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    • 1. 发明公开
    • ACCELEROMETRIC SENSOR IN MEMS TECHNOLOGY HAVING HIGH ACCURACY AND LOW SENSITIVITY TO TEMPERATURE AND AGEING
    • 微机电系统高精度,低灵敏度温度和时效的加速度传感器
    • EP3226008A1
    • 2017-10-04
    • EP17162576.7
    • 2017-03-23
    • STMicroelectronics S.r.l.
    • TOCCHIO, AlessandroRIZZINI, FrancescoVALZASINA, CarloLANGFELDER, Giacomo
    • G01P15/125
    • G01P1/006G01P15/125G01P2015/0817G01P2015/0834
    • The accelerometric sensor has a suspended region (21), mobile with respect to a supporting structure (24), and a sensing assembly (37) coupled to the suspended region and configured to detect a movement of the suspended region with respect to the supporting structure. The suspended region (21) has a geometry variable between at least two configurations associated with respective centroids, different from each other. The suspended region (21) is formed by a first region (22) rotatably anchored to the supporting structure (24) and by a second region (23) coupled to the first region (22) through elastic connection elements (25) configured to allow a relative movement of the second region (23) with respect to the first region (22). A driving assembly (40) is coupled to the second region (23) so as to control the relative movement of the latter with respect to the first region.
    • 加速度传感器具有相对于支撑结构(24)可移动的悬置区域(21)以及耦合到悬置区域且被配置为检测悬置区域相对于支撑结构的移动的感测组件(37) 。 悬挂区域(21)在与相互不同的各个质心相关联的至少两个配置之间具有几何变量。 悬挂区域(21)由可旋转地锚定到支撑结构(24)的第一区域(22)和通过弹性连接元件(25)连接到第一区域(22)的第二区域(23)形成,所述弹性连接元件 第二区域(23)相对于第一区域(22)的相对运动。 驱动组件(40)联接到第二区域(23),以便控制后者相对于第一区域的相对运动。
    • 5. 发明公开
    • Method and device for detecting anomalous events for an electronic apparatus, in particular a portable apparatus
    • 用于检测异常事件用于电气设备,特别是用于便携式装置的方法和设备
    • EP2083276A1
    • 2009-07-29
    • EP08425029.9
    • 2008-01-22
    • STMicroelectronics S.r.l.
    • Pasolini, FabioRessia, Alberto
    • G01P15/08G01P15/18G11B19/04G11B21/12
    • G01P15/18G01P1/006G01P15/00G01P15/0891G11B19/042G11B19/043
    • Described herein is a method for detecting an anomalous event, like a crash or a free fall, in an electronic apparatus (1) , which envisages the steps of: detecting at least one acceleration signal (Acc) indicative of an acceleration acting on the electronic apparatus (1); and detecting the anomalous event as a function of the acceleration signal (Acc). The step of detecting the anomalous event envisages the steps of: monitoring a normal-mode condition of the electronic apparatus (1); and detecting the anomalous event at least based on the exit of the electronic apparatus (1) from the normal-mode condition. In particular, the step of monitoring a normal-mode condition envisages the steps of: determining a change or variation of acceleration (ΔAcc) associated to the acceleration signal (Acc) ; executing a comparison between the variation of acceleration (ΔAcc) and an acceleration threshold (THA); and determining the permanence in, or exit from, the normal-mode condition according to the result of the comparison. Also described is a detection device (6) implementing the above method.
    • 描述中是用于检测异常事件,如碰撞或在电子设备(1)自由下落其中设想以下步骤的方法:在电子检测至少一个加速度信号(ACC)表示的加速度作用的 装置(1); 检测和异常事件作为加速度信号(ACC)的函数。 检测异常事件的步骤设想如下步骤:监视所述电子设备(1)的正常模式条件; 检测和异常事件至少基于从正常模式状态的电子设备(1)的出口处。 特别地,监视正常模式的条件的步骤设想如下步骤:关联到加速度信号(ACC)确定性采矿的变化或加速度的变化(“ACC); 执行加速度的变化(“ACC)和加速度阈值(THA)之间的比较; 和确定性采矿的持久中,或从出口,正常模式条件gemäß该比较的结果。 如此描述是实现上述方法的检测装置(6)。
    • 6. 发明公开
    • Micro-electromechanical structure, in particular accelerometer, with improved insensitivity to thermomechanical stresses
    • 一种微机电结构,特别是加速度传感器,具有改进的不敏感性热和机械应力
    • EP1626283A1
    • 2006-02-15
    • EP04425630.3
    • 2004-08-13
    • STMicroelectronics S.r.l.
