Thermal Management

Unmanned Ocean Drone

Liquid Robotics Sunnyvale, CA 408-636-4200 www.liquidr.com Accurately forecasting weather conditions and currents prior to mission deployment is an invaluable intelligence tool for the warfighter. Being able to accurately predict a Category-5 typhoon or hurricane, instead of a tropical storm, also saves lives, saves property, and saves time in evacuations. The Liquid Robotics' Wave Glider®, a surfboard-sized ocean drone filled with sensors, computers, and communications equipment, can survive a Category-5 typhoon while continuously collecting and transmitting meteorological and oceanographic data. Previously this type of data was unobtainable because it was too risky to send manned ships out in the middle of a hurricane/typhoon; buoys can become severely damaged or come off their moorings in such conditions; and satellites have difficulty seeing through the dense cloud cover.

Posted in: Application Briefs, DTB, Aerospace, Communications, Defense, Thermal Management, Data Acquisition

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A Graphene-Metal Sandwich Could Improve Electronics

Researchers have discovered that creating a graphene-copper-graphene “sandwich” enhances copper’s heat conducting properties, which could help in shrinking electronics. Engineers at the University of California, Riverside, and the University of Manchester, UK, in collaboration, found that adding a layer of graphene, a one-atom thick material on each side of a copper film increased heat conducting properties by up to 24 percent.

Posted in: MDB, News, Electronic Components, Electronics, Thermal Management, Coatings & Adhesives, Materials, Metals, Medical

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MELF Resistor Series

Stackpole Electronics Inc., Raleigh, NC, announces that its surface mount metal film MELFs, the MLF and MLFM Series offers cooler operating temperatures at full rated power. The cylindrical shape provides a termination that is far more thermally efficient than comparable size flat chip resistors. They are ideally suited for medical instrumentation, monitoring, and test equipment.

Posted in: MDB, Products, Board-Level Electronics, Electronic Components, Electronics, Thermal Management, Manufacturing & Prototyping, Medical

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Transistor for High-Performance Devices at Low Voltage

A team of scientists at Penn State, University Park, PA, say that a new type of transistor could make fast, low-power computing devices possible for energy-constrained applications such as implantable medical electronics, smart sensor networks, and ultra-mobile computing. Called a near broken-gap tunnel field effect transistor (TFET), the new device uses the quantum mechanical tunneling of electrons through an ultrathin energy barrier to provide high current at low voltage.

Posted in: MDB, News, Electronic Components, Electronics, Power Management, Power Supplies, Thermal Management, Implants & Prosthetics, Medical, Patient Monitoring

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How to Optimize Carbon Nanotube Arrays

When designing devices, engineers often must join together materials that expand and contract at different rates as temperatures change. Such thermal differences can cause problems if, for instance, a semiconductor chip is plugged into a socket that can’t expand and contract rapidly enough to maintain an unbroken contact over time.

Posted in: MDB, News, Thermal Management, Nanotechnology

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Thermally Optimized Medical Devices Improve Patient Outcomes

Today’s medical device and equipment designs are highly influenced by continuous technological advances that affect their size, power consumption, and communication capabilities. But patient safety and comfort are also critical considerations, forcing designers to balance the demands of new technology with the demands of new forms of patient care. From addressing industry-wide concerns over bioburden to adhering to strict noise limitations and biocompatibility needs, the list of requirements is becoming increasingly long. In order to provide the best possible solutions, medical device designers need a working knowledge of the thermal management technologies available to them. Armed with a thorough understanding of both passive and active thermal management systems, including their components, benefits, and applications, designers can more effectively address all the needs of the medical industry.

Posted in: Features, MDB, Electronic Components, Electronics, Thermal Management, Medical

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Circuit Protection Critical to Safeguarding Both Medical Devices and Patients’ Health

Agrowing array of electronic devices are available to healthcare providers, patients, and their families, including glucose meters, blood pressure monitors, automated external defibrillators (AEDs), and many others. To ensure safe, reliable performance of these devices, their designers must factor in circuit protection requirements from the earliest stages of the circuit design process. For example, a seemingly minor electrostatic discharge could easily render a portable medical device useless if it’s not properly protected, exposing the patient to the danger of misleading (or no) readings and the device’s manufacturer to legal liability if inaccurate results lead to improper treatment.

Posted in: Features, MDB, Custom & Contract Manufacturing, Board-Level Electronics, Electronic Components, Electronics, Power Management, Thermal Management, Medical

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