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公开(公告)号：US06278379B1
公开(公告)日：2001-08-21
申请号：US09454748
申请日：1999-12-06
申请人： Mark G. Allen , Jennifer M. English
发明人： Mark G. Allen , Jennifer M. English
IPC分类号： G08B2100
CPC分类号： G01L9/0075 , B60C23/0408 , G01D5/48
摘要： Several sensors are provided for determining one of a number of physical roperties including pressure, temperature, chemical species, and other physical conditions. In general, the sensors feature a resonant circuit with an inductor coil which is electromagnetically coupled to a transmitting antenna. When an excitation signal is applied to the antenna, a current is induced in the sensor circuit. This current oscillates at the resonant frequency of the sensor circuit. The resonant frequency and bandwidth of the sensor circuit is determined using an impedance analyzer, a transmitting and receiving antenna system, or a chirp interrogation system. The resonant frequency may further be determined using a simple analog circuit with a transmitter. The sensors are constructed so that either the resonant frequency or bandwidth of the sensor circuit, or both, are made to depend upon the physical properties such as pressure, temperature, presence of a chemical species, or other condition of a specific environment. The physical properties are calculated from the resonant frequency and bandwidth determined.
摘要翻译： 提供了几个传感器用于确定包括压力，温度，化学物质和其他物理条件在内的许多物理性能中的一种。 通常，传感器具有电感线圈的谐振电路，其电磁耦合到发射天线。 当激励信号被施加到天线时，在传感器电路中感应出电流。 该电流以传感器电路的谐振频率振荡。 传感器电路的谐振频率和带宽由阻抗分析仪，发射和接收天线系统或啁啾询问系统确定。 可以使用具有发射机的简单模拟电路进一步确定谐振频率。 传感器被构造成使得传感器电路的谐振频率或带宽或两者都被制成取决于诸如压力，温度，化学物质的存在或特定环境的其他状况的物理性质。 物理性质由谐振频率和带宽确定。
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公开(公告)号：US6111520A
公开(公告)日：2000-08-29
申请号：US54011
申请日：1998-04-02
申请人： Mark G. Allen , Jennifer M. English
发明人： Mark G. Allen , Jennifer M. English
CPC分类号： G01L9/0073 , B60C23/0408 , G01D5/48
摘要： Several sensors are provided for determining one of a number of physical properties including pressure, temperature, and other physical conditions. In general, the sensors feature a resonant circuit with an inductor coil which is electromagnetically coupled to a transmitting antenna. When an excitation signal is applied to the antenna, a current is induced in the sensor circuit. This current oscillates at the resonant frequency of the sensor circuit. The resonant frequency and bandwidth of the sensor circuit is determined using an impedance analyzer, a transmitting and receiving antenna system, or a chirp interrogation system. The resonant frequency may further be determined using a simple analog circuit with a transmitter. The sensors are constructed so that either the resonant frequency or bandwidth of the sensor circuit, or both, are made to depend upon the physical properties such as pressure, temperature, presence of a chemical species, or other condition of a specific environment. The physical properties are calculated from the resonant frequency and bandwidth determined.
摘要翻译： 提供几个传感器用于确定包括压力，温度和其他物理条件在内的许多物理性质之一。 通常，传感器具有电感线圈的谐振电路，其电磁耦合到发射天线。 当激励信号被施加到天线时，在传感器电路中感应出电流。 该电流以传感器电路的谐振频率振荡。 传感器电路的谐振频率和带宽由阻抗分析仪，发射和接收天线系统或啁啾询问系统确定。 可以使用具有发射机的简单模拟电路进一步确定谐振频率。 传感器被构造成使得传感器电路的谐振频率或带宽或两者都被制成取决于诸如压力，温度，化学物质的存在或特定环境的其他状况的物理性质。 物理性质由谐振频率和带宽确定。
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3.发明授权公开(公告)号：US07265476B1
公开(公告)日：2007-09-04
申请号：US10975121
申请日：2004-10-26
IPC分类号： H02N1/00
CPC分类号： H02N1/004
摘要： A microscopic translation device for a microelectromechanical system includes a pair of linear stator assemblies disposed in spaced relation to define an elongate channel. Each assembly is formed by a plurality of stators arranged in a row along the channel. A shuttle member is disposed between the stator assemblies for translating movement along the channel. The shuttle member includes a plurality of rotors extending outwardly from opposite sides. The shuttle is grounded through the stator assemblies and includes a mounting area for an object to be translated. Electrical lines are individually connected to alternate stators of a plurality of groups of the stators. A current supply sequentially supplies current through the electrical lines to the alternate stators so as to effect charging of the stators in a predetermined sequence. This produces a tangential capacitive force that causes translation of the shuttle.
摘要翻译： 用于微机电系统的微观平移装置包括一对以间隔设置的直线定子组件，以限定细长通道。 每个组件由沿通道布置成一排的多个定子形成。 梭子件设置在定子组件之间，用于沿着通道平移运动。 穿梭构件包括从相对侧向外延伸的多个转子。 梭子通过定子组件接地，并且包括用于待翻译的物体的安装区域。 电线单独连接到多组定子的交替定子。 电流供应顺序地通过电线将电流提供给替代定子，以便以预定的顺序实现定子的充电。 这产生切向电容力，导致梭子的翻转。
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公开(公告)号：US07206470B2
公开(公告)日：2007-04-17
申请号：US10973068
申请日：2004-10-25
CPC分类号： G02B6/126
摘要： A planar lightwave circuit has a waveguide having a bend and plurality of multiple trenches with parallel front and back interfaces. The trench and waveguide refractive indexes are different such that a refractive interface is defined between the waveguide and the trench. The trench may include a material of higher refractive index than the waveguide, such as silicon, or alternatively a material having a lower refractive index than the waveguide, such as an air void. The trench is disposed on the waveguide bend such that the front and back planar interfaces have an angle of incidence to a direction of the lightwave propagation from the waveguide. The invention also includes beamsplitters that include trenches that reflect a portion of a lightwave in a first direction and a portion of a lightwave in a second direction.
摘要翻译： 平面光波电路具有具有弯曲的波导和多个具有平行的前后接口的多个沟槽。 沟槽和波导折射率是不同的，使得在波导和沟槽之间限定折射界面。 沟槽可以包括比诸如硅的波导更高的折射率的材料，或者替代地具有比波导低折射率的材料，例如空气空隙。 沟槽设置在波导弯管上，使得前和后平面界面具有与波导从光波传播的方向的入射角。 本发明还包括分束器，其包括在第一方向上反射光波的一部分并且沿第二方向反射光波的一部分的沟槽。
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