59/5000 HIM electronic barometer for determining the air pressure

Microelectromechanical systems (or MEMS) barometers are extremely small devices between 1 and 100 micrometres in size (i.e. 0.001 to 0.1 mm). They are created via photolithography or photochemical machining. Typical applications include miniaturized weather stations, electronic barometers and altimeters.[17]

A barometer can also be found in smartphones such as the Samsung Galaxy Nexus,[18] Samsung Galaxy S3-S6, Motorola Xoom, Apple iPhone 6 smartphones, and Timex Expedition WS4 smartwatch, based on MEMS and piezoresistive pressure-sensing technologies.[19][20] Inclusion of barometers on smartphones was originally intended to provide a faster GPS lock.[21] However, third party researchers were unable to confirm additional GPS accuracy or lock speed due to barometric readings. The researchers suggest that the inclusion of barometers in smartphones may provide a solution to determining a user's elevation, but also suggest that several pitfalls must first be overcome.[22]

Microelectromechanical systems (or MEMS) barometers are extremely small devices between 1 and 100 micrometres in size (i.e. 0.001 to 0.1 mm). They are created via photolithography or... read more »
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59/5000 HIM electronic barometer for determining the air pressure

Microelectromechanical systems (or MEMS) barometers are extremely small devices between 1 and 100 micrometres in size (i.e. 0.001 to 0.1 mm). They are created via photolithography or photochemical machining. Typical applications include miniaturized weather stations, electronic barometers and altimeters.[17]

A barometer can also be found in smartphones such as the Samsung Galaxy Nexus,[18] Samsung Galaxy S3-S6, Motorola Xoom, Apple iPhone 6 smartphones, and Timex Expedition WS4 smartwatch, based on MEMS and piezoresistive pressure-sensing technologies.[19][20] Inclusion of barometers on smartphones was originally intended to provide a faster GPS lock.[21] However, third party researchers were unable to confirm additional GPS accuracy or lock speed due to barometric readings. The researchers suggest that the inclusion of barometers in smartphones may provide a solution to determining a user's elevation, but also suggest that several pitfalls must first be overcome.[22]

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