公开(公告)号：US20160238650A1

公开(公告)日：2016-08-18

申请号：US15028148

申请日：2014-11-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Siarhei V. Savich

IPC: G01R31/02 ,  H05F3/02

CPC classification number: G01R31/026 ,  H05F3/02

Abstract: A grounding monitoring device is disclosed herein. In a described embodiment, the grounding monitoring device comprises a wrist strap comprising a first conductive portion for providing a first discharge path between a human arm and a ground; and a second conductive portion electrically isolated from the first conductive portion for providing a different second discharge path between the human arm and the ground. The grounding monitoring device further comprises a bipolar control voltage generator for applying a first voltage at a frequency f0 to the first conductive portion and an opposite second voltage at the frequency f0 to the second conductive portion; and an electrical circuit for: receiving a first total signal from the first conductive portion; receiving a second total signal from the second conductive portion; and forming an output signal based on a differential and common mode gains of the electrical circuit. The grounding monitoring device further comprises a comparator for comparing a portion of the output signal that corresponds to the frequency f0 with a first threshold value; and comparing a portion of at least one of the first total signal and the second total signal that corresponds to the frequency f0 with a second threshold value; wherein an alarm signal is activated depending on the comparisons made by the comparator.

Abstract translation: 本文公开了一种接地监视装置。 在所描述的实施例中，接地监测装置包括腕带，其包括用于在人臂和地面之间提供第一放电路径的第一导电部分; 以及与所述第一导电部分电隔离的第二导电部分，用于在所述人类手臂和所述地面之间提供不同的第二放电路径。 接地监视装置还包括双极性控制电压发生器，用于将频率f0的第一电压施加到第一导电部分，并将频率f0的相反的第二电压施加到第二导电部分; 以及电路，用于：从所述第一导电部分接收第一总信号; 从所述第二导电部分接收第二总信号; 以及基于所述电路的差分和共模增益形成输出信号。 接地监视装置还包括比较器，用于将对应于频率f0的输出信号的一部分与第一阈值进行比较; 以及将对应于频率f0的第一总信号和第二总信号中的至少一个的一部分与第二阈值进行比较; 其中根据比较器的比较来激活报警信号。

公开(公告)号：US20180246592A1

公开(公告)日：2018-08-30

申请号：US15745808

申请日：2016-07-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Siarhei V. Savich ,  Daniel J. Theis ,  Qin Fei Chen ,  Saujit Bandhu ,  Ravi Palaniswamy ,  Matthew S. Stay

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F2203/04103

Abstract: Electrically conductive films are provided. An electrically conductive film includes a dielectric substrate having a first region adapted to be used in a touch sensor and a second region, adjacent to the first region, not adapted to be used in the touch sensor. The electrically conductive film further includes electrically conductive spaced apart electrodes disposed on the substrate in the first region and adapted to form drive or receive electrodes in the touch sensor, and an electrically conductive pattern disposed on the substrate in the second region. Each electrode extends into the second region and is electrically and physically connected to the conductive first pattern, the conductive first pattern electrically connecting the plurality of the first electrodes. Also, assemblies and methods for removing static electric charge from electrically conductive patterns are provided.

公开(公告)号：US20140333331A1

公开(公告)日：2014-11-13

申请号：US14360705

申请日：2012-12-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Siarhei V. Savich

IPC: G01R19/00

CPC classification number: G01R19/0061 ,  G01R27/2605 ,  H01T23/00

Abstract: An air ionization monitoring device 200 and method is disclosed herein. In a described embodiment, the air ionization monitoring device 200 comprises an ion source 202 adapted to emit ions 204 and a capacitor 208 including a first conductor 210 arranged to be exposed to the ions 204 emitted by the ion source 202, and a second conductor 212 arranged to be shielded from the ions 204 emitted by the ion source 202. The monitoring device 200 further includes a commutation circuit 234 operable between a first configuration for charging the capacitor 208 to a first predefined voltage, and a second configuration for using the ions 204 emitted by the ion source 202 to discharge the capacitor 208 for a predefined time resulting in the capacitor 208 having a second voltage. The device 200 is configured to use the first and second voltages to determine an ionic current of the emitted ions.

Abstract translation: 本文公开了一种空气电离监测装置200及方法。 在所描述的实施例中，空气电离监测装置200包括适于发射离子204的离子源202和包括布置成暴露于由离子源202发射的离子204的第一导体210的电容器208，以及第二导体212 被布置成与由离子源202发射的离子204屏蔽。监测装置200还包括可在用于将电容器208充电到第一预定电压的第一配置和用于使用离子204的第二配置之间操作的换向电路234 由离子源202发射以将电容器208放电预定时间，导致电容器208具有第二电压。 器件200被配置为使用第一和第二电压来确定所发射的离子的离子电流。