Error detection and fault isolation for multi-function air data probes and systems
    1.
    发明授权
    Error detection and fault isolation for multi-function air data probes and systems 有权
    多功能空气数据探头和系统的错误检测和故障隔离

    公开(公告)号:US06761057B2

    公开(公告)日:2004-07-13

    申请号:US09952043

    申请日:2001-09-13

    IPC分类号: G01C2500

    CPC分类号: G01P21/025 G01P13/025

    摘要: A method of detecting errors in air data sensing systems having multi-function probes being used in combinations to define probe systems includes a step (A) of, for each probe system, making a first prediction of an aircraft parameter as a function of local angles of attack at two member probes of the particular system, and making a second prediction of the aircraft parameter as a function of local pressure ratios at the two member probes of the particular system. A step (B) is performed in which, for each of the probe systems, the first and second predictions of the aircraft parameter are compared to determine whether the first and second predictions are within a predetermined threshold of each other. Then, a step (C) is performed in which, for each of the probe systems, if the first and second predictions of the aircraft parameter are not within the predetermined threshold of each other, then the particular probe system is identified as having a malfunctioning member probe.

    摘要翻译: 一种用于检测具有组合定义探测系统的多功能探测器的空气数据传感系统中的误差的方法,包括对于每个探测系统,对飞机参数的第一预测作为局部角度的函数的步骤(A) 在特定系统的两个成员探针处的攻击,以及作为特定系统的两个成员探针处的局部压力比的函数的飞机参数的第二预测。 执行步骤(B),其中对于每个探测系统,比较飞行器参数的第一和第二预测以确定第一和第二预测是否在彼此的预定阈值内。 然后,执行步骤(C),其中对于每个探测系统,如果飞行器参数的第一和第二预测不在彼此的预定阈值内,则特定探测系统被识别为具有故障 成员探针。

    Iterative method of aircraft sideslip compensation for multi-function probe air data systems

    公开(公告)号:US06594559B2

    公开(公告)日:2003-07-15

    申请号:US09851485

    申请日:2001-05-08

    IPC分类号: G01C2100

    CPC分类号: G05D1/0204

    摘要: In an iterative method of determining aircraft flight data parameters using first and second multi-function probes, an assumed value of a first aircraft parameter is defined to be equal to an initial value. Using the assumed value of the first aircraft parameter together with the respective local angles of attack determined at first and second multi-function probes, first and second estimates of a second aircraft parameter are calculated and compared. If the first and second estimates of the second aircraft parameter are within tolerance of each other, then the first aircraft parameter is approximately equal to the assumed value, and the second aircraft parameter is determined from the first and second estimates. If the first and second estimates of the second aircraft parameter are not within tolerance of each other, then an iterative process is continued to correctly determine the first and second parameters.

    Multi-function air data probes using neural network for sideslip compensation
    3.
    发明授权
    Multi-function air data probes using neural network for sideslip compensation 有权
    多功能空气数据探头采用神经网络进行侧滑补偿

    公开(公告)号:US06604029B2

    公开(公告)日:2003-08-05

    申请号:US09851289

    申请日:2001-05-08

    IPC分类号: G06F1518

    摘要: An air data sensing probe such as a multi-function probe includes a barrel having multiple pressure sensing ports for sensing multiple pressures. Instrumentation coupled to the pressure sensing ports provides electrical signals indicative of the pressures. An inertial navigation system input of the probe receives electrical signals indicative of inertial navigation data for the aircraft. A neural network of the probe receives as inputs the electrical signals indicative of the multiple pressures and the electrical signals indicative of the inertial navigation data. The neural network is trained or configured to provide as an output, electrical signals indicative of an air data parameter.

    摘要翻译: 诸如多功能探头的空气数据感测探头包括具有用于感测多个压力的多个压力感测端口的筒体。 耦合到压力感测端口的仪器提供指示压力的电信号。 探测器的惯性导航系统输入接收指示飞机的惯性导航数据的电信号。 探头的神经网络接收表示多个压力的电信号和指示惯性导航数据的电信号作为输入。 神经网络被训练或配置为提供指示空气数据参数的电信号作为输出。

    Method of and apparatus for using an alternate pressure to measure mach number at high probe angles of attack
    6.
    发明授权
    Method of and apparatus for using an alternate pressure to measure mach number at high probe angles of attack 有权
    在高探测攻角下使用交替压力测量马赫数的方法和装置