    • Merassi, AngeloMurari, BrunoZerbini, Sarah
    • G01P15/125G01P15/00B81B3/00
    • G01P15/125B81B7/0048B81B2201/0235G01P1/006G01P2015/082
    • In a micro-electromechanical structure, in particular an accelerometer (1;30;60), a movable mass or rotor (4;34;61) has a centroidal axis (G;G') and includes a suspended structure (8;38;62) which carries mobile electrodes (10;40). A stator (5;35;77) carries fixed electrodes (12;42) facing the mobile electrodes. The suspended structure (4;34;61) is connected to a rotor-anchoring region (16;44) via elastic elements (15;45;65). The stator includes at least one stator element (20;55;67),which carries a plurality of fixed electrodes (12;42) and is fixed to a stator-anchoring region (21;54). One of the rotor-anchoring regions and stator-anchoring regions extends along the centroidal axis (G;G') which is an axis perpendicular to the plane of the structure, through its centre of gravity, and at least another of the rotor-anchoring regions and stator-anchoring regions extends in the proximity of the centroidal axis (G;G'). Due to the small distance of all anchoring regions to each other, and to the centre of gravity, stresses due to thermal mismatches can be reduced.
    • 在一个微机电结构,特别是加速计(1; 30; 60),可移动质量体或转子(4; 34; 61)具有一个形心轴(G; G“),并包括一个悬挂结构(8; 38 ; 62)承载可移动电极(10; 40)。 定子(5; 35; 77)承载固定电极(12; 42)面对所述可移动电极。 将悬浮的结构(4; 34; 61)被连接到转子 - 锚定区域(16; 44)通过弹性元件(15; 45; 65)。 所述定子包括至少一个定子元件(20; 55; 67),其承载固定电极的多个(12; 42),并固定到定子锚定区域(21; 54)。 一个转子锚定区域和定子锚定区域的沿重心轴线延伸(G; G“),所有这些是在轴垂直于该结构的平面中,通过其重心,和至少另一个所述转子 - 锚定的 区域和定子锚定区域在重心轴线(; G“G)的附近延伸。 由于所有锚定区域的小的距离海誓山盟,和重力作用,应力的中心由于热失配可以被减小。
    • 10. 发明公开
    • Charge-type sensor amplifying circuit
    • VerstärkerschaltungfürLadungssensor
    • EP1150125A1
    • 2001-10-31
    • EP01109926.4
    • 2001-04-24
    • Murata Manufacturing Co., Ltd.
    • Yamashita, Muneharu, Murata Manufacturing Co. Ltd.
    • G01P15/09G01P1/00G01D3/036G01J1/34
    • H03F1/34G01D5/24G01J5/34G01P1/006G01P15/09H03F3/45475H03F3/70H03F2203/45526
    • A charge-type sensor amplifying circuit includes an operational amplifier (Amp) having an inverting input terminal thereof connected to one terminal of a charge-type sensor (G sensor), a voltage divider (Rx, R2, R3) having two voltage-dividing points which divide the output voltage from the operational amplifier (Amp), a feedback resistor (R1) connected between the inverting input terminal of the operational amplifier (Amp) and one voltage-dividing point of the voltage divider (Rx, R2, R3) which is on the output terminal side of the operational amplifier (Amp), and a feedback capacitor (C1) connected in parallel with the feedback resistor (R1). In the charge-type sensor (G sensor) amplifying circuit, the other terminal of the charge-type sensor (G sensor) is connected to the other voltage-dividing point of the voltage divider (Rx, R2, R3) which is not on the output terminal side of the operational amplifier (Amp).
    • 电荷型传感器放大电路包括:运算放大器(Amp),其运算放大器(Amp),其反相输入端连接到充电型传感器(G传感器)的一个端子;分压器(Rx,R2,R3),具有两个分压 将运算放大器(Amp)的输出电压分开的点,连接在运算放大器(Amp)的反相输入端子和分压器(Rx,R2,R3)的一个分压点之间的反馈电阻器(R1) 它位于运算放大器(Amp)的输出端侧,反馈电容(C1)与反馈电阻(R1)并联连接。 在充电式传感器(G传感器)放大电路中,充电型传感器(G传感器)的另一端连接到不在分压器(Rx,R2,R3)的另一分压点 运算放大器的输出端侧(Amp)。