BESCHLEUNIGUNGSSENSOR
    11.
    发明授权

    公开(公告)号:EP0263855B1

    公开(公告)日:1990-08-22

    申请号:EP87902373.7

    申请日:1987-04-02

    申请人: ROBERT BOSCH GMBH

    发明人: HUBER, Werner

    IPC分类号: G01P1/00

    摘要: An accelerometer comprises essentially a leaf spring (12) having at its free extremety, as essential mass, an eddy current disk (13) and an eddy current brake with magnets (16, 17) of opposite polarity and a low retentivity iron conductance which dampers the vibration of the spring-mass system formed by the leaf spring (12) and the eddy current disk (13). The stroke of the inert mass is converted into an output voltage proportional to the acceleration by a sensor magnet (19) and a Hall element (20) as a means for travel detection. This accelerometer is built into a motor vehicle, for example, and used to release safety devices, such as safety belt tighteners, for example. It has the advantage of having a frequency response that is almost not temperature dependent, of being simple and compact.

    摘要翻译: 加速度计基本上包括一个板簧(12),该板簧具有作为基本质量的自由极限的涡流盘(13)和涡流制动器,该涡流盘具有相反极性和低保持力铁传导率的磁体(16,17),这些阻尼器 由板簧(12)和涡流盘(13)形成的弹簧质量系统的振动。 惰性质量的行程被传感器磁体(19)和霍尔元件(20)转换成与加速度成比例的输出电压,作为用于行程检测的装置。 例如,该加速度计内置于机动车辆中,并用于释放安全装置,例如安全带张紧器。 它的优点是具有几乎不受温度影响的频率响应,简单紧凑。

    PORTABLE ELECTRONIC DEVICE, CONTROL METHOD, AND CONTROL PROGRAM
    12.
    发明公开
    PORTABLE ELECTRONIC DEVICE, CONTROL METHOD, AND CONTROL PROGRAM 审中-公开
    便携式电子装置,控制方法和控制程序

    公开(公告)号:EP3188457A1

    公开(公告)日:2017-07-05

    申请号:EP15836826.6

    申请日:2015-08-13

    IPC分类号: H04M1/00 G01C21/26

    摘要: In one of aspects, a mobile electronic device that is configured to determine transportation thereof comprises at least one controller that is configured to, while a predetermined vibration is being detected, determine that the transportation is a train when a predetermined change in magnetic field strength is detected within a predetermined period of time. On the other hand, the at least one controller is configured to determine that the transportation is an automobile when the predetermined change in the magnetic field strength is not detected within the predetermined period of time. The at least one controller is further configured to determine that, when predetermined information regarding rotation of the mobile electronic device is detected, the transportation is an automobile even when the predetermined change in the magnetic field strength has been detected within the predetermined period of time.

    摘要翻译: 在一个方面中,配置成确定其运输的移动电子设备包括至少一个控制器,该至少一个控制器被配置成在检测到预定振动的同时确定在磁场强度的预定改变是 在预定的时间段内检测到。 另一方面,至少一个控制器被配置为当在预定时间段内没有检测到磁场强度的预定变化时,确定运输是汽车。 所述至少一个控制器进一步被配置为确定当检测到关于所述移动电子装置的旋转的预定信息时,即使当在所述预定时间段内已经检测到所述磁场强度的所述预定变化时,所述交通工具也是汽车。

    MAGNETIC TRANSDUCTION SENSOR DEVICE, MANUFACTURING PROCESS AND DETECTION PROCESS THEREFORM
    13.
    发明授权
    MAGNETIC TRANSDUCTION SENSOR DEVICE, MANUFACTURING PROCESS AND DETECTION PROCESS THEREFORM 有权
    MAGNET传导传感器元件,制造工艺和检测过程THEREOF

    公开(公告)号:EP1668331B1

    公开(公告)日:2011-01-12

    申请号:EP04769515.0

    申请日:2004-09-29

    IPC分类号: G01L1/00

    CPC分类号: B60C23/0408 G01P15/105

    摘要: Magnetic pressure sensor device, of the type comprising at least one magnetic layer (11) able to vary a magnetisation associated thereto in response to a pressure (P) exerted thereon. Said device (20; 30; 40; 50) comprises a plurality of layers (11, 12, 13, 14, 15, 16, 17) arranged in a stack, said magnetic layer (11) able to vary a magnetisation associated thereto in response to a pressure (P) comprising a free magnetic layer (11), able to be associated to a temporary magnetisation (MT), said free magnetic layer (11) belonging to said plurality of layers (11, 12, 13, 14, 15, 16, 17), which further comprises at least a spacer layer (13; 23; 33) and a permanent magnetic layer (12) associated to a permanent magnetisation (MP). Said sensor device (20) further comprises a compressible layer (21; 31; 42) and a layer with high magnetic coercivity (22; 32; 42) associated to said plurality of layers (11, 12, 13, 14, 15, 16, 17).

