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Accelerometers becoming mainstream, driven by iPhone

updated 06:55 pm EDT, Thu July 9, 2009

Accelerometers mainstream

Over one-third of mobile phones are expected to integrate accelerometers by 2010, according to the research firm iSuppli. Widespread adoption of the Microelectromechanical Systems (MEMS) sensors is being driven by popular devices such as Apple's iPhone and the recently-launched Palm Pre. Although the trend continues to develop in the smartphone segment, the technology is also being used in simpler devices.

The iPhone is one of the first devices to utilize an accelerometer for a wide range of functions and input. The 3-axis motion sensor enables the device to switch screen orientation, or move through tracks as it is shaken. Many of the third-party games use motion input for control, instead of a dedicated joystick or input buttons.

Sony Ericsson shows one of the highest rates of accelerometer integration, with 18 out of 19 new phones using the technology. Companies following a similar path include Samsung and LG, among others.

Motion sensors represent a fraction of the new MEMS components utilized in mobile devices. Apple included a magnetometer in the iPhone 3GS, effectively allowing the handset to detect a heading without relying on point-to-point vectors. The electronic compass functionality works to orient a map before the user even starts moving.

Aside from basic control and orientation input, the accelerometer is likely to be used in a variety of new ways in the near future. Apple has applied for patents relating to technology for sports such as martial arts or skiing. Sensors could track the placement and impact force of strikes during a martial arts match, either for training purposes or scoring. Skiers could use the system to record jump heights, rotations, air time and other factors.

Other Apple patent applications detail systems for tracking biometric data such as heart rate or body temperature. The company has submitted filings for technology involving pico-projectors in mobile devices, potentially the iPhone or iPod touch. Advanced sensors might also be used to detect a gaze and wake a device only when the user focuses on it.

Along with the continued adoption of accelerometers, iSuppli predicts the industry for MEMS components will grow from $460 million last year to over $1.6 billion in 2013. The company also expects technology such as gyroscopes and projectors to hit the market as early as 2010.

by MacNN Staff



  1. starwarrior

    Joined: Dec 1969


    Old and New Stuff

    Almost item for item these technologies were developed to miniaturize the components which enabled the use of miniature kill vehicles for missile defense. In 1992 the weapons were reduced in size from 1000 Kg to 10 Kg with high tracking accuracies. If one would plug the iPhone onto a simple propulsion system the kill vehicles for missile defense would cost $100 instead of $10,000,000 and weigh 1 Kg instead of 10 Kg. Maybe the Defense Fanboys should take a look at the Apple Fanboys extrapolation of their technologies. But of course, there would be no money in it.

  1. snapper02

    Joined: Dec 1969


    Cameras please

    I would like to see Canon integrate it in their D series cameras so that we can tell when the camera is level, it's would be so easy for them to do it. Maybe take it a step further by adding the 3 axis data to the exif file so tilt shift corrections would be automatic in post production.There I said it now somebody go patent it.

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