METHOD AND APPARATUS FOR DETECTING BACKGROUND NOISE OF SENSOR

    公开(公告)号:US20180274942A1

    公开(公告)日:2018-09-27

    申请号:US15993909

    申请日:2018-05-31

    发明人: Bo TAN

    IPC分类号: G01D3/036

    CPC分类号: G01D3/036 G01D3/032

    摘要: A method and an apparatus for detecting a background noise of a sensor, relating to the technical field of electronics, are provided. The method for detecting a background noise of a sensor includes: receiving a sampling value output by the sensor and judging whether the sampling value falls within a background noise acceptable range; selecting the sampling value as a current background noise sampling value when the sampling value falls within the background noise acceptable range; and calculating a current background noise of the sensor according to a previous background noise and the current background noise sampling value of the sensor. Also provided is an apparatus for detecting a background noise of a sensor.

    METHOD FOR PROCESSING A MEASUREMENT SIGNAL FROM A PRESSURE MEASUREMENT CELL, AND A MEASUREMENT CELL ARRANGEMENT

    公开(公告)号:US20180259360A1

    公开(公告)日:2018-09-13

    申请号:US15571160

    申请日:2016-02-10

    申请人: INFICON AG

    发明人: Felix MULLIS

    IPC分类号: G01D3/036 G01L19/08 G01L19/12

    摘要: Method for determining a pressure in a pressure cell, wherein the method consists in the fact that a measuring signal (x) is determined, which is at least proportional to a measured pressure in the pressure cell, that an output signal (y) is produced from the measuring signal (x) using a filter unit (10) having a transfer function, in that a noise signal contained in the measuring signal is at least reduced, and preferably eliminated, that a time change of the measuring signal (x) is determined, and that the transfer function is set in a function of the time change of the measuring signal (x). In addition, a measuring cell arrangement is provided.

    ACTUATOR DRIVER
    4.
    发明申请
    ACTUATOR DRIVER 审中-公开

    公开(公告)号:US20180100985A1

    公开(公告)日:2018-04-12

    申请号:US15726802

    申请日:2017-10-06

    申请人: ROHM CO., LTD.

    IPC分类号: G02B7/02 G02B7/08 G01J1/04

    摘要: A position detection unit generates a position detection value PFB that indicates the position of a control target. A temperature detection unit generates a temperature detection value that indicates the temperature. A correction unit corrects the position detection value PFB. A controller generates a control instruction value SREF such that the position detection value PFB_CMP subjected to the correction matches a position instruction value PREF that indicates the target position of the control target. A driver unit applies a driving signal that corresponds to the control instruction value SREF to an actuator. The correction unit corrects the position detection value PFB such that the relation between the position detection value PFB and the actual position exhibits linearity that is uniform independent of the temperature.

    Charge to voltage conversion circuit for WIM sensor and WIM sensor with same
    6.
    发明授权
    Charge to voltage conversion circuit for WIM sensor and WIM sensor with same 有权
    为WIM传感器和WIM传感器充电至电压转换电路

    公开(公告)号:US09411357B2

    公开(公告)日:2016-08-09

    申请号:US14385587

    申请日:2013-03-26

    摘要: An electronic circuit that changes a charge signal into a voltage signal within a sensor suitable for direct installation in a roadway can be connected to two single-core cables that need not be highly insulating yet can realize the required power supply of the electronics. The circuit includes an integrated impedance converter (IEPE) at the output to a two-core cable and a charge amplifier with an IC1 that has two inputs. A capacitor Cc is connected in series to the signal output of the sensor at one input of the IC1. A Zener diode D is arranged between the ground output of the sensor and the second input of the IC1 and can be supplied with power by a resistor R1 in conjunction with a power supply arranged on the output side in order to adapt the potential at the second input of the IC1.

    摘要翻译: 将电荷信号改变成适于直接安装在道路中的传感器内的电压信号的电子电路可以连接到两个不需要高度绝缘的单芯电缆,而可实现电子设备所需的电源。 该电路包括在两芯电缆的输出端的集成阻抗转换器(IEPE)和具有两个输入的IC1的电荷放大器。 在IC1的一个输入处,电容器Cc与传感器的信号输出串联连接。 一个齐纳二极管D配置在传感器的接地输出端和IC1的第二个输入端之间,并且可以通过一个电阻器R1与布置在输出端的电源一起供电,以便调整第二个电位 输入IC1。

    MAGNETIC LINEAR OR ROTARY ENCODER
    7.
    发明申请
    MAGNETIC LINEAR OR ROTARY ENCODER 有权
    磁线或旋转编码器

    公开(公告)号:US20160033305A1

    公开(公告)日:2016-02-04

    申请号:US14761056

    申请日:2014-02-28

    IPC分类号: G01D5/22

    摘要: The invention relates to a magnetic linear or rotary encoder (1) for monitoring the motion of a body, comprising: an exciting unit (8), which reproduces said motion and has at least one pair of primary permanent magnets (16, 17), which are arranged opposite one another and are magnetically connected to one another by means of a ferromagnetic yoke body (9) and form a measurement field space therebetween; a fine-resolution sensor unit (29; 29′), which is used to determine a fine position value, is arranged in a stationary manner and has a plurality of magnetic field sensors (25, 26, 27, 28); and processing electronics, which evaluate the signals of the fine-resolution sensor unit and have a data memory. Said magnetic linear or rotary encoder is characterised in that a ferromagnetic deflecting body (18) is provided, which deflects at least some of the magnetic field lines of the magnetic field produced by the primary permanent magnets in a direction permanent to the magnetisation vector of the primary permanent magnets, that the fine-resolution sensor unit is designed and arranged in such a way that the individual magnetic field sensors of the fine-resolution sensor unit are penetrated by the magnetic field lines deflected by the deflecting body by means of a perpendicular component, that at least the yoke body is made of a thermally treated, ferromagnetic material, and that the fine-resolution sensor unit does not contain a ferromagnetic component.

