公开(公告)号：US06237397B1

公开(公告)日：2001-05-29

申请号：US09413628

申请日：1999-10-06

申请人： Ruth Shinar ,  Guojun Liu ,  Marc D. Porter

发明人： Ruth Shinar ,  Guojun Liu ,  Marc D. Porter

IPC分类号： G01N2902

CPC分类号： G01N29/022 ,  G01N2291/014 ,  G01N2291/0256 ,  G01N2291/02863 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

摘要： An acoustic wave based-chemical sensor containing a crystal substrate and a coating of small particulate matter is disclosed. The small particulate matter can be graphite particles. Transducers are connected to the crystal substrate to generate an alternating potential across the crystal substrate, which in turn causes the crystal to resonate due to the converse piezoelectric effect. The coating absorbs the analyte, thus changing the mass of the sensor, and accordingly changing its resonant frequency. The transducers detect this change in resonant frequency to indicate that the analyte is present. The use of small particulate matter results in a coating having a large surface area which facilitates mass uptake of large amounts of VOCs, improved acoustic properties even with relatively thick coatings, and a high operational temperature range.

摘要翻译： 公开了一种包含晶体衬底和小颗粒物质涂层的基于声波的化学传感器。 小颗粒物可以是石墨颗粒。 传感器连接到晶体衬底以在晶体衬底之间产生交替电位，这又导致晶体由于相反的压电效应而谐振。 涂层吸收分析物，从而改变传感器的质量，从而改变其共振频率。 传感器检测谐振频率的这种变化，以表明分析物存在。 使用小的颗粒物质可形成具有大表面积的涂层，其有利于大量挥发性有机物的吸收，甚至在相对较厚的涂层和较高的操作温度范围内也改善了声学性能。

公开(公告)号：US06432362B1

公开(公告)日：2002-08-13

申请号：US09413401

申请日：1999-10-06

申请人： Ruth Shinar ,  Guojun Liu ,  Marc D. Porter

发明人： Ruth Shinar ,  Guojun Liu ,  Marc D. Porter

IPC分类号： G01N2700

CPC分类号： G01N29/022 ,  G01N2291/014 ,  G01N2291/0212 ,  G01N2291/0222 ,  G01N2291/0256 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

摘要： An acoustic wave based-chemical sensor utilizing a crystal substrate and a coating of at least two blended materials is disclosed. The blended materials comprise a combination of (a) a high glass transition temperature polymer or a material of high melting point, and (b) a low glass transition temperature polymer or a material having a low melting point. Transducers are connected to the crystal substrate to generate an alternating potential across the crystal substrate, which in turn causes the crystal to resonate due to the converse piezoelectric effect. The blended coating absorbs the analyte, thus changing the mass of the chemical sensor, and accordingly changing its resonant frequency. The transducers detect this change in resonant frequency to indicate that the analyte is present. The use of blended materials results in a thicker coating combining the preferred properties of the blend constituents, such as improved detection sensitivities, faster response times, less acoustic wave damping, and higher operational temperature ranges.

摘要翻译： 公开了一种使用晶体基底的基于声波的化学传感器和至少两种混合材料的涂层。 混合材料包括（a）高玻璃化转变温度聚合物或高熔点材料的组合，和（b）低玻璃化转变温度聚合物或具有低熔点的材料。 传感器连接到晶体衬底以在晶体衬底之间产生交替电位，这又导致晶体由于相反的压电效应而谐振。 混合涂层吸收分析物，从而改变化学传感器的质量，从而改变其共振频率。 传感器检测谐振频率的这种变化，以表明分析物存在。 混合材料的使用导致较厚的涂层结合混合物组分的优选性能，例如改进的检测灵敏度，更快的响应时间，更少的声波阻尼和更高的操作温度范围。

公开(公告)号：US5409739A

公开(公告)日：1995-04-25

申请号：US123328

申请日：1993-09-17

申请人： Guojun Liu

发明人： Guojun Liu

IPC分类号： B05D1/18 ,  B05D3/06

CPC分类号： B82Y30/00 ,  B05D1/185 ,  B82Y40/00

摘要： A process for producing an essentially monolayer coating of crosslinked polymer on a substrate, in which a block copolymer is introduced into a semi-solvent which solvates only one block of the copolymer, the resultant block copolymer semi-solution is contacted with a substrate, and the copolymer is then crosslinked.

