The accelerometer and compass are OK — as they are on iPod touch — but 3g makes a big difference when also orienting location.

加速计和指南针尚可——就像他们在ipod touch一样——但3g是的定向定位的时候有巨大不同。

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The phone's internal compass and accelerometer also come into play to help determine its location.

手机内置的罗盘和加速度计亦能帮助手机定位。

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Light sensor, accelerometer, compass (magnetometer) and gyroscope.

光线感应，加速感应，内置罗盘及陀螺仪。

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Whereas the original prototype had a thin, flimsy shell, the Virta 2's gone downright rugged, ditching the iPhone chrome for a more durable gunmetal frame, and there's a full compliment of sensors (compass, accelerometer, ambient light and proximity) alongside quad-band radios, WiFi, Bluetooth and a pair of cameras for your video chat testing needs.

ENGADGET: Aava Mobile reveals Virta 2 smartphone development kit, we go hands-on

In their glove, a total of 15 flex sensors in the fingers measure the degree of bending while a compass, accelerometer, and gyroscope determine the motion of the glove through space.

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Examples include the FSM-SENS-1, a 6-axis sensor-only module that integrates with an external Freespace MotionEngine, and the FSM-SI-2, which combines the Freespace MotionEngine on an embedded microprocessor along with a 3-axis digital gyroscope, 3-axis digital accelerometer and optional 3-axis magnetometer (compass) to provide high-performance, calibrated motion data for a variety of applications.

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