公开(公告)号：US11879906B2

公开(公告)日：2024-01-23

申请号：US17530125

申请日：2021-11-18

Applicant: InvenSense, Inc.

Inventor： Aurelio Pellegrini

IPC: G01P15/125 ,  G01C19/5712 ,  G01P1/00 ,  G01D1/08 ,  G01H1/14 ,  G01D1/02 ,  G01D1/16

CPC classification number: G01P15/125 ,  G01C19/5712 ,  G01P1/00 ,  G01D1/02 ,  G01D1/08 ,  G01D1/16 ,  G01H1/14

Abstract: A modified version of a MEMS self-test procedure is presented that can be used to detect the amplitude and frequency of an external vibration from an ambient environment. The method implements processing circuitry that correlates an output sense signal, s(t), with a plurality of periodic signal portions and a plurality of shifted periodic signal portions to generate a plurality of correlation values. A frequency associated with the external vibration is determined based on the plurality of correlation values.

公开(公告)号：US20230341242A1

公开(公告)日：2023-10-26

申请号：US18335170

申请日：2023-06-15

Applicant: Wuhan University

Inventor： Xue Wang ,  Conghao Du

IPC: G01D1/16 ,  G01B21/08

CPC classification number: G01D1/16 ,  G01B21/085

Abstract: The present application discloses a calculation method for thickness of inner oxide layer of a martensitic heat-resistant steel in steam environment. The calculation method takes into account the steam temperature, the steam pressure and the operation time, which are the three factors that have significant effects on the thickness of the oxide layer, and with the help of a metal oxidation kinetic model, the formula is mathematically modified by combining a large number of actual operation and laboratory simulation experimental data of the power plant. A calculation method for thickness of inner oxide layer of 9% Cr martensitic heat-resistant steel in steam environment is obtained by using linear fitting and curve fitting, etc.

公开(公告)号：US20160349087A1

公开(公告)日：2016-12-01

申请号：US14721999

申请日：2015-05-26

Applicant: Dicky Suryadi ,  Johannes Izak Boerhout

Inventor： Dicky Suryadi ,  Johannes Izak Boerhout

IPC: G01D7/00 ,  G01H17/00

CPC classification number: G01D7/00 ,  F02D41/1498 ,  F02D41/2422 ,  F02D2041/286 ,  F02D2041/288 ,  G01D1/16 ,  G01H17/00

Abstract: A computing systems, computer-readable medium, and method for correlating data. The method includes displaying a first data set in a primary graph having a time-based axis. The first data set is collected from a machine by a first sensor. The primary graph includes a plurality of data points representing the first data set. The method also includes receiving a selection of a selected data point of the plurality of data points, correlating the selected data point with a second data set, and displaying a secondary graph representing the secondary data set.

Abstract translation: 计算系统，计算机可读介质和用于关联数据的方法。 该方法包括在具有基于时间轴的主图形中显示第一数据集。 通过第一传感器从机器收集第一数据集。 主图包括表示第一数据集的多个数据点。 该方法还包括接收多个数据点中所选择的数据点的选择，将选择的数据点与第二数据集进行相关，并显示表示辅助数据集的次图。

公开(公告)号：US20150025850A1

公开(公告)日：2015-01-22

申请号：US14316208

申请日：2014-06-26

Applicant: Infineon Technologies AG

Inventor： Christian Reidl ,  Wolfgang Granig ,  Harald Witschnig ,  Dirk Hammerschmidt

IPC: G01M17/00

CPC classification number: G01D1/16 ,  G01D3/024 ,  G01D21/00

Abstract: A sensor interface operates to communicate a sensed quantity along one or more processing pathways and in different data representations. The signal representations can be swapped along one or more locations of the signal processing branches. These branches are independent from one another and combined at an interface component for transmission along a single path or node for a control unit.