摘要翻译： 在基材上制备交联聚合物基本单层涂层的方法，其中将嵌段共聚物引入仅溶剂化一个共聚物嵌段的半溶剂中，所得嵌段共聚物半溶液与基材接触， 共聚物然后交联。

公开(公告)号：US20170336433A1

公开(公告)日：2017-11-23

申请号：US15416700

申请日：2017-01-26

申请人： Kai Wang ,  Hu Chen ,  Guojun Liu

发明人： Kai Wang ,  Hu Chen ,  Guojun Liu

IPC分类号： G01P15/08

CPC分类号： G01P15/0802 ,  G01P2015/0865

摘要： An accelerometer is disclosed. The accelerometer includes an encapsulation structure provided with an accommodation space; a MEMS chip for detecting acceleration signal accommodated in the accommodation space; an ASIC chip received in the accommodation space. The ASIC chip includes a signal processing module connected to MEMS chip for processing the acceleration signal detected by the MEMS chip and outputting the processed acceleration signal. The accelerometer further includes a temperature detection module for detecting temperature signal and outputting the temperature signal.

公开(公告)号：US20160212549A1

公开(公告)日：2016-07-21

申请号：US14832590

申请日：2015-08-21

申请人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

发明人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

IPC分类号： H04R19/04

CPC分类号： H04R19/04 ,  H04R2201/003 ,  H04R2225/49

摘要： A micro-electro-mechanical system (MEMS) microphone device is provided in the present disclosure. The MEMS microphone device includes a first electromagnetic shielding cover defining a first accommodating space; a second electromagnetic shielding cover received in the first accommodating space and defining a second accommodating space; a MEMS chip and an application specific integrated circuit (ASIC) chip received in the second accommodating space. The first electromagnetic shielding cover and the second electromagnetic shielding cover cooperatively provide dual electromagnetic shielding protection for the MEMS chip and the ASIC chip.

摘要翻译： 在本公开中提供了微机电系统（MEMS）麦克风装置。 MEMS麦克风装置包括限定第一容纳空间的第一电磁屏蔽罩; 第二电磁屏蔽盖，容纳在所述第一容纳空间中并限定第二容纳空间; MEMS芯片和专用集成电路（ASIC）芯片接收在第二容纳空间中。 第一电磁屏蔽罩和第二电磁屏蔽罩协同提供MEMS芯片和ASIC芯片的双电磁屏蔽保护。

公开(公告)号：US20160212517A1

公开(公告)日：2016-07-21

申请号：US14832735

申请日：2015-08-21

申请人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

发明人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

IPC分类号： H04R1/08

CPC分类号： H04R1/04 ,  H01L2924/15151 ,  H01L2924/16152 ,  H04R2201/003

摘要： A micro-electro-mechanical system (MEMS) microphone device is provided in the present disclosure. The MEMS microphone device includes a circuit board, an electromagnetic shielding cover mounted on the circuit board to define an accommodating space, electronic components received in the accommodating space and electrically connected to the circuit board, and a metal shielding member disposed between the electronic components and the electromagnetic shielding cover. The electromagnetic shielding cover has an inner surface and an outer surface; and at least one of the inner surface and the outer surface is provided with a first metal shielding layer. At least one of the electromagnetic shielding cover and the metal shielding member is electrically connected to the circuit board.

摘要翻译： 在本公开中提供了微机电系统（MEMS）麦克风装置。 MEMS麦克风装置包括电路板，安装在电路板上以限定容纳空间的电磁屏蔽盖，容纳在容纳空间中并电连接到电路板的电子部件和设置在电子部件和 电磁屏蔽罩。 电磁屏蔽罩具有内表面和外表面; 并且内表面和外表面中的至少一个设置有第一金属屏蔽层。 电磁屏蔽罩和金属屏蔽构件中的至少一个电连接到电路板。

公开(公告)号：US20140146427A1

公开(公告)日：2014-05-29

申请号：US13885686

申请日：2011-10-31

申请人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

发明人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

IPC分类号： H02H3/38

CPC分类号： H02H3/38 ,  H02H1/0061 ,  H02H7/28 ,  H02J3/38 ,  H02J13/0051 ,  H02J2003/388 ,  Y02B90/263 ,  Y02E40/72 ,  Y02E60/723 ,  Y02E60/725 ,  Y02E60/783 ,  Y02P80/14 ,  Y04S10/12 ,  Y04S10/16 ,  Y04S10/20 ,  Y04S40/123

