公开(公告)号：US20120164029A1

公开(公告)日：2012-06-28

申请号：US13333752

申请日：2011-12-21

Applicant: Bogdan Serban ,  Mihai N. Mihalia ,  Cornel Cobianu ,  Viorel Georgel Dumitru ,  Octavian Buiu

Inventor： Bogdan Serban ,  Mihai N. Mihalia ,  Cornel Cobianu ,  Viorel Georgel Dumitru ,  Octavian Buiu

IPC: G01N27/00

CPC classification number: G01N29/022 ,  G01N29/036 ,  G01N33/004 ,  G01N2291/0255 ,  G01N2291/0257 ,  G01N2291/0427 ,  Y02A50/244

Abstract: Chemical sensors such as carbon dioxide sensors and methods for making such sensors are disclosed. An example carbon dioxide sensor may include a substrate, with a sensing beam supported by the substrate. The sensing beam may be configured to resonant. A sensing layer may be disposed on the sensing beam, wherein the sensing layer may include an amino group and is configured to sense carbon dioxide. In some instances, a reference beam may also be supported by the substrate, and may be configured to resonant. A reference layer may be disposed on the reference beam, wherein the reference layer may includes an amino group that has been poisoned so that it will be substantially non-sensitive to carbon dioxide.

Abstract translation: 公开了诸如二氧化碳传感器的化学传感器和用于制造这种传感器的方法。 示例二氧化碳传感器可以包括具有由衬底支撑的感测束的衬底。 感测光束可以被配置为共振。 感测层可以设置在感测光束上，其中感测层可以包括氨基并被配置为感测二氧化碳。 在一些情况下，参考光束也可以由衬底支撑，并且可以被配置为共振。 参考层可以设置在参考光束上，其中参考层可以包括已被中毒的氨基，使得其对二氧化碳基本上不敏感。

公开(公告)号：US20110241959A1

公开(公告)日：2011-10-06

申请号：US12755123

申请日：2010-04-06

Applicant: Ion Georgescu ,  Dana E. Guran ,  Ioan Pavelescu ,  Cornel Cobianu

Inventor： Ion Georgescu ,  Dana E. Guran ,  Ioan Pavelescu ,  Cornel Cobianu

IPC: H01Q1/36 ,  H01Q9/16 ,  H01B13/00

CPC classification number: H01Q11/08 ,  H01Q1/3233 ,  H01Q1/38

Abstract: An apparatus includes a sensor that receives a first electrical signal and provides a second electrical signal in response to the first electrical signal. The second electrical signal is based on at least one parameter monitored by the sensor. The apparatus also includes an antenna that converts first wireless signals into the first electrical signal and that converts the second electrical signal into second wireless signals. The antenna includes a substrate, conductive traces, and conductive interconnects. The conductive traces are formed on first and second surfaces of the substrate. The conductive interconnects couple the conductive traces, and the conductive interconnects and the conductive traces form at least one helical arm of the antenna. The conductive traces could be formed in various ways, such as by etching or direct printing. The conductive interconnects could also be formed in various ways, such as by filling vias in the substrate or direct printing.

Abstract translation: 一种装置包括传感器，其接收第一电信号并响应于第一电信号提供第二电信号。 第二电信号基于由传感器监测的至少一个参数。 该装置还包括天线，其将第一无线信号转换成第一电信号并将第二电信号转换成第二无线信号。 天线包括基板，导电迹线和导电互连。 导电迹线形成在基板的第一和第二表面上。 导电互连件耦合导电迹线，并且导电互连和导电迹线形成天线的至少一个螺旋臂。 导电迹线可以以各种方式形成，例如通过蚀刻或直接印刷。 导电互连也可以以各种方式形成，例如通过在基板中填充通孔或直接印刷。

公开(公告)号：US20110113856A1

公开(公告)日：2011-05-19

申请号：US12617893

申请日：2009-11-13

Applicant: Cornel Cobianu ,  Bogdan Serban

Inventor： Cornel Cobianu ,  Bogdan Serban

IPC: G01N29/02

CPC classification number: G01N29/022 ,  G01N29/036 ,  G01N29/30 ,  G01N29/4436 ,  G01N2291/0256 ,  G01N2291/0427 ,  H03H9/2447

Abstract: An all-differential resonant nanosensor apparatus for detecting multiple gasses and method of fabricating the same. The nanosensor apparatus generally includes a sensing loop, a reference loop, and a mixer. A sensing self assembled monolayer (SAM) or an ultrathin solid monolayer may be deposited on a sensing resonant beam associated with the sensing loop to detect the presence of the gas. A reference self assembled monolayer or an ultrathin solid film may be deposited on a reference resonant beam that possess similar visco-elastic properties (e.g., temperature, humidity and aging) as the sensing monolayer with no sensing properties. A differential reading electronic circuit may be interconnected with each resonant beam pair for signal processing. A drift-free frequency signal per each gas may be obtained by subtracting the frequency response from the sensing loop and the reference loop.

