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1.发明授权公开(公告)号：US06353793B1
公开(公告)日：2002-03-05
申请号：US09243392
申请日：1999-02-01
IPC分类号： G01M112
CPC分类号： G01M1/125
摘要： A method and apparatus for determining the center of gravity of an aircraft having a plurality of wheels includes the steps of determining the load on one of the plurality of aircraft wheels, determining the aircraft inclination with respect to level, relating the wheel load to the aircraft center of gravity based on the aircraft inclination. The load determination may be conducted on the aircraft nose wheel using a lever apparatus including a frame having a forward end and an aft end the aft end including an attachment device located at the aft end for providing detachable engagement with the wheel axle. The lever apparatus also includes a pivot arm having a first end and a second end, the first end pivotally attached to the frame at a pivot point located between the forward end and the aft end of the frame. A load cell is positioned on the frame so as to be engaged by the pivot arm as the pivot arm pivots about the pivot point for generating a signal indicative of the force generated on the frame as the wheel is raised. The lever apparatus operates about a fulcrum point located forward of the frame aft end about which the lever apparatus raises the aircraft wheel. A processor may be provided for receiving the load cell signal and determining wheel load.
摘要翻译： 用于确定具有多个车轮的飞行器的重心的方法和装置包括以下步骤：确定多个飞行器车轮中的一个的负载，确定飞机相对于水平面的倾斜度，将车轮负载与飞机相关联 基于飞机倾角的重心。 负载确定可以使用杠杆装置在飞机前轮上进行，杠杆装置包括具有前端和后端的框架，后端包括位于后端的附接装置，用于提供与轮轴的可拆卸接合。 杠杆装置还包括具有第一端和第二端的枢转臂，第一端在位于框架的前端和后端之间的枢转点枢转地附接到框架。 负载传感器定位在框架上，以便当枢转臂围绕枢轴点枢转时枢转臂接合，以产生指示当车轮升起时在框架上产生的力的信号。 杠杆装置围绕位于框架后端的支点处操作，杠杆装置围绕该后端点升高飞行器轮。 可以提供处理器来接收负载传感器信号并确定车轮负载。
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公开(公告)号：US06564142B2
公开(公告)日：2003-05-13
申请号：US09997466
申请日：2001-11-29
IPC分类号： G01M112
CPC分类号： G01M1/125
摘要： A method and apparatus for determining the center of gravity of an aircraft having a plurality of wheels includes the steps of determining the load on one of the plurality of aircraft wheels, determining the aircraft inclination with respect to level, relating the wheel load to the aircraft center of gravity based on the aircraft inclination. The load determination may be conducted by measuring the load on the nose wheel or at some selected point along the longitudinal axis spaced from the main landing gear. An inclinometer is used to measure the aircraft inclination at the time the load is determined. A processor may be provided for receiving the load cell signal and inclination information, and determining wheel load.
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公开(公告)号：US3572462A
公开(公告)日：1971-03-30
申请号：US3572462D
申请日：1969-01-07
申请人： JOSEPH C GRAY
发明人： GRAY JOSEPH C
CPC分类号： G01V1/047 , G01V1/003 , G01V1/137 , Y10S181/401
摘要： Apparatus for use in seismic exploration comprising energy propogating means for directing energy downwardly vertically into an earth formation and means for receiving and recording such energy reflected vertically upwardly from a sub-surface bed or strata. The apparatus includes an energy source housing of generally dome shape adapted to be placed in a downwardly opening position on the bottom, and within which an energy source may be discharged to generate a vertically downwardly directed force against the sea floor, and a receptor or seismometer housing also of generally doe shape adapted to be similarly positioned on the sea bottom to receive vertically upwardly reflected energy from subsurface strata. The invention also includes a method of seismic exploration which comprises propagating vertically downwardly directed energy at the earths surface and receiving and recording the vertically upwardly reflected energy from a subsurface formation, to provide information concerning the location and character of such formation.
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公开(公告)号：US08800813B1
公开(公告)日：2014-08-12
申请号：US13296972
申请日：2011-11-15
申请人： John K. Buckles , John P. Hotek , John T. Hays , Gary D. Westland , Allan D. Olson , Joseph C. Gray
发明人： John K. Buckles , John P. Hotek , John T. Hays , Gary D. Westland , Allan D. Olson , Joseph C. Gray
CPC分类号： G01F11/021
摘要： A metering product delivery pump system that includes a product accumulator assembly, at least one controlled product dispensing assembly and a rotary gate valve assembly for each controlled product dispensing assembly is provided. The product accumulator assembly is coupled to receive product. The at least one controlled product dispensing assembly outputs product to a product package. Each rotary gate valve assembly is coupled to selectively pass product between the product accumulator system and an associated controlled product dispensing assembly. Each rotary gate valve assembly includes a rotary gate valve and at least one blade configured and arranged to engage the rotary gate valve to cut solid product as the rotary gate valve is rotated.
摘要翻译： 提供了一种计量产品输送泵系统，其包括产品储存器组件，至少一个受控产品分配组件和用于每个受控产品分配组件的旋转闸阀组件。 产品蓄能器组件连接以接收产品。 所述至少一个受控产品分配组件将产品输出到产品包装。 每个旋转闸阀组件被联接以选择性地在产品蓄能器系统和相关联的受控产品分配组件之间通过产品。 每个旋转闸阀组件包括旋转闸阀和至少一个叶片，其构造和布置成与旋转闸阀接合以在旋转闸阀旋转时切割固体产品。
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5.发明授权
公开(公告)号：US5740029A
公开(公告)日：1998-04-14
申请号：US604656
申请日：1996-02-21
IPC分类号： B60T13/66 , B61C17/12 , G05B19/042 , G05B15/00 , B60T13/00
CPC分类号： G05B19/0421 , B60T13/665 , B61C17/12 , G05B2219/2231 , G05B2219/25342
摘要： The invention provides a real time process control system for control of machinery. The system has a master control module and a slave control module which receives control signals from the master control module. Both control modules send control signals to a control effector and cause changes in at least one effect causing quality of the control effector. The slave control module establishes a target value for the effect causing quality of the control effector based on the signal it receives from the master microprocessor. A sensor connected to the control effector and to the slave control module provides signals in the slave control module which indicate an actual value for the effect causing quality of the control effector. A feedback loop controls the control signal from the slave microprocessor to the control effector to adjust the value of its effect causing quality in accordance with the target value. In the event that the signal from the master control module to the slave control module is interrupted a discrepancy between actual and target values of the effect causing quality indicates interruption of the signal. The invention provides an increased deadband for the feedback loop to permit a discrepancy large enough to be detectable and useable as an indication of interruption of the signal from the master control module to the slave control module.
摘要翻译： 本发明提供了一种用于机械控制的实时过程控制系统。 该系统具有从主控模块接收控制信号的主控模块和从控制模块。 两个控制模块都将控制信号发送到控制执行器，并引起至少一个效应的变化，从而导致控制效应器的质量。 从控制模块基于从主微处理器接收到的信号，建立起控制效应器质量影响的目标值。 连接到控制执行器和从控制模块的传感器提供从控制模块中的信号，其指示引起控制效应器质量的效应的实际值。 反馈回路控制从副微处理器到控制执行器的控制信号，以根据目标值调整其效果的值，从而产生质量。 在主控制模块到从控制模块的信号被中断的情况下，导致质量的效果的实际值和目标值之间的差异表示信号中断。 本发明为反馈回路提供增加的死区，以允许足够大的差异作为从主控制模块到从控制模块的信号中断的指示被检测和使用。
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