A smart neckband allows wearers to monitor their dietary intake. Automatically monitoring food and fluid intake can be useful when managing conditions including diabetes and obesity, or when maximizing fitness. But wearable ...
May 8, 2024
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A sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument. For example, a mercury thermometer converts the measured temperature into expansion and contraction of a liquid which can be read on a calibrated glass tube. A thermocouple converts temperature to an output voltage which can be read by a voltmeter. For accuracy, all sensors need to be calibrated against known standards.
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