Monday, July 3, 2017

Sensor Technology News: Researchers create temperature sensor that runs on almost no power by Mallory Locklear

ElectronicKitSchool. - This is one information update from sensor technology news 2017 in this time with the article titled Researchers create temperature sensor that runs on almost no power that written by Mallory Locklear and published in Engadget site.

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Researchers at UC San Diego have developed a temperature sensor that runs on tiny amounts of power -- just 113 picowatts, around 10 billion times less power than a watt. The sensor was described in a study recently published in Scientific Reports. "We're building systems that have such low power requirements that they could potentially run for years on just a tiny battery," Hui Wang, an author of the study, said in a statement.

The team created the device by reducing power in two areas. The first was the current source. To do that, they made use of a phenomenon that many researchers in their field are actually trying to get rid of. Transistors often have a gate with which they can stop the flow of electrons in a circuit, but transistors keep getting tinier and tinier. The smaller they get, the thinner the gate material becomes and electrons start to leak through it -- a problem called "gate leakage." Here, the leaked electrons are what's powering the sensor. "Many researchers are trying to get rid of leakage current, but we are exploiting it to build an ultra-low power current source," said Hui.

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