    摘要翻译: 本发明涉及一种用于监测主体运动的磁性线性或旋转编码器(1),包括:激励单元(8),其再现所述运动并具有至少一对主永磁体(16,17), 它们彼此相对布置并且通过铁磁轭体(9)彼此磁连接并在它们之间形成测量场空间; 用于确定精细位置值的精细分辨率传感器单元(29; 29')以固定方式布置并具有多个磁场传感器(25,26,27,28); 以及处理电子设备,其评估精细分辨率传感器单元的信号并具有数据存储器。 所述磁性线性或旋转式编码器的特征在于提供了一种铁磁偏转体(18),其使至少一些由主永磁体产生的磁场的磁场线沿永久磁化线 主要永磁体,精细分辨率传感器单元被设计和布置成使得精细分辨率传感器单元的各个磁场传感器被由偏转体偏转的磁场线穿过垂直分量 至少轭体由热处理的铁磁材料制成,并且精细分辨率传感器单元不包含铁磁性部件。

    METHOD FOR OPERATING A PORTABLE ELECTRONIC DEVICE
    8.
    发明申请
    METHOD FOR OPERATING A PORTABLE ELECTRONIC DEVICE 审中-公开
    操作便携式电子设备的方法

    公开(公告)号:US20150349570A1

    公开(公告)日:2015-12-03

    申请号:US14410963

    申请日:2013-04-18

    申请人: Sensirion AG

    IPC分类号: H02J7/00

    摘要: In a method for operating a portable electronic device an ambient temperature (TS) of the portable electronic device (2) is sensed by means of a temperature sensor (1). It is further detected if a rechargeable energy storage (22) of the portable electronic device (2) is in a process of being recharged. If the energy storage (22) is detected to be in a process of being recharged a compensated ambient temperature (TA) is determined dependent on at least the sensed ambient temperature (TS) and dependent on information (Pi) related to a charging current for recharging the energy storage (22).

    摘要翻译: 在便携式电子设备的操作方法中,通过温度传感器(1)感测便携式电子设备(2)的环境温度(TS)。 进一步检测便携式电子设备(2)的可再充电能量存储器(22)是否处于被再充电的过程中。 如果检测到能量储存(22)处于正在再充电的过程中,则补偿的环境温度(TA)至少取决于所感测的环境温度(TS)并且取决于与充电电流相关的信息(Pi) 为能量储存(22)充电。

    PORTABLE ELECTRONIC DEVICE
    9.
    发明申请
    PORTABLE ELECTRONIC DEVICE 有权
    便携式电子设备

    公开(公告)号:US20150192477A1

    公开(公告)日:2015-07-09

    申请号:US14410929

    申请日:2013-04-18

    申请人: Sensirion AG

    IPC分类号: G01K13/00

    摘要: In a portable electronic device components (2) consuming electrical power during operation may generate heat. A temperature sensor (1) for sensing an ambient temperature (TS) of the portable electronic device may as a consequence not supply the correct temperature value. It is suggested to provide a compensator (4) for determining a compensated ambient temperature (TA) dependent on at least the sensed ambient temperature (TS) and information (Pi) related to the electrical power consumed by at least one of the components (2).

    摘要翻译: 在便携式电子设备中,在操作期间消耗电力的部件(2)可能产生热量。 用于感测便携式电子设备的环境温度(TS)的温度传感器(1)可能不能提供正确的温度值。 建议提供一种补偿器(4),其用于根据至少感测到的环境温度(TS)和与至少一个部件(2)消耗的电功率有关的信息(Pi)来确定补偿环境温度(TA) )。

    POSITION TRANSDUCER
    10.
    发明申请
    POSITION TRANSDUCER 有权
    位置传感器

    公开(公告)号:US20150153204A1

    公开(公告)日:2015-06-04

    申请号:US14389741

    申请日:2013-10-25

    IPC分类号: G01D5/347

    摘要: Provided is a position transducer which can be manufactured at low cost, improve the signal-to-noise ratio of an output obtained from a detector, and obtain a stable output even if the temperature changes. A position transducer 100 includes a butterfly-shaped reflector 7 attached to a rotating shaft 2 of a rotation restriction motor 1, an LED die 4 disposed to face a central portion of the reflection surface of the reflector 7, a diffused-light absorbing member disposed on the surfaces of a diffused light absorber 3 and a case 5, installed on the fixed side of the motor 1 so as to surround the reflector 7 with a distance from the reflector 7 at the rear of the reflector 7 as viewed from the LED die 4 and absorbing illumination light from the LED die 4 which has not illuminated the reflection surface, and detectors 11 mounted on the same printed circuit board 6 as the LED die 4 to detect an image reflected by the reflector 7.

    摘要翻译: 提供一种可以以低成本制造的位置传感器,提高从检测器获得的输出的信噪比,并且即使温度改变也能获得稳定的输出。 位置传感器100包括安装在旋转限制电动机1的旋转轴2上的蝶形反射器7,设置成面向反射器7的反射面的中心部分的LED管芯4,设置在散射光吸收部件 在散射光吸收体3和壳体5的表面上,安装在电动机1的固定侧,以便从LED模具观察到的方式围绕反射器7与反射器7后面的反射器7距离 并且吸收来自没有照射反射面的LED管芯4的照明光和安装在与LED管芯4相同的印刷电路板6上的检测器11,以检测由反射器7反射的图像。