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    • 5. 发明公开
    • Einstellbare Messspiralfeder
    • Einstellbare Messspiralfeder。
    • EP0045814A1
    • 1982-02-17
    • EP80104607.9
    • 1980-08-05
    • Közuti Közlekedési Tudományos Kutato Intézet
    • Böhm, NándorBöhm, JánosBöhm, Robert
    • F16F1/10G01D11/18
    • G01D11/18F02B1/04F16F1/10G01R17/08
    • Spiralfeder 1 insbesondere logarithmischer Federkennlinie zum Einbau in Meßinstrumente (Leistungsmesser, Widerstandsmesser, Tachometer, Kraftstoffverbrauchsmesser und dgl.) von Fahrzeugen und Arbeitsmaschinen. Das die Spiralfeder 1 bildende Federband weist einen über seine Länge hin kontinuierlich zunehmenden oder abnehmenden Bandquerschnitt auf und/oder der Windungszwischenraum zwischen den Federwindungen nimmt zwischen den äußeren Federwindungen und den inneren Federwindungen kontinuierlich zu oder ab. Dadurch kann die Federkennlinie der Spiralfeder entsprechend einer logarithmischen Funktion geformt werden, so daß mit Hilfe von logarithmischen Skalen oder Skalenscheiben in Meßinstrumenten die Meßwerte als mathematisches Produkt oder Quotient abgelesen werden können. Mit ihrer äußeren Federwindung liegt die Spiralfeder 1 über eine einstellbare Länge ihres Bandabschnittes hin an einem einstellbaren Haltegehäuse an, so daß die wirksame Länge der Spiralfeder 1 und damit ein gewünschter Bereich ihrer Federkennlinie eingestellt werden können.
    • 1.一种可调测量螺旋弹簧(1),用于测量诸如用于机动车辆和执行作业的机器的测功机,欧姆表,速度计和燃料消耗计量仪器,包括至少沿着螺旋弹簧的外转弯延伸的支撑壳体 以及调节装置,其与弹簧带的端部配合,借助该调节装置可以调节弹簧带的操作长度,其特征在于,支撑壳体设置有保持线圈(7)接合 在可旋转地调节的测量螺旋弹簧(1)的匝之间,弹簧带通过其邻近弹簧带的外端部分的部分而带动,并且弹簧带具有连续增加的横截面 或从外弹簧转到内弹簧圈。
    • 6. 发明授权
    • Microelectro-mechanical high resolution current sensing apparatus
    • 微电机高分辨率电流检测装置
    • US06504356B2
    • 2003-01-07
    • US09955493
    • 2001-09-18
    • Jun Jason YaoGerard J. SullivanRobert J. Anderson
    • Jun Jason YaoGerard J. SullivanRobert J. Anderson
    • G01R3302
    • G01R17/08G01R15/185G01R19/20G01R33/0286
    • A current sensor includes a deflectable member disposed in a magnetic field. Nulling or compensating members may be mechanically coupled to the deflectable member. Feedback or readout devices coupled to the structure provide signals indicative of deflection of the deflectable member under the influence of applied current and the magnetic field. Nulling current applied to the nulling members tends to oppose deflection of the deflectable member. The nulling current may be modulated to drive the feedback signal to a desired level and is used as a basis for calculating the current to be measured. The current may be measured directly upon calibration of feedback devices coupled to the deflectable member or to the nulling members. Arrays of sensors may be coupled to common busses for applying measured and nulling currents to sensors of the arrays and for detecting feedback signals.