    Acceleration sensor and magnetic disk drive apparatus
    14.
    发明公开
    Acceleration sensor and magnetic disk drive apparatus 审中-公开
    加速度计和磁盘驱动器

    公开(公告)号:EP1659409A3

    公开(公告)日:2009-03-25

    申请号:EP05110434.7

    申请日:2005-11-07

    申请人: TDK Corporation

    发明人: SHOJI, Shigeru

    摘要: An acceleration sensor includes a housing member (20, 20), a spring member (21, 61, 71) attached to the housing member, the spring member having freedom in at least one direction of acceleration to be detected, a weight and magnetic field generation member (22, 62) fixed to the spring member, and at least one magnetic field detection sensor (23, 24, 63) attached to the housing member to face the weight and magnetic field generation member. The at least one magnetic field detection sensor (23a, 24a, 63a) is provided with at least one multi-layered MR element including a magnetization fixed layer and a magnetization free layer. A direction of magnetic field applied to the at least one multi-layered MR element from the weight and magnetic field generation member is perpendicular to a lamination plane of the at least one multi-layered MR element when no acceleration is applied.

    Ferrofluid sensor
    18.
    发明公开
    Ferrofluid sensor 失效
    磁流体传感器

    公开(公告)号:EP0857945A3

    公开(公告)日:2000-03-08

    申请号:EP98101263.6

    申请日:1998-01-26

    发明人: Raj, Kuldip

    摘要: A ferrofluid sensor assembly includes a permanent magnet which is supported in a hermetically-sealed housing by ferrofluid rings at each end of the magnet. However, the housing is large enough that the ferrofluid rings do not seal the end of the magnet against the walls of the housing. The housing is filled with a non-magnetic liquid that is immiscible with the ferrofluid. The nonmagnetic liquid wets the walls of the housing such that the ferrofluid rides on the thin film of the nonmagnetic liquid. The non-magnetic fluid is selected to have low viscosity, so that the magnet has a fast response time.

    Shock or acceleration sensor
    19.
    发明公开
    Shock or acceleration sensor 失效
    冲击或加速度传感器

    公开(公告)号:EP0848257A1

    公开(公告)日:1998-06-17

    申请号:EP97121060.4

    申请日:1997-12-01

    发明人: Yoshida, Yuki

    IPC分类号: G01P15/08 G01P15/00

    CPC分类号: G01P15/006 G01P15/105

    摘要: A shock sensor detects shocks or accelerations from all directions in a plane. A coil (24) produces a magnetic field (M). A magnetic fluid (25) is sealed in a closed container located in the magnetic field. A magnetoresistive effect element (22) is also located in the magnetic field (M) and opposes the magnetic fluid. The magnetic fluid (25) moves relative to the magnetoresistive effect element (22) when the magnetic fluid receives a shock. When the magnetoresistive effect element (22) is subjected to a change in magnetic field (M), the resistance of the magnetoresistive effect element (M) changes. The magnetoresistive effect element (M) may be formed of four elements (R1-R4) in a bridge configuration and the output of the bridge is processed in an output circuit. The output circuit outputs a sensor output when the magnetic fluid (M) moves relative to the magnetoresistive effect element (22).

    摘要翻译: 冲击传感器检测平面中各个方向的冲击或加速度。 线圈(24)产生磁场(M)。 磁性流体(25)密封在位于磁场中的密闭容器中。 磁阻效应元件(22)也位于磁场(M)中并且与磁流体相对。 当磁性流体接收到冲击时,磁性流体(25)相对于磁阻效应元件(22)移动。 当磁阻效应元件(22)经受磁场(M)的变化时,磁阻效应元件(M)的电阻改变。 磁阻效应元件(M)可以由桥结构中的四个元件(R1-R4)形成,并且桥的输出在输出电路中被处理。 当磁性流体(M)相对于磁阻效应元件(22)移动时,输出电路输出传感器输出。

    AUTOMATIC CRASH ALARM FOR AUTOMOTIVE VEHICLES
    20.
    发明授权
    AUTOMATIC CRASH ALARM FOR AUTOMOTIVE VEHICLES 失效
    自动碰撞系统的机动车辆

    公开(公告)号:EP0637288B1

    公开(公告)日:1996-12-27

    申请号:EP93912004.4

    申请日:1993-04-21

    IPC分类号: B60Q1/44 G01P15/08

    CPC分类号: B60Q1/445 G01P15/105

    摘要: The invention has as an object to detect a deceleration or acceleration of an automotive vehicle, occuring as a consequence of a collision in motorised traffic, said automotive vehicle being provided with an installation according to the invention, said detection being made by means of this installation and thus causing automatic activation of the alarm light installation, present on the automative vehicle, and thus without any action in that respect by the driver, this with the intention of drawing the attention of the other participants in the traffic as soon as possible to the dangerous traffic condition caused.