摘要： This present inversion relates to a detection system and detection method of distributed generation islanding based on power frequency carrier. The system includes a power frequency carrier signal generating device near the terminal power distribution substation, a power frequency carrier signal detection device in distributed power grid; the power frequency carrier signal generating device is connected to the substation bus through a signal coupling transformer; the power frequency carrier signal generating device is connected with signal coupling transformer though phase A, B C live wires and the N middle wire, that results in the signal can be send by anyone signal phase, any two phases parallel way or three phases parallel way. The power frequency carrier signal detection device is connected with the low voltage power network though phase A, B and C live wires and the N middle wire. The system of distributed generation islanding detection based on power frequency carrier has low cost of implementation advantage and the test methods to meet the requirements of relevant standards. The present invention provides an effective method for islanding signal detection of distributed generation and micro-grid signal, anti-islanding protection. There is very high technical and economic performance applying the distribution network under high permeability condition.

摘要翻译： 本反演涉及基于功率载波的分布式发电孤岛的检测系统和检测方法。 该系统包括终端配电站附近的功率载频信号发生装置，分布式电网中的工频载波信号检测装置， 电力载波信号发生装置通过信号耦合变压器连接到变电站总线; 电力载波信号发生装置通过A相，B C线和N线连接信号耦合变压器，使信号可以由任何信号相，任意两相并联或三相并联发送。 工频载波信号检测装置通过A，B，C线和N线连接低压电网。 基于电力载波的分布式孤岛检测系统具有较低的实施成本优势和符合相关标准要求的测试方法。 本发明提供了分散式发电和微电网信号孤岛信号检测的有效方法，防孤岛保护。 在高渗透条件下应用配送网络具有非常高的技术和经济性能。

公开(公告)号：US20130216068A1

公开(公告)日：2013-08-22

申请号：US13771138

申请日：2013-02-20

申请人： Guojun Liu

发明人： Guojun Liu

IPC分类号： H04R1/08

CPC分类号： H04R19/005 ,  B81B3/0027 ,  B81B7/0032 ,  B81B2201/0257 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/15151 ,  H01L2924/16152 ,  H04R1/02 ,  H04R1/04 ,  H04R1/083 ,  H04R19/04 ,  H01L2924/00014

摘要： A silicon based capacitive microphone includes a printed circuit board, a shell mounted on the printed circuit board and forming a receiving space together with the printed board, a chamber support located on top of the printed circuit board and received in the receiving space, a transducer unit and a controlling chip respectively mounted on the chamber support, wherein the chamber support forms a first chamber together with the printed board, the chamber support includes an opening, the transducer unit is provided with a second chamber and covers the opening, the second chamber communicates with the first chamber via the opening.

摘要翻译： 基于硅的电容式麦克风包括印刷电路板，安装在印刷电路板上的壳体以及与印刷电路板一起形成容纳空间，位于印刷电路板顶部并容纳在接收空间中的腔室支架，换能器 单元和分别安装在所述室支撑件上的控制芯片，其中所述室支撑件与所述印刷板一起形成第一室，所述室支撑件包括开口，所述换能器单元设置有第二室并且覆盖所述开口，所述第二室 通过开口与第一室连通。

公开(公告)号：US20120193769A1

公开(公告)日：2012-08-02

申请号：US13113287

申请日：2011-05-23

申请人： Guojun Liu ,  Uma Srinivasan ,  Shivkumar Chiruvolu

发明人： Guojun Liu ,  Uma Srinivasan ,  Shivkumar Chiruvolu

IPC分类号： H01L21/225 ,  H01B1/04 ,  H01L21/22 ,  H01L29/36 ,  B82Y99/00

CPC分类号： H01L21/2252 ,  B82Y30/00 ,  H01L21/2225 ,  H01L21/228 ,  H01L31/068 ,  H01L31/0682 ,  H01L31/1804 ,  Y02E10/52 ,  Y02E10/547 ,  Y02P70/521

摘要： The use of doped silicon nanoparticle inks and other liquid dopant sources can provide suitable dopant sources for driving dopant elements into a crystalline silicon substrate using a thermal process if a suitable cap is provided. Suitable caps include, for example, a capping slab, a cover that may or may not rest on the surface of the substrate and a cover layer. Desirable dopant profiled can be achieved. The doped nanoparticles can be delivered using a silicon ink. The residual silicon ink can be removed after the dopant drive-in or at least partially densified into a silicon material that is incorporated into the product device. The silicon doping is suitable for the introduction of dopants into crystalline silicon for the formation of solar cells.

