低成本微加工傳感器為Gyroscopes打開了機會

　　低成本，大規(guī)模生產(chǎn)陀螺儀傳感器和各種微機械加工技術(shù)正在開辟一系列新的應(yīng)用。從模擬設(shè)備，意法半導體器件，與博世傳感器表現(xiàn)出不同的技術(shù)，在各種應(yīng)用中使用微機械陀螺的方法。

　　陀螺儀正在成為電子系統(tǒng)設(shè)計中越來越重要的部分。從最初大量應(yīng)用汽車安全氣囊和導航系統(tǒng)開始，這項技術(shù)正在進入許多不同的領(lǐng)域。制造工藝的改進和材料和設(shè)計的創(chuàng)新正在提供更小、更低功率的設(shè)備，從而開辟了使用和保護設(shè)備的新途徑。

　　其他應(yīng)用程序，如圖像穩(wěn)定，遠程信息處理，和電子收費是利用低成本的陀螺儀，但技術(shù)也在進入如人機界面（MMI）運動控制的主流應(yīng)用和家電和機器人。支持測量三個維度的額外成本已經(jīng)低到足以使陀螺儀的應(yīng)用，以前只使用一或二維加速度計，如開關(guān)顯示器的配置文件從縱向到橫向，游戲控制器甚至菜單滾動。來自陀螺儀的3D數(shù)據(jù)可以通過軟件轉(zhuǎn)換成更復雜的界面控制，以增強用戶體驗。

　　該技術(shù)甚至擴展到對保證日志記錄的沖擊檢測和跌落保護，提供關(guān)于設(shè)備發(fā)生的更詳細的信息。

　　The integration of more processing around the micro-machined sensor is also allowing more control of the power consumption. Using separate signal chains for the different axes of movement provides finer control of the power consumption and so supports advanced power management for mobile devices. This enhanced power control also opens up applications in pedometers and step counting， which can be combined with other portable devices and Web applications such as mapping in more sophisticated applications.

　　STMicroelectronics is one of the leading suppliers of micro-machined accelerometers that combine a single mass with highly integrated processing and interface electronics. TheA3G4250D is a low-power 3-axis angular rate sensor that provides high levels of stability at the zero-rate level and sensitivity over temperature and time. It includes a sensing element and an SPI digital interface to deliver the measured angular rate to the external world. An I2C-compatible interface is also available.