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    • 91. 发明授权
    • Apparatus and method for eliminating varying pressure fluctuations in a pressure transducer
    • 用于消除压力传感器中变化的压力波动的装置和方法
    • US07921724B2
    • 2011-04-12
    • US12574587
    • 2009-10-06
    • Anthony D. KurtzRichard MartinRobert GardnerAdam Kane
    • Anthony D. KurtzRichard MartinRobert GardnerAdam Kane
    • G01L9/06
    • G01L19/0609G01L13/025
    • A single pressure sensing capsule has a reference pressure ported to the rear side of a silicon sensing die. The front side of the silicon sensing die receives a main pressure at another port. The silicon sensing die contains a full Wheatstone bridge on one of the surfaces and within the active area designated as the diaphragm area. Thus, the difference of the main and reference pressure results in the sensor providing an output equivalent to the differential pressure, namely the main pressure minus the reference pressure which is the stress induced in a sensing diaphragm. In any event, the reference pressure or main pressure may be derived from a pump pressure which is being monitored. The pump pressure output is subjected to a pump ripple or a sinusoidally varying pressure. In order to compensate for pump ripple, one employs a coiled tube. The tube length is selected to suppress the pump ripple as applied to the sensor die. In this manner, the pump ripple cannot cause resonance which would result in pressure amplification and which pressure amplification would destroy the sensor.
    • 单个压力感测胶囊具有移动到硅感测裸片的后侧的参考压力。 硅感测模具的前侧在另一端口处接收主压力。 硅感测裸片在其中一个表面上以及指定为隔膜区域的有源区域内包含一个完整的惠斯通电桥。 因此,主要和参考压力的差异导致传感器提供与差压相当的输出,即主压力减去在感测膜片中感应的应力的参考压力。 无论如何,参考压力或主要压力可以从正被监测的泵压力导出。 泵压力输出受到泵波动或正弦变化的压力。 为了补偿泵波动,采用一个盘管。 选择管长度以抑制应用于传感器管芯的泵波动。 以这种方式,泵波动不会引起共振,这将导致压力放大,哪个压力放大会破坏传感器。
    • 93. 发明授权
    • Enterprise wireless local area network switching system
    • 企业无线局域网交换系统
    • US07779071B2
    • 2010-08-17
    • US12153679
    • 2008-05-22
    • Kar-Wing Edward LorRichard MartinAlarabi Omar Hassen
    • Kar-Wing Edward LorRichard MartinAlarabi Omar Hassen
    • G06F15/173H04K1/00
    • H04L29/08072H04L29/06027H04L63/102H04L63/107H04L63/108H04L63/1458H04W12/08H04W12/12H04W74/06H04W84/12
    • A process of controlling a flow of data in a wireless network providing wireless access to the wireless network by wireless devices is disclosed. Data is received from a wireless device by a network device, through one access point of a plurality of access points in communication with the network device, indicating a client identifier for the wireless device. The client identifier is forwarded to an authentication server and the network device mediated authentication of the wireless device with the authentication server. Thereafter, data packets received from portions of the wireless network and from the plurality of access points are evaluated and the received data packets are passed to portions of the wireless network and to the plurality of access points, based on the evaluation of the received data packets. In addition, the network device periodically polls for a status of the wireless device from the access point.
    • 公开了一种控制无线网络中的数据流的过程,该无线网络通过无线设备提供对无线网络的无线接入。 数据通过网络设备通过与网络设备通信的多个接入点的一个接入点从无线设备接收,指示无线设备的客户端标识符。 客户端标识符转发到认证服务器,并且网络设备使用认证服务器中介无线设备的认证。 此后,基于对接收到的数据分组的评估,评估从无线网络的部分和从多个接入点接收的数据分组,并且接收的数据分组被传递到无线网络和多个接入点的部分 。 此外,网络设备周期性地从接入点轮询无线设备的状态。
    • 94. 发明授权
    • Multiple axis load cell controller
    • 多轴称重传感器控制器
    • US07743672B2
    • 2010-06-29
    • US12157029
    • 2008-06-06
    • Anthony D. KurtzAdam KaneRichard MartinRobert Gardner
    • Anthony D. KurtzAdam KaneRichard MartinRobert Gardner
    • G01D7/00
    • G01N3/22G01L3/1457G01L5/161G01L5/223G01N3/08G01N2203/0021G01N2203/0623
    • There is disclosed a multiple axis load cell or controller in which axial and torsion measurements are decoupled while maximizing the outputs of both measurements. The active member of the load cell is a wheel with dual beams as the spokes. The wheel thus has four spokes or four beam members, each spoke is a pair of rectangular cross-section beams, orthogonal to each other. The beams have strain gages on the wide surfaces which measure the bending strain which is proportional to torsion or the axial input. There is an inner beam section and an outer beam section associated with each spoke and orthogonal to each other. The outer beams have the wide surface normal to the axis of the load cell. This beam section is more sensitive to the axial tension/compression input. The inner beam sections have their wide surface parallel to the axis of the load cell and are much less sensitive to bending but are sensitive to torsion. Therefore when a torsion or twisting motion is applied to the load cell, the inner beams with their wide surface parallel to the axis of the wheel are more sensitive and bend more. These beams experience bending as a result of the torsion input and have strain gages formed in a Wheatstone bridge arrangement to provide an output proportional to the torsion. The outer beams also have gages mounted thereon which are also wired in a Wheatstone bridge configuration and which Wheatstone bridge output of these gages are proportional to the axial force.