    公开(公告)号:US06305218B1

    公开(公告)日:2001-10-23

    申请号:US09255173

    申请日:1999-02-22

    申请人: Roger D. Foster

    发明人: Roger D. Foster

    IPC分类号: G01C2100

    摘要: A method of and apparatus for obtaining angle of attack, local static pressure and local pitot pressure from measured pressure values at ports of a probe having angle measuring ports with angle measuring axes lying in a plane and a pitot port having an axis lying along an axis in the plane bisecting the angle between the measuring ports. A table of known values of angle of attack relative to measured pressure ratio at measured Mach numbers determined by P1/Pm is stored in memory and used when P1 is greater than the pressure sensed at the pitot port (Pt′m), P1 is the pressure measured at the one of the angle measuring ports that is higher than the pressure measured at the other angle measuring port, and Pm is an average of the pressures at the angle measuring ports. The correlation of the ratio of measured pressures on the probe relative to angle of attack is determined using the known values P1/Pm at different angles of attack either in wind tunnel tests or by computer simulation. The known values are stored in a look-up table in an onboard air data computer. The values that have been stored then can be retrieved to solve for the correct angle of attack, using the measured pressures P1, P2 and Pt′m. The angle of attack values are used with an algorithm to determine local pitot and static pressure.

    摘要翻译: 一种用于从具有角度测量端口的探头端口处的测量压力值获得迎角,局部静压力和局部皮托托压力的方法和装置,其中角度测量轴位于平面中,并且皮托孔具有沿着轴线的轴线 在将测量端口之间的角度平分的平面中。 由P1 / Pm确定的测量马赫数时的迎角相对于测量压力比的已知值的表存储在存储器中,并且当P1大于皮托端口(Pt'm)处感测到的压力时使用,P1是 在角度测量端口之一处测量的压力高于在另一个角度测量端口测量的压力,Pm是角度测量端口处的压力的平均值。 在风洞试验或计算机模拟中,使用不同迎角的已知值P1 / Pm确定探头上测得的压力与攻角的比值的相关性。 已知值存储在车载空中数据计算机的查找表中。 可以使用测量的压力P1,P2和Pt'm来检索已经存储的值以解决正确的迎角。 角度值与算法一起使用以确定局部皮托和静压力。

    Semi-flush air data sensor
    7.
    发明授权

    公开(公告)号:US06550344B2

    公开(公告)日:2003-04-22

    申请号:US09849271

    申请日:2001-05-04

    IPC分类号: G01P518

    CPC分类号: G01P5/16 G01P5/165 G01P13/025

    摘要: A semi-flush air data sensing probe is formed as an elongated bubble housing directly supported on an aircraft surface having a generally longitudinally extending rounded outer edge surface with a rounded contoured leading end. The housing has top and bottom wall surfaces extending from the supporting surface to the rounded outer surface. The trailing end of the housing is smaller than the leading end and is contoured to provide for smooth airflow past the housing. A central longitudinally extending plane that bisects the housing and which is perpendicular to the supporting surface, forms a reference. A forwardly facing port is at the leading end and centered on the central plane, and a pair of angle of attack sensing ports are on the leading end and are symmetrically located on opposite sides of the longitudinally extending plane. A static pressure sensing port also is provided on the housing at a position along the rounded outer edge surface and spaced downstream from the leading end.

    Wire dispensing spool attachment device
    8.
    发明授权
    Wire dispensing spool attachment device 失效
    电线分配阀芯附件

    公开(公告)号:US5927642A

    公开(公告)日:1999-07-27

    申请号:US010762

    申请日:1998-01-22

    申请人: Roger D. Foster

    发明人: Roger D. Foster

    摘要: A removable auxiliary spool device is provided including a spool having a pair of end plates maintained fixed in parallel planes via a central portion about which a string of material may be stored. Further provided is a pair of end assemblies each having an end face and an engagement portion coupled to the end face for being removably coupled to an associated one of the end plates of the spool thereby allowing convenient dispensing of the string of material.

    摘要翻译: 提供了一种可拆卸的辅助卷轴装置,其包括具有经由中心部分固定在平行平面中的一对端板的卷轴,在该中心部分可以存储一串材料。 还提供了一对端组件,每个端部组件具有端面和联接到端面的接合部分,用于可拆卸地联接到线轴的相关联的一个端板,从而允许方便地分配材料串。