relegated to expensive and time-consuming processes like mass spectrometry and gas chromatography. Furthermore, numerous industrial applications require such gas-phase analysis for pollution and process control; for example, in large, natural-gas-fired turbine electricity generators, large quantities of natural gas are mixed with air and burned. Because natural gas comes from a variety of sources, the composition of the gas changes often. If the composition of natural gas were known a-priori, turbine efficiency could be improved by adjusting the fuel/air mixture and other operating parameters. This control capability requires measurement of the components of the natural gas to better than 0.1% accuracy, with the measurement being performed at least once every second. There is currently no commercially available sensor or sensing system that can measure all of the natural-gas components in one second.

Posted in: Briefs, Sensors
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AUGMENTED REALITY: Beyond Gaming to Real-World Solutions

Ask a stranger off the street what Virtual Reality (VR) is or how it works, and most people will have some inclination of what the technology entails; however, ask that same person about Augmented Reality (AR), and the answers are less likely to be easily gained. Maybe someone will talk about the gaming aspect of the technology, or its earliest incarnation in the failed Google Glass.

Posted in: Articles, Data Acquisition, Simulation Software
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Wireless Temperature Sensor Having No Electrical Connections, and Sensing Method for Use

NASA's Langley Research Center has developed a robust wireless temperature sensor that does not require an electrical connection. The temperature sensor is built on NASA's SansEC sensor platform, which takes advantage of measuring dielectric changes. The temperature sensor is damage-tolerant, wireless, flexible, precise, and inexpensive. One promising application is for tire temperature sensors.

Posted in: Briefs, Sensors
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Lightweight, Crack-Resistant, Silk Composite Sensor

New lightweight, energy-saving composites that won't crack or break even after prolonged exposure to environmental or structural stress are needed in industries such as civil infrastructure for bridges and buildings, consumer products, and aerospace. To help make that possible, a method was developed to embed a nanoscale damage-sensing probe into a lightweight composite made of epoxy and silk. The probe, known as a mechanophore, could speed up product testing, and potentially reduce the amount of time and materials needed for the development of many kinds of new composites.

Posted in: Briefs, Sensors
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Polymeric Thermal History Sensor

Items such as food and pharmaceuticals exposed over time to temperatures outside the specified range can pose a serious health risk. Determining the heat exposure history of these items is a key step in addressing these issues. In particular, there is a need for determining when an item has been exposed to specific temperatures, how long such exposures occurred, in what order they occurred, and the expected remaining shelf life of an item.

Posted in: Briefs, Sensors
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Fast, Sensitive Hydrogen Sensor

Hydrogen is a promising potential fuel for cars, buses, and other vehicles, and can be converted into electricity in fuel cells. It already is used in medicine and space exploration, as well as in the production of industrial chemicals and food products.

Posted in: Briefs, Sensors
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The 2017 OEM Sensors Supplier Guide

The editors of September’s Sensor Technology magazine compiled a list of top sensor vendors, organized by product type. Explore this year’s OEM Sensors Supplier Guide.

Posted in: News, Data Acquisition, Detectors, Sensors
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