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    • 2. 发明申请
    • RELAY END-OF-SERVICE-LIFE FORECASTING DEVICE
    • 继电器终止服务寿命预测设备
    • US20110241692A1
    • 2011-10-06
    • US13047977
    • 2011-03-15
    • Daisuke AkitaYuuichi Kumazawa
    • Daisuke AkitaYuuichi Kumazawa
    • G01R31/327
    • H01H47/002G01R31/3278H01H3/001H01H11/0062H01H2071/044
    • Forecasting the end of the service life of a relay more accurately due to the effects of the load conditions and the environmental conditions can occur through diagnosing the end of service life of the relay based on the time, until the point in time that the actual opening or closing of the relay is detected, from the point in time of the application of the power to the relay or the point in time of the end of application of power to the relay coil by the controlling portion. Forecasting the end of the service life of the relay based on time, increases accuracy because time is a value that is not affected by the external environment. Additionally, because the end of the service life is forecasted based on the actual opening/closing of the relay, not only is it possible to detect immediately a fault in the relay, but it is also possible to eliminate the effects due to individual differences.
    • 由于负载条件和环境条件的影响,更准确地预测继电器使用寿命的终点,可以通过根据时间来诊断继电器的使用寿命,直到实际开启的时间点 从施加电力到继电器的时间点或通过控制部分向继电器线圈施加电力结束的时间点检测到继电器的闭合。 基于时间预测继电器的使用寿命,提高精度,因为时间是不受外部环境影响的值。 另外,由于基于继电器的实际开/关来预测使用寿命的结束,不仅可以立即检测继电器中的故障,还可以消除由于个体差异引起的影响。
    • 4. 发明申请
    • ELECTROMAGNETIC FLOWMETER
    • 电磁流量计
    • US20110056307A1
    • 2011-03-10
    • US12877266
    • 2010-09-08
    • Tomoshige YAMAMOTODaisuke AkitaYoshio YamazakiKenji Yao
    • Tomoshige YAMAMOTODaisuke AkitaYoshio YamazakiKenji Yao
    • G01F1/58
    • G01F1/588G01F1/58G01F1/60
    • An electromagnetic flowmeter includes a measuring tube, electrodes, an exciting coil for applying, to a fluid, a time-changing magnetic field asymmetrical with respect to a plane PLN, a signal conversion unit which extracts a ∂A/∂t component, irrelevant to a fluid flow velocity, from a resultant electromotive force of an electromotive force based on the ∂A/∂t component and an electromotive force based on a v×B component originating from the flow velocity of the fluid, a flow rate output unit which removes a variation factor for a span as a coefficient applied to a magnitude V of a flow velocity of the v×B component in the resultant electromotive force, based on the extracted ∂A/∂t component, and calculates a flow rate of the fluid from a result obtained by removing the variation factor, and signal lines inclined with respect to a direction of the magnetic field in parallel with the plane PLN.
    • 电磁流量计包括测量管,电极,用于向流体施加相对于平面PLN不对称的时变磁场的激励线圈,提取与ΛA/∂t分量不相关的∂A/∂t分量的信号转换单元 来自基于∂A/∂t分量的电动势的合成电动势的流体流动速度和源自流体的流速的基于av×B分量的电动势,流量输出单元,其移除 基于所提取的∂A/∂t分量,跨度的变化系数作为施加到所得到的电动势中的v×B分量的流速的幅度V的系数,并且计算来自 通过去除变化因子获得的结果,以及相对于与平面PLN平行的磁场方向倾斜的信号线。
    • 5. 发明授权
    • Electromagnetic flowmeter
    • 电磁流量计
    • US08136412B2
    • 2012-03-20
    • US12877266
    • 2010-09-08
    • Tomoshige YamamotoDaisuke AkitaYoshio YamazakiKenji Yao
    • Tomoshige YamamotoDaisuke AkitaYoshio YamazakiKenji Yao
    • G01F1/58
    • G01F1/588G01F1/58G01F1/60
    • An electromagnetic flowmeter includes a measuring tube, electrodes, an exciting coil for applying, to a fluid, a time-changing magnetic field asymmetrical with respect to a plane PLN, a signal conversion unit which extracts a ∂A/∂t component, irrelevant to a fluid flow velocity, from a resultant electromotive force of an electromotive force based on the ∂A/∂t component and an electromotive force based on a v×B component originating from the flow velocity of the fluid, a flow rate output unit which removes a variation factor for a span as a coefficient applied to a magnitude V of a flow velocity of the v×B component in the resultant electromotive force, based on the extracted ∂A/∂t component, and calculates a flow rate of the fluid from a result obtained by removing the variation factor, and signal lines inclined with respect to a direction of the magnetic field in parallel with the plane PLN.
    • 电磁流量计包括测量管,电极,用于向流体施加相对于平面PLN不对称的时变磁场的激励线圈,提取与ΛA/∂t分量不相关的∂A/∂t分量的信号转换单元 来自基于∂A/∂t分量的电动势的合成电动势的流体流动速度和源自流体的流速的基于av×B分量的电动势,流量输出单元,其移除 基于所提取的∂A/∂t分量,跨度的变化系数作为施加到所得到的电动势中的v×B分量的流速的幅度V的系数,并且计算来自 通过去除变化因子获得的结果,以及相对于与平面PLN平行的磁场方向倾斜的信号线。