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1. 发明授权

US06600323B2 Sensor for non-contacting electrostatic detector 失效
标题翻译：用于非接触式静电探测器的传感器
公开(公告)号：US06600323B2
公开(公告)日：2003-07-29
申请号：US09939352
申请日：2001-08-24
申请人： Jerzy Kieres , Toshio Uehara , Bruce T. Williams
发明人： Jerzy Kieres , Toshio Uehara , Bruce T. Williams
IPC分类号： G01R528
CPC分类号： G01R29/12
摘要： A sensor for an electrostatic detector including an elongated vibratory element supported at a mechanical node at one end in the manner of a cantilever beam, a sensitive electrode on the vibratory element near the other end and adapted to be disposed toward an electrical charge, field or potential being measured, and a driver transducer on the vibratory element for vibrating the element in a direction to vary the capacitive coupling between the electrode and the electrical charge, field or potential being measured. An amplifier and the sensitive electrode are combined in an assembly on the vibratory element thereby providing a low impedance amplifier output which in turn allows a narrow spacing around the vibratory element to prevent entry of contaminants. The vibratory element can be provided with a structure which allows measurements with various spatial resolution characteristics.
摘要翻译：一种用于静电检测器的传感器，包括以悬臂梁的方式在一端的机械节点处支撑的细长的振动元件，在另一端附近的振动元件上的敏感电极，并且适于朝向电荷，场或以及振动元件上的驱动器传感器，用于使元件在一个方向上振动以改变电极与被测量的电荷，场或电位之间的电容耦合。放大器和敏感电极组合在振动元件上的组件中，从而提供低阻抗放大器输出，其又允许围绕振动元件的窄间隔以防止污染物进入。振动元件可以设置有允许以各种空间分辨率特性进行测量的结构。

2. 发明授权

US06188226B1 Electric potential sensor 失效
标题翻译：电位传感器
公开(公告)号：US06188226B1
公开(公告)日：2001-02-13
申请号：US09357492
申请日：1999-07-20
申请人： Chitaka Ochiai
发明人： Chitaka Ochiai
IPC分类号： G01R528
CPC分类号： G01R1/067 , Y10T307/858
摘要： An electric potential sensor, having: a power source including a first output terminal having a first electric potential, a second output terminal having a second electric potential; a first and a second potential dividing elements connected in series between the first output terminal and the second output terminal; a ground node connected to a mutual connection node of the first potential dividing element and the second potential dividing element; a first resistance element connected between the ground node and an output node; a second resistance element connected between the output node and a detection node; a transistor connected between the first output terminal and the detection node; a pickup device for controlling a base current or a gate voltage of said transistor such that an electric potential of the detection node is equal to an electric potential of a measuring object; and a third resistance element connected between said detection node and the second output terminal.
摘要翻译：一种电位传感器，具有：电源，包括具有第一电位的第一输出端子，具有第二电位的第二输出端子; 在第一输出端子和第二输出端子之间串联连接的第一和第二电位分压元件; 连接到第一电位分割元件和第二电位分割元件的相互连接节点的接地节点; 连接在接地节点和输出节点之间的第一电阻元件; 连接在输出节点和检测节点之间的第二电阻元件; 连接在第一输出端子和检测节点之间的晶体管; 用于控制所述晶体管的基极电流或栅极电压的拾取装置，使得检测节点的电位等于测量对象的电位; 以及连接在所述检测节点和所述第二输出端子之间的第三电阻元件。

3. 发明授权

US06573725B2 Sensor for non-contacting electrostatic detector 失效
标题翻译：用于非接触式静电探测器的传感器
公开(公告)号：US06573725B2
公开(公告)日：2003-06-03
申请号：US09939359
申请日：2001-08-24
申请人： Jerzy Kieres , Nenad Nenadic , Thomas B. Jones
发明人： Jerzy Kieres , Nenad Nenadic , Thomas B. Jones
IPC分类号： G01R528
CPC分类号： G01R29/12
摘要： A sensor for an electrostatic detector including an elongated vibratory element supported at a mechanical node at one end in the manner of a cantilever beam, a sensitive electrode on the vibratory element near the other end and adapted to be disposed toward an electrical charge, field or potential being measured, and a driver transducer on the vibratory element for vibrating the element in a direction to vary the capacitive coupling between the electrode and the electrical charge, field or potential being measured. The driver transducer is at a location along the beam and is operated at a vibratory frequency such that a virtual mechanical node appears along the beam. This, in turn, reduces vibration at the mechanical attachment node so that the degree of stiffness of the mechanical node does not affect the operating frequency and/or the displacement at the free end of the cantilever.
摘要翻译：一种用于静电检测器的传感器，包括以悬臂梁的方式在一端的机械节点处支撑的细长的振动元件，在另一端附近的振动元件上的敏感电极，并且适于朝向电荷，场或以及振动元件上的驱动器传感器，用于使元件在一个方向上振动以改变电极与被测量的电荷，场或电位之间的电容耦合。驱动器换能器位于沿着梁的位置，并且以振动频率操作，使得沿着梁出现虚拟机械节点。这又降低了机械附接节点处的振动，使得机械节点的刚度不会影响悬臂自由端的工作频率和/或位移。

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