    • 公开了一种多轴称重传感器或控制器,其中轴向和扭转测量被解耦,同时最大化两个测量的输出。 称重传感器的活动构件是具有双梁作为轮辐的车轮。 因此,车轮具有四个轮辐或四个梁构件,每个轮辐是一对彼此正交的矩形横截面梁。 梁在宽表面上具有应变计,其测量与扭转或轴向输入成比例的弯曲应变。 存在与每个辐条相关联并且彼此正交的内梁部分和外部梁部分。 外梁具有与测力传感器的轴线垂直的宽表面。 该梁部分对轴向张力/压缩输入更敏感。 内梁部分的宽表面平行于称重传感器的轴线,并且对弯曲敏感度较低,但对扭转敏感。 因此,当对称重传感器施加扭转或扭转运动时,具有与车轮轴线平行的宽表面的内梁更敏感并且弯曲得更多。 这些梁由于扭转输入而经历弯曲,并且在惠斯登电桥布置中形成应变计以提供与扭转成比例的输出。 外梁还具有安装在其上的规格,其也以惠斯通电桥配置布线,并且这些计量器的惠斯通电桥输出与轴向力成比例。
    • 97. 发明授权
    • Automatic locking system for dumping toy
    • 用于倾倒玩具的自动锁定系统
    • US07658662B2
    • 2010-02-09
    • US11655236
    • 2007-01-19
    • Daniel TremblayStephane CyrRichard Martin
    • Daniel TremblayStephane CyrRichard Martin
    • A63H17/06
    • A63H7/00A63H17/06
    • A toy having a pivoting member such as a dump bucket or bed, with an automatic locking system on the pivoting member. An embodiment of the present invention provides toy having a chassis, a pivoting member pivotably and slideably mounted on the chassis, and a latch mechanism. The pivoting member pivots with respect to a pivot axis and slides in a direction radial to the pivot axis from a first position to a second position. The latch mechanism engages the chassis with the pivoting member in the first position and prevents the pivoting member from pivoting, and disengages the chassis from the pivoting member in the second position to allow the pivoting member to pivot.
    • 具有诸如倾卸式铲斗或床的枢转构件的玩具,在枢转构件上具有自动锁定系统。 本发明的一个实施例提供一种玩具,其具有底盘,可枢转和可滑动地安装在底盘上的枢转构件和闩锁机构。 枢转构件相对于枢转轴线枢转并且在从第一位置到第二位置的枢转轴线的径向方向上滑动。 闩锁机构将枢转构件与第一位置中的枢转构件接合,并且防止枢转构件枢转,并且在第二位置使底盘与枢转构件脱离接合以允许枢转构件枢转。
    • 98. 发明申请
    • APPARATUS AND METHOD FOR ELIMINATING VARYING PRESSURE FLUCTUATIONS IN A PRESSURE TRANSDUCER
    • 用于消除压力变送器中变化的压力波动的装置和方法
    • US20100018319A1
    • 2010-01-28
    • US12574587
    • 2009-10-06
    • Anthony D. KurtzRichard MartinRobert GardnerAdam Kane
    • Anthony D. KurtzRichard MartinRobert GardnerAdam Kane
    • G01L7/10G01L9/06
    • G01L19/0609G01L13/025
    • A single pressure sensing capsule has a reference pressure ported to the rear side of a silicon sensing die. The front side of the silicon sensing die receives a main pressure at another port. The silicon sensing die contains a full Wheatstone bridge on one of the surfaces and within the active area designated as the diaphragm area. Thus, the difference of the main and reference pressure results in the sensor providing an output equivalent to the differential pressure, namely the main pressure minus the reference pressure which is the stress induced in a sensing diaphragm. In any event, the reference pressure or main pressure may be derived from a pump pressure which is being monitored. The pump pressure output is subjected to a pump ripple or a sinusoidally varying pressure. In order to compensate for pump ripple, one employs a coiled tube. The tube length is selected to suppress the pump ripple as applied to the sensor die. In this manner, the pump ripple cannot cause resonance which would result in pressure amplification and which pressure amplification would destroy the sensor.
    • 单个压力感测胶囊具有移动到硅感测裸片的后侧的参考压力。 硅感测模具的前侧在另一端口处接收主压力。 硅感测裸片在其中一个表面上以及指定为隔膜区域的有源区域内包含一个完整的惠斯通电桥。 因此,主要和参考压力的差异导致传感器提供与差压相当的输出,即主压力减去在感测膜片中感应的应力的参考压力。 无论如何,参考压力或主要压力可以从正被监测的泵压力导出。 泵压力输出受到泵波动或正弦变化的压力。 为了补偿泵波动,采用一个盘管。 选择管长度以抑制应用于传感器管芯的泵波动。 以这种方式,泵波动不会引起共振,这将导致压力放大,哪个压力放大会破坏传感器。