Abstract translation: 一种用于检测多种气体的全差分谐振纳米传感器装置及其制造方法。 纳米传感器装置通常包括感测回路，参考回路和混合器。 感测自组装单层（SAM）或超薄固体单层可以沉积在与感测环相关联的感测谐振束上，以检测气体的存在。 参考自组装单层或超薄固体膜可以沉积在参考谐振光束上，该参考谐振光束具有与感测单层相似的粘弹性（例如温度，湿度和老化），没有感测特性。 差分读取电子电路可以与用于信号处理的每个谐振束对互连。 可以通过从感测回路和参考回路中减去频率响应来获得每个气体的无漂移频率信号。

公开(公告)号：US07891252B2

公开(公告)日：2011-02-22

申请号：US12362741

申请日：2009-01-30

Applicant: Cornel Cobianu ,  Viorel Avramescu ,  Ion Georgescu ,  Stefan-Dan Costea

Inventor： Cornel Cobianu ,  Viorel Avramescu ,  Ion Georgescu ,  Stefan-Dan Costea

IPC: G01L7/00

CPC classification number: G01L9/0025 ,  B60C23/0408 ,  C03C27/00 ,  H01L41/1132 ,  H01L41/331 ,  Y10T29/42

Abstract: A method includes forming multiple trenches in a first wafer, forming a sensor structure on a first surface of a second wafer, and bonding the first wafer and the second wafer. The method also includes etching a second surface of the second wafer to form a sensor diaphragm in the second wafer. The method further includes removing a portion of the first wafer by cutting the first wafer in multiple areas of the first wafer associated with the trenches. A sensor includes a substrate and a surface acoustic wave (SAW) resonator on a first surface of the substrate. The sensor also includes a bonding pad electrically coupled to the SAW resonator and a notch formed in a second surface of the substrate. The sensor further includes a cover separated from the first surface of the substrate by a spacer. The SAW resonator is located between the cover and the substrate.

Abstract translation: 一种方法包括在第一晶片中形成多个沟槽，在第二晶片的第一表面上形成传感器结构，以及结合第一晶片和第二晶片。 该方法还包括蚀刻第二晶片的第二表面以在第二晶片中形成传感器膜片。 该方法还包括通过在与沟槽相关联的第一晶片的多个区域中切割第一晶片来去除第一晶片的一部分。 传感器包括在基板的第一表面上的基板和表面声波（SAW）谐振器。 传感器还包括电耦合到SAW谐振器的接合焊盘和形成在衬底的第二表面中的凹口。 传感器还包括通过间隔件与衬底的第一表面分离的盖。 SAW谐振器位于盖和基板之间。

公开(公告)号：US20100141087A1

公开(公告)日：2010-06-10

申请号：US12332064

申请日：2008-12-10

Applicant: Cazimir Bostan ,  Stefan Dan Costea ,  Viorel Avramescu ,  Cornel Cobianu

Inventor： Cazimir Bostan ,  Stefan Dan Costea ,  Viorel Avramescu ,  Cornel Cobianu

IPC: H01L41/047

CPC classification number: G01N29/245 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A SAW based sensor apparatus utilizing semi-synchronous SAW resonator having a single resonance at Bragg frequency with very high quality factor is disclosed. The semi-synchronous SAW resonator includes at least one inter-digital transducer, which generates and receives surface acoustic wave and a number of grating reflectors, which reflect the surface acoustic wave and generate a standing wave between the reflectors, The interdigital transducer and the grating reflectors can be fabricated on a substrate (e.g., quartz) by photolithographic process. The resonance condition is independent of transducer directivity and reflection coefficient per finger. Such a SAW based sensor apparatus having three semi-synchronous SAW resonators can be utilized for measuring pressure and temperature for a wireless tire-pressure monitoring system.

