Electrical/Electronics

Wireless Electrical Device Using Open-Circuit Elements Having No Electrical Connections

This technology produces sensors for axial load force, linear displacement, rotation, strain, pressure, torque, and motion sensing.

NASA Langley Research Center has developed a wireless, connection-free, open-circuit technology that can be used for developing electrical devices such as sensors that need no physical contact with the properties being measured. At the core of the technology is the SansEC (Sans Electrical Connections) circuit, which is damage-resilient and environmentally friendly to manufacture and use. The technology uses a NASA award-winning magnetic field response measurement acquisition device to provide power to the device and, in the case of a sensor application, to acquire physical property measurements from them. This fundamental new approach using open circuits enables applications such as sensors for axial load force, linear displacement, rotation, strain, pressure, torque, and motion sensing, as well as unique designs such as for a wireless keypad or wireless rotational dial, or for energy storage.

Posted in: Briefs, Electronics & Computers, Architecture, Integrated circuits, Sensors and actuators, Wireless communication systems, Architecture, Integrated circuits, Sensors and actuators, Wireless communication systems, Electric power, Magnetic materials
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ISO 26262 & Automotive Electronics Development

Compliance standards, especially those that involve relatively new functional safety elements, will likely add additional requirements to the development process. But ISO 26262, in particular, will add more than new requirements to the product life cycle for automotive hardware-software systems. This Functional Safety standard will act as a framework impacting integrated requirements traceability, risk management, validation, verification, documentation and collaboration throughout the systems engineering “V” model life cycle process (see Figure). ISO 26262 will also require the qualification of tools used to create automotive systems. This paper examines the impact of the standard on the development process and support tool chains for automotive electronics.

Posted in: Briefs, TSP, Electronics & Computers, Information Sciences, Semiconductors & ICs, Software, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware, Life cycle analysis, Safety regulations and standards
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The Reality of Application Security: Scare Tactics or Genuine Threat?

Guardians of application security have perhaps become slightly immune to the fearful messages of cybersecurity vendors. The combination of ‘Big Data’ with an exponentially growing Internet of Things (IoT) would seem to provide the perfect storm conditions for the exploitation of vulnerable code streams. Read this whitepaper about the reality of AppSec to discover what are the real risks and how to mitigate them.

Posted in: White Papers, Automotive, Communications, Electronics & Computers, Information Sciences
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PTC Heater Brings Greater Control for Hand-held Medical Devices and Disposables

Point of Care diagnostics devices, whether handheld or single-use, often require a brief application of tightly controlled heat. The disposable nature of these devices requires a low-cost component capable of delivering that heat reliably and safely. Heatron's new PTC heater solution uses a polymer-based heater technology that controls heat to within ±2°C of the target temperature, and reduces unit cost by eliminating sensors and applied controls.

Posted in: White Papers, Briefs, TSP, Electronics & Computers, Thermoelectrics, Medical, Medical equipment and supplies, Heating, ventilation, and air conditioning systems (HVAC), Heating, ventilation, and air conditioning systems (HVAC), Polymers
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Introduction to Electromagnetic Compatibility

By definition, Electromagnetic Compatibility (EMC) describes the ability of a system, a piece of equipment, or some other electrical device that utilizes electromagnetic energy, to operate in its intended environment without suffering an unacceptable degradation in its performance, or negatively impacting the ability of another device to perform its intended function.

Posted in: White Papers, White Papers, Aeronautics, Defense, Electronics & Computers
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Control System Basics with Jon Titus

Writer and editor Jon Titus (often credited as the inventor of the first personal computer) explores the basic elements on a control system. Beginning with relays followed by sink versus source control, Titus also explores PNP and NPN logic, open collectors and isolation. With a personable Q&A format, this five-part guide demystifies some of the common questions and confusions surrounding control systems.

Posted in: White Papers, Electronics & Computers
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Product of the Month: March 2017

Watlow, St. Louis, MO, introduced the D4T with INTUITION® data logger with a range of field-removable I/O modules. The data logger features a 4.3” color graphical touch panel with a high-resolution graphical user interface that allows channels, alarms, inputs, and outputs to be customized with user-defined names. The unit is programmable to show information in multiple languages, and enables users to choose encrypted, .CSV, or both types of file formats for tamperproof record needs. Users can select which parameters to log, from one to 128 points simultaneously, and where to store files — inside the controller, on a connected USB memory device, or to a connected PC anywhere in the world. The system records as fast as one time per 0.1 second, or as slow as one time per hour. The system is available with 1 to 24 channels, and is compatible with temperature, altitude, humidity, AC current, and other 0-10VDC or 0-20 mA process units. It connects with a controller via Ethernet, and offers communications options including Ethernet Modbus® TCP and SCPI, and EIA-232/485 Modbus® RTU.

Posted in: Products, Electronics & Computers
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MRAM Alternative Uses Less Energy than Conventional Chip

Purely electrical memory chips commonly used today are volatile and their state must be continuously refreshed, which requires a lot of energy. An alternative to these electrical memory chips is magnetic random access memory (MRAM), which saves data magnetically and does not require constant refreshing. They do, however, require relatively large electrical currents to write the data to memory, which reduces reliability.

Posted in: Briefs, Electronics & Computers, Computer software / hardware, Computer software and hardware, Integrated circuits, Computer software / hardware, Computer software and hardware, Integrated circuits, Energy consumption
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Reconfigurable Chaos-Based Microchips

Researchers at North Carolina State University have developed nonlinear chaos-based integrated circuits that enable computer chips to perform multiple functions with fewer transistors. These integrated circuits can be manufactured with off-the-shelf fabrication processes, and could lead to novel computer architectures that do more with less circuitry and fewer transistors.

Posted in: Briefs, Electronics & Computers, Architecture, Integrated circuits, Transistors, Architecture, Integrated circuits, Transistors, Fabrication
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Supercomputer Cooling System Uses Refrigerant to Replace Water

Sandia National Laboratories researchers designed a cooling system for supercomputer centers that is expected to save four to five million gallons of water annually in New Mexico if installed at Sandia's computing center, and hundreds of millions of gallons nationally if the method is widely adopted. It is being tested at the National Renewable Energy Laboratory (NREL), which expects to save a million gallons annually. The system, built by Johnson Controls and called the Thermosyphon Cooler Hybrid System, cools like a refrigerator without the expense and energy needs of a compressor.

Posted in: Briefs, Electronics & Computers, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware, Product development, Cooling, Refrigerants
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