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    • 71. 发明申请
    • ACTIVE HEAVE COMPENSATION WITH ACTIVE DAMPING CONTROL
    • 主动阻尼控制主动补偿
    • US20110146556A1
    • 2011-06-23
    • US12971859
    • 2010-12-17
    • QingHui Yuan
    • QingHui Yuan
    • B63B39/00
    • G05D15/01B63B39/005B63B39/02B66D1/525E21B19/006
    • A damping control system includes a first sensor configured to detect movement of a vessel and generate a first signal representing the vessel movement and a second sensor configured to detect movement of a cable and generate a second signal representing the cable movement. An actuator is configured to dampen a force applied to a payload during a force event. The force event is at least partially caused by the movement of the vessel and the cable. A controller is configured to identify the force event based at least in part on the first and second signals and control the actuator during the force event to substantially dampen the force applied to the payload.
    • 阻尼控制系统包括第一传感器,其被配置为检测容器的运动并产生表示血管运动的第一信号,以及配置成检测电缆的运动并产生代表电缆运动的第二信号的第二传感器。 致动器构造成在力事件期间抑制施加到有效载荷的力。 力事件至少部分地是由船只和电缆的移动造成的。 控制器被配置为至少部分地基于第一和第二信号来识别力事件,并且在力事件期间控制致动器以基本上抑制施加到有效载荷的力。
    • 76. 发明授权
    • Method for controlling a tension of a metal strip in a heat treatment
furnace
    • 控制热处理炉中金属带张力的方法
    • US5739438A
    • 1998-04-14
    • US667640
    • 1996-06-21
    • Hiroshi SawadaKohji OmoriHiroshi YoshimuraTakumi Imajuku
    • Hiroshi SawadaKohji OmoriHiroshi YoshimuraTakumi Imajuku
    • C21D11/00C21D9/56G05D15/01G01L1/26
    • G05D15/01C21D9/564
    • A method for controlling a tension of a metal strip in a heat treatment furnace, comprising (a) travelling the metal strip through a plurality of tapered rolls; (b) measuring a tension (.sigma.) working on the metal strip through at least one of the tapered rolls; (c) computing a critical tension (.sigma..sub.cr) which generates heat buckle based on a thickness of the metal strip, a width of the metal strip, an elastic modulus of the metal strip, a length of a flat roll portion and a roll taper under a hot state; and (d) controlling the tension measured by the step (b) to be over a tension (.sigma..sub.min) sufficient to prevent transverse displacement but less than the critical tension (.sigma..sub.cr) which generates heat buckle. The critical tension (.sigma..sub.cr) which generates heat buckle is calculated by the equation: .sigma..sub.cr =K.multidot.t.sup.A .multidot.(W-FL).sup.B .multidot..theta..sub.h.sup.c .multidot.E, where t is the thickness of the metal strip (mm), W is the width of the metal strip (mm), FL is the length of a flat roll portion, .theta..sub.h is the roll taper (rad) under a hot state, E is the elastic modulus of the metal strip (kgf/mm.sub.2), and K, A, B, C are constants. The tension (.sigma..sub.min) sufficient to prevent transverse displacement is obtained as a minimum value of the tension (.sigma.) satisfying the following equations: .DELTA.D
    • 一种用于控制热处理炉中的金属带的张力的方法,包括:(a)使所述金属带穿过多个锥形辊; (b)通过至少一个所述锥形辊测量在所述金属条上的张力(σ); (c)计算基于金属带的厚度,金属带的宽度,金属带的弹性模量,平坦辊部分的长度和辊锥度来产生热带扣的临界张力(σcr) 在炎热的状态下 和(d)控制由步骤(b)测量的张力超过足以防止横向位移但小于产生热扣的临界张力(σcr)的张力(σmin)。 产生热带扣的临界张力(σcr)由以下公式计算:σcr = KxtAx(W-FL)BxθhcxE,其中t是金属条的厚度(mm),W是金属的宽度 条(mm),FL是平辊部分的长度,θh是热状态下的辊锥度(rad),E是金属带的弹性模量(kgf / mm2),K,A,B ,C是常数。 获得足以防止横向位移的张力(σmin)作为满足以下等式的张力(sigma)的最小值:DELTA D <(1W))/ 2和DELTA D = g(t,W,mu,LS ,E,θh,sigma,Ra,Ra'),其中DELTA D是横向位移量,l是辊筒长度,μ是金属带和辊之间的摩擦系数,LS是线速度,σ 是金属带的张力,Ra是金属带的表面粗糙度,Ra'是辊的表面粗糙度。
    • 77. 发明授权
    • Microgravity suspension system for simulating a weightless environment
    • 微重力悬挂系统,用于模拟无重量的环境
    • US5379657A
    • 1995-01-10
    • US902145
    • 1992-06-22
    • Timothy K. HasselmanRichard Quartararo
    • Timothy K. HasselmanRichard Quartararo
    • B64G7/00G01M99/00G05D15/01G01M19/00B66F11/00
    • G01M99/00B64G7/00G05D15/01
    • A method and system for supporting a test article or structure in a gravity environment for the purpose of testing the article in a simulated weightless condition includes at least one support assembly attached to the article for suspending the article from an overhead support. The support assembly includes three cables each having an end attached to the article. The cables are capable of being actuated to cooperatively maintain a constant resultant vertical force on the test article which is equal to the weight of the article. The system includes a controller which is capable of adjusting the force in each cable to continuously maintain the constant resultant force on the article as it moves from position to position. The controller can calculate the new position of the test article as it moves from position to position. The controller is able to calculate each new position, calculate the forces necessary to maintain the constant resultant force on the test article, and actuate the cables to develop the required cable forces needed to offset the weight of the test article as the test article moves from position to position. The system can also use a plurality of such support assemblies to handle large size test structures.
