Apple Watch is now equipped with multiple sensors to track the user’s various activities and sports performance,MacRumors Citing an Apple recruitment advertisement, it is speculated that they may be researching adding a tension sensor to further improve the Watch’s ability to track strength training.
Apple is said to be looking for engineers with “experience working with analog circuits, particularly electromechanical systems utilizing actuators, temperature sensors, strain gauges, and photodiodes.” The job description includes helping design, build, test, and troubleshoot health product prototypes Chances are there are problems. Actuators, temperature sensors, and photodiodes have all appeared in the current Apple Watch. What will arouse people’s interest is the newly added strain gauges, which are commonly used in testing tension values.
Switching to actual exercise, Apple may hope that in addition to the common data such as calories and heart rate that already exist today, the Watch can track muscle load data for strength training and provide more accurate fitness performance analysis, rather than relying solely on heart rate today to estimate. On the other hand, some scientists have successfully used strain gauges for non-invasive blood pressure measurement, so this is also a potential use.
