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    • 4. 发明授权
    • Electromagnetic connector for an industrial control system
    • 用于工业控制系统的电磁连接器
    • US08971072B2
    • 2015-03-03
    • US13341143
    • 2011-12-30
    • James CalvinAlbert Rooyakkers
    • James CalvinAlbert Rooyakkers
    • H02J17/00H02J5/00
    • H01F38/14H01F3/14H01F5/003H01F5/04H01F7/20H01F27/06H01F2007/062H02J5/005H04B3/548H04B2203/5454H04B2203/5483
    • An electromagnetic connector is disclosed that is configured to form a first magnetic circuit portion comprising a first core member and a first coil disposed of the first core member. The electromagnetic connector is configured to mate with a second electromagnetic connector, where the second electromagnetic connector is configured to form a second magnetic circuit portion comprising a second core member and a second coil disposed of the second core member. The first core member and the second core member are configured to couple the first coil to the second coil with a magnetic circuit formed from the first magnetic circuit portion and the second magnetic circuit portion when the electromagnetic connector is mated with the second electromagnetic connector. The magnetic circuit is configured to induce a signal in the first coil when the second coil is energized.
    • 公开了一种电磁连接器,其被配置为形成第一磁路部分,该第一磁路部分包括第一芯部件和设置在第一芯部件上的第一线圈。 电磁连接器被配置为与第二电磁连接器配合,其中第二电磁连接器构造成形成第二磁路部分,该第二磁路部分包括第二芯部件和设置在第二芯部件上的第二线圈。 第一铁心构件和第二铁芯构件被配置为当电磁连接器与第二电磁连接器配合时,将第一线圈耦合到具有由第一磁路部分和第二磁路部分形成的磁路的第二线圈。 磁路被配置为当第二线圈通电时,在第一线圈中感应信号。
    • 8. 发明授权
    • Self-validating output module
    • 自验证输出模块
    • US06507283B1
    • 2003-01-14
    • US09314519
    • 1999-05-19
    • James Calvin
    • James Calvin
    • G08B2100
    • G05B9/02H03K17/18
    • A self-validating output module in a control system includes a current detector and an operating component having at least two states. When the operating component is in the first state, current is directed away from a current detector and toward a load. When it is in its second state, current is directed toward the current detector and away from the load. The presence or absence of current on the current detector is thus a status signal indicative of whether or not current is being supplied to the load. This status signal is then made available to a controller.
    • 控制系统中的自验证输出模块包括电流检测器和具有至少两个状态的操作部件。 当操作部件处于第一状态时,电流被引导离开电流检测器并朝向负载。 当它处于第二状态时,电流指向电流检测器并远离负载。 因此,电流检测器上的电流的存在或不存在是指示电流是否被提供给负载的状态信号。 然后,该状态信号可用于控制器。
    • 9. 发明授权
    • Three-wire RTD interface
    • 三线RTD接口
    • US06244744B1
    • 2001-06-12
    • US09314817
    • 1999-05-19
    • James Calvin
    • James Calvin
    • G01K700
    • G01K7/20
    • In a three-wire RTD interface, a known current is connected to a first lead during a first measurement interval. In this configuration, current is directed to the first lead and into an RTD. This results in a first signal indicative of a first voltage drop resulting from the voltage drops across the RTD and the lead resistance of the first lead. During a second measurement interval, current is directed through a second lead having a lead resistance substantially identical to the lead resistance of the first lead. This results in a second signal indicative of the voltage drop resulting from the second lead. The first signal, the second signal, and the known current are then combined to eliminate the effect of the lead resistance and to determine the resistance of the RTD.
    • 在三线RTD接口中,已知电流在第一测量间隔期间连接到第一引线。 在该配置中,电流被引导到第一引线并进入RTD。 这导致指示由RTD上的电压降和第一引线的引线电阻引起的第一电压降的第一信号。 在第二测量间隔期间,电流被引导通过具有与第一引线的引线电阻基本相同的引线电阻的第二引线。 这导致指示由第二引线产生的电压降的第二信号。 然后组合第一信号,第二信号和已知电流以消除引线电阻的影响并确定RTD的电阻。