Special Coverage

Technique Provides Security for Multi-Robot Systems
Bringing New Vision to Laser Material Processing Systems
NASA Tests Lasers’ Ability to Transmit Data from Space
Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing

MRI And Body Temperature

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Current Attractions

Each month, NTB highlights tech briefs related to a particular area of technology in a special section called Technology Focus. Here are some of the technologies featured in the October issue focus on Sensors.

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T-Ray Camera

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Powerhouse Cells

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Hydrogen Sensor

Researchers at the National Institute of Standards and Technology and Colorado School of Mines have developed a prototype sensor that quickly detects very small amounts of hydrogen accumulation in coated pipeline steel. Hydrogen can cause gradual embrittlement in conventional pipelines by slowly diffusing into the metal. The new sensor could provide early warning of pipes that have accumulated excessive amounts of hydrogen and avert potentially disastrous failures of pipelines carrying hydrogen fuel.

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Microwaving Mars and the Moon

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Healing Nanoparticles

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Chemical Weapon Detecting Compound

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Virtualizing Physical Measurements Using Wireless Sensor Technology

Benefits include the elimination of wired connections and having advanced signal processing capabilities within each sensor.

Virtualizing physical measurements using wireless sensor technology enables a host of new solution choices. Wireless sensors are smart devices that realize measurements without using external data acquisition (DAQ) equipment or external power sources. The hardware needed to directly digitize low-level signals resides within each sensor. The analog-to-digital converter (ADC) found in a highly integrated microcontroller is typically accompanied by a multiplexer (MUX) and programmable gain amplifier (PGA). Further inclusion of other mixed-signal peripherals such as comparators and digital-to-analog converters (DAC) promote the sensor as a complete measurement processing system.

Posted in: Briefs, Electronics & Computers, Measurements, Sensors and actuators, Sensors and actuators
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Control Architecture for Robotic Agent Command and Sensing

Plans and behaviors are updated in response to changing requirements and conditions.

Control Architecture for Robotic Agent Command and Sensing (CARACaS) is a recent product of a continuing effort to develop architectures for controlling either a single autonomous robotic vehicle or multiple cooperating but otherwise autonomous robotic vehicles. CARACaS is potentially applicable to diverse robotic systems that could include aircraft, spacecraft, ground vehicles, surface water vessels, and/or underwater vessels.

Posted in: Briefs, TSP, Information Sciences, Architecture, Architecture, Robotics, Autonomous vehicles, Marine vehicles and equipment, Spacecraft, Unmanned aerial vehicles
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