低成本微加工傳感器為Gyroscopes打開了機(jī)會(huì)

　　低成本，大規(guī)模生產(chǎn)陀螺儀傳感器和各種微機(jī)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(dǎo)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(jī)械陀螺的方法。

　　陀螺儀正在成為電子系統(tǒng)設(shè)計(jì)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(dǎo)航系統(tǒng)開始，這項(xiàng)技術(shù)正在進(jìn)入許多不同的領(lǐng)域。制造工藝的改進(jìn)和材料和設(shè)計(jì)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(hù)設(shè)備的新途徑。

　　其他應(yīng)用程序，如圖像穩(wěn)定，遠(yuǎn)程信息處理，和電子收費(fèi)是利用低成本的陀螺儀，但技術(shù)也在進(jìn)入如人機(jī)界面（MMI）運(yùn)動(dòng)控制的主流應(yīng)用和家電和機(jī)器人。支持測(cè)量三個(gè)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(jì)，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(dòng)。來自陀螺儀的3D數(shù)據(jù)可以通過軟件轉(zhuǎn)換成更復(fù)雜的界面控制，以增強(qiáng)用戶體驗(yàn)。

　　該技術(shù)甚至擴(kuò)展到對(duì)保證日志記錄的沖擊檢測(cè)和跌落保護(hù)，提供關(guān)于設(shè)備發(fā)生的更詳細(xì)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.