    • 用于在重力环境中支撑测试物品或结构的方法和系统,用于以模拟的无重量状态测试物品,包括至少一个支撑组件,其附接到物品上,用于将物品悬置在架空支架上。 支撑组件包括各自具有连接到物品的端部的三根电缆。 电缆能够被致动以协同地在测试制品上保持恒定的结果垂直力,其等于制品的重量。 该系统包括一个控制器,该控制器能够调节每个电缆中的力,以便当物品从位置移动到位置时,持续保持物品上的合力。 当测试物品从位置移动到位置时,控制器可以计算测试物品的新位置。 控制器能够计算每个新位置,计算维持测试物品上恒定合力所需的力,并且启动电缆以开发所需的电缆力,以便在测试物品移动时抵消测试物品的重量 位置到位 该系统还可以使用多个这种支撑组件来处理大尺寸的测试结构。
    • 79. 发明授权
    • Motor control circuit for a simulated weight stack
    • 用于模拟重量堆叠的电机控制电路
    • US5117170A
    • 1992-05-26
    • US511830
    • 1990-04-20
    • Martin A. KeaneWilliam H. Englehardt
    • Martin A. KeaneWilliam H. Englehardt
    • A63B21/005A63B24/00G05D15/01
    • G05D15/01A63B21/0058A63B2220/13Y10S482/90
    • A control for a DC motor coupled to a user interface to provide a counterforce which simulates a weight stack in an exercise machine. The control includes a position transducer coupled to the motor to provide a signal proportional to the displacement of the user interface. In one embodiment a circuit is provided to generate a control signal which follows the displacement signal when it is less than a maximum torque signal, the control voltage following maximum torque signal when it is less than the displacement signal. In a second embodiment a microprocessor control unit is responsive to the displacement signal to provide a control signal for the motor which starts increasing from a first value when the user interface is displaced an initial amount and which continues gradually increasing to a maximum value as the user interface is moved through a given displacement from the initial displacement. The control signal is used to soft start the motor such that the counterforce provided by the motor simulates a weight stack supported by a spring over small displacements of the user interface.
    • 用于连接到用户界面的DC马达的控制,以提供模拟运动机器中的重量堆叠的反作用力。 控制器包括耦合到电机的位置传感器以提供与用户接口的位移成比例的信号。 在一个实施例中,提供一个电路来产生一个控制信号,当它小于一个最大转矩信号时跟随该位移信号的控制信号,该最小转矩信号是小于该位移信号时的最大转矩信号之后的控制电压。 在第二实施例中,微处理器控制单元响应于位移信号以提供用于马达的控制信号,该控制信号在用户接口移位初始量时开始从第一值增加,并且随着使用者继续逐渐增加到最大值 界面从初始位移移动到给定的位移。 控制信号用于软启动电动机,使得由电动机提供的反作用力在由用户界面的小位移模拟由弹簧支撑的重量堆叠。
    • 80. 发明授权
    • Tensile test controller
    • 拉力试验控制器
    • US4802367A
    • 1989-02-07
    • US147070
    • 1988-01-25
    • Niel R. PetersenDavid G. Chasco
    • Niel R. PetersenDavid G. Chasco
    • G01N3/08G05D15/01G01N3/00
    • G05D15/01G01N3/08
    • A tensile test controller has both load and stroke control circuits that are coupled together to permit tensile testing a specimen while controlling the load on the specimen, and when the specimen yields, for safely and smoothly switching to stroke control to complete the test and break the specimen. The controller has circuits which provide control over the velocity of the actuator as the specimen yields, and to prevent the specimen from being placed into compression, and also to sense the plastic specimen deformation a desired amount after it has yielded, but before the stroke control function is activated. Simplified supervisory gates are used to insure that the appropriate signal is controlling the test.
    • 拉伸试验控制器具有负载和行程控制电路,它们耦合在一起,以允许对样品进行拉伸试验,同时控制样品上的载荷,并且当样品产生时,为了安全和平稳地切换到行程控制以完成测试并打破 标本。 该控制器具有电路,其可以在试样产生时提供对致动器的速度的控制,并且防止试样被压缩,并且还可以在其产生之后但在行程控制之前感测塑料试样变形所需的量 功能被激活。 简化的监控门用于确保适当的信号控制测试。