A Sweat Sensor Built to Last
Today’s wearable health monitors are packed with everything from accelerometers and gyroscopes to photoplethysmography and electrophysiological sensors to capture all sorts of health-related metrics. Sweat sensing is an emerging area in the field, yet it has not caught on to the same extent that other technologies have. Despite the fact that sweat contains valuable information about athletic performance and conditions like diabetes, these sensors are not always practical.
The biggest problem is that after a relatively short period of use, once molecules bind to them, sweat sensors need to be replaced. In addition to that, users may need to work up a sweat through physical exertion before the device can collect a sample for analysis. Neither of these requirements is conducive to continuous monitoring; worse yet, these factors are a nuisance.
An overview of the hardware design (📷: UC Irvine)
But now, a better sensing option is on the horizon....
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