Abstract translation: 传感器接口用于沿着一个或多个处理路径和不同的数据表示传达感测量。 信号表示可以沿着信号处理分支的一个或多个位置进行交换。 这些分支彼此独立，并且在接口部件处组合以沿着用于控制单元的单个路径或节点进行传输。

公开(公告)号：US20110257906A1

公开(公告)日：2011-10-20

申请号：US13085807

申请日：2011-04-13

Applicant: Rémy Scherrer

Inventor： Rémy Scherrer

IPC: G06F19/00 ,  G01F1/78

CPC classification number: G01F1/8409 ,  G01D1/16 ,  G01F1/8431 ,  G01F1/8436

Abstract: A method for processing a time discrete, one dimensional, measurement signal. The method includes the step of applying to the sequence a recursive filter having a variable recursion coefficient (K(n)), wherein the recursive filter is embodied in such a manner that, in each case, the output, measured value (y(n)) obtained for a measured value (x(n)) is obtainable by subtracting a preceding output, measured value (y(n−1)) from such measured value (x(n)), by multiplying the obtained difference value (d(n)) with a recursion coefficient (K(n)) associated with such measured value (x(n)) and by adding the obtained product to the preceding output, measured value (y(n−1)). For determining the recursion coefficient (K(n)) associated with a measured value (x(n)), a predetermined function (Klin(da)) rising at least sectionally with the magnitude of the difference value (da) is applied to the magnitude (da(n)) of the difference value (d(n)) obtained for such measured value and the obtained function value (Klin(n)) is applied recursion coefficient (K(n)) as corresponding to such measured value x(n), at least when the function value (Klin(n)) is greater than or equal to the recursion coefficient associated with the preceding measured value (K(n−1)).

Abstract translation: 一种用于处理时间离散的一维测量信号的方法。 该方法包括向序列应用具有可变递归系数（K（n））的递归滤波器的步骤，其中递归滤波器以这样的方式实现：在每种情况下，输出，测量值（y（n 通过将得到的差值（d（n））乘以从该测定值（x（n））中减去前一输出，测定值（y（n-1））， （n）），并将所得到的乘积加到前一个输出，即测量值（y（n-1））。 为了确定与测量值（x（n））相关联的递归系数（K（n）），将至少与差值（da）的大小区分上升的预定函数（Klin（da））应用于 对于这样的测量值获得的差值（d（n））的幅度（da（n））和所获得的函数值（Klin（n））被应用为与这样的测量值x相对应的递归系数（K（n）） （n）），至少当函数值（Klin（n））大于或等于与先前测量值（K（n-1））相关联的递归系数时）。

公开(公告)号：US07555958B2

公开(公告)日：2009-07-07

申请号：US11723773

申请日：2007-03-22

Applicant: Hajime Ito

Inventor： Hajime Ito

IPC: G01L9/04 ,  G01R1/30

CPC classification number: B60R21/0136 ,  B60R2021/0006 ,  G01D1/16

Abstract: A physical quantity detector includes a pressure-responsive bridge circuit that outputs a detection voltage including a voltage component corresponding to atmospheric pressure and a voltage component corresponding to a change quantity from the atmospheric pressure, a filter that eliminates the voltage component corresponding to the change quantity from the atmospheric pressure, and a variable gain unit that amplifies a voltage difference between the detection voltage outputted from the bridge circuit and the filter output voltage that is free form the change quantity from the atmospheric pressure.

Abstract translation: 物理量检测器包括压力响应桥电路，其输出包括对应于大气压的电压分量的检测电压和对应于来自大气压的变化量的电压分量;滤波器，其消除对应于变化量的电压分量 以及可变增益单元，其放大从桥接电路输出的检测电压与从大气压自由形成变化量的滤波器输出电压之间的电压差。

公开(公告)号：US20080126006A1

公开(公告)日：2008-05-29

申请号：US11985504

申请日：2007-11-15

Applicant: David Bertrand

Inventor： David Bertrand

IPC: G01P3/00

CPC classification number: G01D3/028 ,  B60C23/0408 ,  G01D1/16

Abstract: A method of timing a remarkable angular position (θR) of at least one sensor (12) carried by a tire (10) rotating relative to an external frame of reference. The following steps are performed: forming, from an output signal from the sensor (12), a reference signal suitable for presenting a remarkable extremum during one revolution of the tire (10); determining the time of an origin angular position (θ0) of the sensor as being the time of the remarkable extremum of the reference signal; and determining the time of the remarkable angular position (θR) relative to the time of the origin angular position.

