Researchers at the Georgia Institute of Technology have developed a new type of magnetically-actuated microrelay they say can be batch-produced using established micromachining techniques. The developer predicts that the devices could have applications in automotive electronics, test equipment, and other areas where low actuation voltages are needed. The devices, smaller than a dime, operate at less than 5V, which would allow them to be driven by digital logic circuits, making them attractive for use in equipment for which higher voltages could be undesirable. The patent-pending devices' contact resistance of less than 100 milliohms and their ability to switch currents of up to 1.2A set a new record for microrelays, says William P. Taylor, their developer. He adds that the devices offer cost advantages over traditional relays, "because they can be produced in groups of a hundred or more at a time." The Georgia Tech microrelays have been tested through more than 850,000 operating cycles without failure. E-mail firstname.lastname@example.org.
The company says it anticipates high-definition video for home security and other uses will be the next mature technology integrated into the IoT domain, hence the introduction of its MatrixCam devkit.
Siemens and Georgia Institute of Technology are partnering to address limitations in the current additive manufacturing design-to-production chain in an applied research project as part of the federally backed America Makes program.
Independent science safety company Underwriters Laboratories is providing new guidance for manufacturers about how to follow the latest IEC standards for implementing safety features in programmable logic controllers.
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