    • 电流传感器包括设置在磁场中的可偏转构件。 空转或补偿构件可以机械地联接到可偏转构件。 耦合到该结构的反馈或读出装置提供指示在施加的电流和磁场的影响下可偏转构件的偏转的信号。 施加到归零构件的空转电流倾向于抵抗可偏转构件的偏转。 可以调制归零电流以将反馈信号驱动到期望的电平,并将其用作计算待测电流的基础。 可以在校准耦合到可偏转构件或归零构件的反馈装置时直接测量电流。 传感器的阵列可以耦合到共同的总线,以将测量和归零电流施加到阵列的传感器并用于检测反馈信号。
    • 7. 发明授权
    • Method of measuring strain
    • 测量应变的方法
    • US6148675A
    • 2000-11-21
    • US209745
    • 1998-12-11
    • Haruki Okano
    • Haruki Okano
    • G01B7/16G01G3/142G01L1/22G01R17/08
    • G01L1/2268G01B7/18G01G3/142G01R17/08
    • Strain of an object is measured by a bridge having, in one arm thereof, a strain gage for producing a resistance change depending on the strain developed in the object, and having resistors in the respective remaining three arms thereof. The resistors have respective resistances independent of the strain developed in the object. A pair of power corners are disposed at one pair of diagonally opposite joints, and a pair of signal corners are disposed at another pair of diagonally opposite joints of the strain gage. Strain is measured by detecting an output voltage between the signal corners of the bridge as an initial unbalanced output voltage e.sub.0 while no strain is being detecting by the strain gage, applying a power supply voltage between the power corners of the bridge, and detecting an output voltage e between the signal corners to detect strain of the object. Strain developed in the object is measured based on a value .epsilon..sub.a determined using the detected output voltage e and the initial unbalanced output voltage e.sub.0 according to a predetermined relationship between variables e and e.sub.0, a voltage value V of the power supply voltage applied between the power corners of the bridge, a gage factor K of the strain gage, and resistances R.sub.3 and R.sub.4 of the resistors in arms of the bridge which are positioned opposite to the arm holding the strain gage and adjacent to the arm holding the strain gage, respectively.
    • 物体的应变通过桥的测量,该桥在其一个臂中具有根据在物体中产生的应变产生电阻变化的应变计,并且在其剩余的三个臂中具有电阻器。 电阻器具有独立于物体中产生的应变的各自的电阻。 一对功率角设置在一对对角相对的接头处,并且一对信号拐角设置在应变计的另一对对角相对的接头处。 应变是通过检测桥的信号角之间的输出电压作为初始不平衡输出电压e0而测量的,而应变计没有检测到应变,在桥的功率角之间施加电源电压,并检测输出 信号角之间的电压e以检测物体的应变。 基于根据变量e和e0之间的预定关系,使用检测到的输出电压e和初始不平衡输出电压e0确定的值εa来测量在对象中产生的应变,施加在对象之间的电源电压的电压值V 桥的功率角,应变计的量规因子K以及桥臂的电阻器的电阻R3和R4分别与保持应变计的臂相对定位,并且分别与保持应变计的臂相邻 。
    • 9. 发明授权
    • Electro-pneumatic transducer
    • 电动气动传感器
    • US3861411A
    • 1975-01-21
    • US43251174
    • 1974-01-11
    • SYBRON CORP
    • MITCHELL WAYNE DMETZGER PAUL T
    • G01R17/08G05D16/00F16B5/00
    • G01R17/08Y10T74/18752Y10T137/2278
    • A lever beam is mounted for pivotal movement, with electromagnetic forces applied to one end, and pneumatic forces applied to the other. A nozzle applies pressurized air against a planar surface of a baffle plate and provides a pneumatic signal that is a function of the distance between the nozzle opening and the planar surface. An alignment mechanism adjusts the planar surface parallel to the nozzle opening to provide a close fit cut-off. A span adjustment controls the position of the nozzle. A damper is coupled to the lever beam at the fulcrum and assumes the pivot point of the lever mechanism. An zero mechanism is provided for balancing the lever under a zero signal input condition.
    • 安装杠杆梁用于枢转运动,电磁力施加到一端,气动力施加到另一端。 喷嘴将压缩空气施加到挡板的平面表面,并提供作为喷嘴开口和平面之间的距离的函数的气动信号。 对准机构调节平行于喷嘴开口的平面以提供紧密配合切断。 量程调整控制喷嘴的位置。 阻尼器在支点处联接到杠杆梁并且呈现杠杆机构的枢转点。 提供零机构用于在零信号输入条件下平衡杠杆。