Abstract translation: 定时由轮胎（10）承载的至少一个传感器（12）的相对于外部参考框架旋转的显着角位置（θ/ R）的方法。 执行以下步骤：从传感器（12）的输出信号形成适于在轮胎（10）的一圈内呈现出极大的极值的参考信号; 确定传感器的原点角位置（θ<0> 0）的时间是参考信号的显着极值的时间; 以及确定相对于原点角位置的时间的显着的角位置（θSUB）的时间。

公开(公告)号：US07289940B2

公开(公告)日：2007-10-30

申请号：US10536760

申请日：2003-11-14

Applicant: Reinhold Altpeter ,  Georg Hoever ,  Ingo Weber

Inventor： Reinhold Altpeter ,  Georg Hoever ,  Ingo Weber

IPC: G06F17/10

CPC classification number: G05B23/0221 ,  G01D1/16

Abstract: The inventive system is used to design a technical system, which is characterized by condition variables and by diagnostic variables. A measurement field comprising first measured variables is incorporated into the design of the technical system, said first measured variables being measured with a predetermined accuracy. In addition, second measured variables can be measured with a predetermined accuracy. According to the inventive method, sensitivity variables are determined for the first measured variables. To determine said sensitivity variables, the extent to which a modification of the measurement accuracy of the first measured variables influences at least one parameter is calculated and to determine the second sensitivity variables, the extent to which the measurement of the second measured variables influences at least one parameter is calculated. The measurement field is then modified in such a way that the accuracy of the measured variables is altered, the first measured variables are removed from the measurement field and/or the second measured variables are added to the measurement field.

Abstract translation: 本发明系统用于设计技术系统，其特征在于条件变量和诊断变量。 包括第一测量变量的测量场被并入到技术系统的设计中，所述第一测量变量以预定精度被测量。 此外，可以以预定的精度测量第二测量变量。 根据本发明的方法，确定第一测量变量的灵敏度变量。 为了确定所述灵敏度变量，计算第一测量变量的测量精度的修改影响至少一个参数的程度并且确定第二灵敏度变量，第二测量变量的测量的程度至少影响 计算一个参数。 然后对测量场进行修改，使得测量的变量的精度被改变，将第一个测量的变量从测量场中移除，和/或将第二测量的变量添加到测量场。

公开(公告)号：US20070222193A1

公开(公告)日：2007-09-27

申请号：US11723773

申请日：2007-03-22

Applicant: Hajime Ito

Inventor： Hajime Ito

IPC: B60R21/16 ,  G01L7/00

CPC classification number: B60R21/0136 ,  B60R2021/0006 ,  G01D1/16

Abstract: A physical quantity detector includes a pressure-responsive bridge circuit that outputs a detection voltage including a voltage component corresponding to atmospheric pressure and a voltage component corresponding to a change quantity from the atmospheric pressure, a filter that eliminates the voltage component corresponding to the change quantity from the atmospheric pressure, and a variable gain unit that amplifies a voltage difference between the detection voltage outputted from the bridge circuit and the filter output voltage that is free form the change quantity from the atmospheric pressure.

Abstract translation: 物理量检测器包括压力响应桥电路，其输出包括对应于大气压的电压分量的检测电压和对应于来自大气压的变化量的电压分量;滤波器，其消除对应于变化量的电压分量 以及可变增益单元，其放大从桥接电路输出的检测电压与从大气压自由形成变化量的滤波器输出电压之间的电压差。

公开(公告)号：US06496784B1

公开(公告)日：2002-12-17

申请号：US09744893

申请日：2001-01-31

Applicant: Anton Dukart ,  Franz Jost

Inventor： Anton Dukart ,  Franz Jost

IPC: G01C2500

CPC classification number: G01D1/16 ,  G01D18/00

Abstract: A method of calibrating the offset of angle sensors, which determine an angle to be determined on the basis of a sine signal assigned to the angle and a cosine signal assigned to the angle. This method includes determining the sine signal and the cosine signal for at least three different angles to obtain at least three value pairs, each pair containing one sine signal value and one cosine signal value; displaying the at least three value pairs in an at least two-dimensional coordinate system that represents a sine signal-cosine signal plane and determining a point, representing the offset to be calibrated, in the coordinate system with regard to which point the at last three value pairs are located on an arc.

Abstract translation: 校准角度传感器的偏移的方法，其确定将基于分配给该角度的正弦信号确定的角度和分配给该角度的余弦信号。 该方法包括确定至少三个不同角度的正弦信号和余弦信号以获得至少三个值对，每对包含一个正弦信号值和一个余弦信号值; 在表示正弦信号余弦信号平面的至少二维坐标系中显示所述至少三个值对，并且在坐标系中确定表示要校准的偏移的点，关于哪一点，最后三个 值对位于弧线上。