Sensors/Data Acquisition

Precision Detector Conductance Definition via Ballistic Thermal Transport

This innovation could be applied in the development of bolometric detector array sensors. Goddard Space Flight Center, Greenbelt, Maryland The characteristics of a thermal detector, such as sensitivity, response time, and saturation power (or energy resolution), are functions of the thermal conductance of the detector to its cryogenic environment. The thermal conductance is specified to achieve a tradeoff among the highest sensitivity, allowed response time, and the desired saturation energy or power budget for the particular application. It is essential to achieve the design thermal conductance (within an acceptable variance) after a thermal detector has been fabricated. Otherwise, the detector will fail to achieve its desired functionality. In addition, the formation of a multi-pixel imaging array becomes difficult and costly when the design thermal conductance is not achieved with high post-fabrication yield.

Posted in: Briefs, TSP, Sensors

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Graphene Supports NASA-Developed Nanosensors

NASA Technologist Mahmooda Sultana has been leading the development of tiny graphene sensors. Because of the material’s extreme sensitivity, graphene-based sensors have a wide range of possible space applications, including the detection of strain in composite materials and the discovery of trace gases in planetary bodies.

Posted in: Articles, Sensors

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Energy Harvesting and the IoT: A New Bull Market

Combining industrial-grade rechargeable lithium batteries with energy harvesting technology delivers reliable power for remote wireless sensors connected to the Industrial Internet of Things (IIoT). The romantic notion of grizzled ranchers out riding the range on horseback to shepherd their herd of cattle may soon be a distant memory, as cloud-based sensor technology now permits real-time animal tracking from the comfort of home or office, or by smartphone.

Posted in: Articles, Sensors

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When Sensors Mesh: How Sensor Networks Improve Performance

Innovations in communications and computing hardware and software have made it easier than ever to collect minute details regarding just about any topic of interest. For technology and manufacturing interests, small, low-powered sensors can be embedded in almost any machine for data collection. Thanks to wireless technology, these embedded devices can continuously and unobtrusively provide measurements of performance and environmental data. Analysis of this data offers vast opportunities for fine-tuning performance and process.

Posted in: Articles, Sensors

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Researchers Prepare RoboSimian for Tasks Beyond Disaster Response

RoboSimian, a limbed robot developed at NASA’s Jet Propulsion Laboratory (JPL), is designed to operate in environments too dangerous or difficult for human intervention, such as disaster areas and oil leak sites. After years of engineering in the lab, JPL’s researchers are preparing the tele-operated RoboSimian platform for use in new, complex environments, from deep waters to outer space.

Posted in: Application Briefs, Sensors

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Integrated Circuits

The Standard Power Series from Honeywell (Fort Mill, SC) includes four new sensor ICs. The integrated circuits offer a sensitivity of 11 Gauss max., allowing design engineers to use larger air gaps between the sensor IC and the magnet. The Standard Power Series Sensor ICs also feature a solid-state, non-contact, no-glass design. The devices have a supply voltage range of 3 Vdc-24 Vdc and operating temperature range of -40 to 185 °F. Potential applications include flow sensing in HVAC, anti-tamper detection in utility meters, and RPM sensing in exercise equipment and door position detection. For Free Info Visit http://info.hotims.com/61058-140

Posted in: Products, Sensors

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Wireless Remote Sensing

SignalFire Wireless Telemetry (Hudson, MA) has added capabilities to its Field Setup and Diagnostic ToolKit. Interfacing with sensors, thermocouples, load cells, pots, and turbine meters, the Signal Fire Wireless Remote Sensing Systems (SFRSS) support long-distance wireless communications across devices in large-scale environments such as oil fields.

Posted in: Products, Sensors

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