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Sensor packs compass, angular velocity detection

Posted: 24 Dec 2009 ?? ?Print Version ?Bookmark and Share

Keywords:geomagnetic sensor? motion application? detection velocity?

HSCD sensor

Alps Electric Europe has introduced the HSCD series three-axis geomagnetic sensor that integrates angular velocity detection for compact motion applications.

Thanks to its ability to detect geomagnetism in three axes, the HSCD series is a geomagnetic sensor equipped with not only an electronic compass function, but also an angular velocity detection function.

In electronic compass mode, stable directional detection accuracy is achieved by using magnetic elements within the proprietary structure created by the manufacturer.

More and more entertainment applications require the detection of angular velocity, which measures the angle of motion and operating speed.

By processing data detected on three-directional geomagnetic axes using proprietary software, the HSCD series achieves an angular velocity detection function through triangulation, namely a gyro function.

Combining these angular velocity detection and electronic compass functions in a single package reduces the size of the mounting area, as fewer components need to be installed, and lowers power consumption.

It is envisaged that the HSCD series will be installed in a variety of compact devices, and thus resistance to external interference has been improved by building proprietary shield structure into its sensor element that minimizes the effects of the magnetic fields created by other components on mounted on board.

The device measures 2.5mm x 2.5mm x 0.7mm, is has a magnetic field measurement range of 0.6mT and an output resolution of 0.5?T/LSB in a an operating temperature range of -20C to +85C. The part operates from a 2.5V analog supply voltage, or a 1.8V digital supply voltage. Average current consumption in active mode is a maximum of 200?A

- Julien Happich
EE Times Europe

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