摘要翻译： 使用掺杂的硅纳米颗粒油墨和其它液体掺杂剂源可以提供合适的掺杂剂源，以便如果提供合适的盖，则使用热处理将掺杂剂元素驱动到晶体硅衬底中。 合适的帽包括例如盖板，可以或可以不搁置在基材表​​面上的盖和覆盖层。 可以实现期望的掺杂剂。 可以使用硅油墨递送掺杂的纳米颗粒。 在掺杂剂驱入或至少部分致密化成掺入产品装置的硅材料之后，可以除去残留的硅油墨。 硅掺杂适用于将掺杂剂引入结晶硅以形成太阳能电池。

公开(公告)号：US20110318905A1

公开(公告)日：2011-12-29

申请号：US13070286

申请日：2011-03-23

申请人： Shivkumar Chiruvolu ,  Igor Altman ,  Bernard M. Frey ,  Weidong Li ,  Guojun Liu ,  Robert B. Lynch ,  Gina Elizabeth Pengra-Leung ,  Uma Srinivasan

发明人： Shivkumar Chiruvolu ,  Igor Altman ,  Bernard M. Frey ,  Weidong Li ,  Guojun Liu ,  Robert B. Lynch ,  Gina Elizabeth Pengra-Leung ,  Uma Srinivasan

IPC分类号： H01L21/20 ,  C09D11/00 ,  B01J19/08 ,  H01B1/22 ,  B82Y30/00

CPC分类号： C09D11/38 ,  B01D21/262 ,  B01J19/121 ,  B01J2219/0869 ,  B01J2219/0871 ,  B01J2219/0875 ,  B82Y30/00 ,  C01B33/02 ,  C08K3/08 ,  C08K3/36 ,  C08K9/02 ,  C09D5/24 ,  C09D7/67 ,  C09D7/68 ,  C09D7/80 ,  C09D11/037 ,  C09D11/101 ,  C09D11/322 ,  C09D11/36 ,  C09D11/52 ,  H01L21/02532 ,  H01L21/02573 ,  H01L21/02579 ,  H01L21/02581 ,  H01L21/02601 ,  H01L21/02628 ,  H01L23/4828 ,  H01L23/53276 ,  H01L31/00 ,  H01L31/02363 ,  H01L31/03682 ,  H01L31/03762 ,  H01L31/0747 ,  H01L31/182 ,  H01L31/1864 ,  H01L2924/0002 ,  Y02E10/52 ,  Y02E10/546 ,  Y02E10/548 ,  Y02P70/521 ,  H01L2924/00

摘要： Laser pyrolysis reactor designs and corresponding reactant inlet nozzles are described to provide desirable particle quenching that is particularly suitable for the synthesis of elemental silicon particles. In particular, the nozzles can have a design to encourage nucleation and quenching with inert gas based on a significant flow of inert gas surrounding the reactant precursor flow and with a large inert entrainment flow effectively surrounding the reactant precursor and quench gas flows. Improved silicon nanoparticle inks are described that has silicon nanoparticles without any surface modification with organic compounds. The silicon ink properties can be engineered for particular printing applications, such as inkjet printing, gravure printing or screen printing. Appropriate processing methods are described to provide flexibility for ink designs without surface modifying the silicon nanoparticles.

摘要翻译： 描述了激光热解反应器设计和相应的反应物入口喷嘴，以提供特别适合于合成元素硅颗粒的理想的颗粒淬火。 特别地，喷嘴可以具有鼓励成形和淬火的设计，其基于围绕反应物前体流的大量惰性气体，并且具有有效围绕反应物前体和骤冷气体流的大的惰性夹带流动的惰性气体。 描述了改进的硅纳米颗粒油墨，其具有不含有机化合物的任何表面改性的硅纳米颗粒。 硅油墨性能可以针对特定的印刷应用进行设计，例如喷墨印刷，凹版印刷或丝网印刷。 描述适当的处理方法以提供油墨设计的灵活性，而无需对硅纳米颗粒进行表面改性。