Abstract translation: 公开了一种利用具有非常高品质因数的布拉格频率具有单个谐振的半同步SAW谐振器的基于SAW的传感器装置。 半同步SAW谐振器包括至少一个数字间换能器，其产生和接收表面声波和多个反射表面声波并在反射器之间产生驻波的光栅反射器。叉指式换能器和光栅 可以通过光刻工艺在基板（例如石英）上制造反射器。 谐振条件与传感器方向性和每个手指的反射系数无关。 具有三个半同步SAW谐振器的这种基于SAW的传感器装置可用于测量无线轮胎压力监测系统的压力和温度。

公开(公告)号：US07514841B1

公开(公告)日：2009-04-07

申请号：US11975217

申请日：2007-10-18

Applicant: Cornel Cobianu ,  Ion Georgescu

Inventor： Cornel Cobianu ,  Ion Georgescu

IPC: H03H9/25

CPC classification number: G01L3/10 ,  Y10T29/42 ,  Y10T156/1062

Abstract: A glass cover wafer is bonded to a quartz SAW using glass frit technology, such that the glass wafer and glass frit formulation provides a thermal coefficient of expansion (TCE) of glass that fits the average TCE of the quartz in two perpendicular directions in a unique package. A dicing technology is used for chip separation. The sensor back side and the shaft are attached with a glass glue that transitions the TCE from the shaft to the quartz without interposing a large amount of the glue.

Abstract translation: 使用玻璃料技术将玻璃盖晶片结合到石英SAW上，使得玻璃晶片和玻璃料配方提供了玻璃的热膨胀系数（TCE），其适合于在两个垂直方向上的石英的平均TCE在独特的 包。 切片技术用于芯片分离。 传感器背面和轴附有玻璃胶，它将TCE从轴转到石英，而不会插入大量的胶水。

公开(公告)号：US20070164859A1

公开(公告)日：2007-07-19

申请号：US11331722

申请日：2006-01-13

Applicant: Cornel Cobianu ,  Ion Georgescu ,  James Cook ,  Viorel Avramescu

Inventor： Cornel Cobianu ,  Ion Georgescu ,  James Cook ,  Viorel Avramescu

IPC: G08B1/08 ,  G08B13/14

CPC classification number: G06K19/0723 ,  G06K19/0716

Abstract: A multifunctional multichip system can operate in a passive mode by using at least one antenna to receive electromagnetic energy and using that energy to perform system functions. The system includes a sensor, an impedance matching circuit and an RFID module. The sensor produces a sensor signal containing a measurement. The RFID can produce an identification signal containing identification information. Alternatively, the RFID chip can be used in an addressing mode wherein the system only produces a signal in response to an addressing signal containing addressing information. The addressing signal is received from the electromagnetic field. In either mode, the sensor signal is coupled from the antenna into the electromagnetic field from which a receiver can obtain it. The signal can contain the identification information as well as the measurement. A matching network minimizes the effects of impedance mismatches between the system elements.

Abstract translation: 多功能多芯片系统可以通过使用至少一个天线来接收电磁能并使用该能量来执行系统功能，以无源模式操作。 该系统包括传感器，阻抗匹配电路和RFID模块。 传感器产生包含测量值的传感器信号。 RFID可以产生包含识别信息的识别信号。 或者，RFID芯片可以以寻址模式使用，其中系统仅响应于包含寻址信息的寻址信号产生信号。 从电磁场接收寻址信号。 在任一模式中，传感器信号从天线耦合到电磁场中，接收器可从该电磁场获得它。 该信号可以包含识别信息以及测量。 匹配网络可以最大限度地减少系统元件之间阻抗失配的影响。

公开(公告)号：US09437933B2

公开(公告)日：2016-09-06

申请号：US12755123

申请日：2010-04-06

Applicant: Ion Georgescu ,  Dana E. Guran ,  Ioan Pavelescu ,  Cornel Cobianu

Inventor： Ion Georgescu ,  Dana E. Guran ,  Ioan Pavelescu ,  Cornel Cobianu

IPC: H01Q11/08 ,  H01Q1/38 ,  H01Q1/32

CPC classification number: H01Q11/08 ,  H01Q1/3233 ,  H01Q1/38

Abstract: An apparatus includes a sensor that receives a first electrical signal and provides a second electrical signal in response to the first electrical signal. The second electrical signal is based on at least one parameter monitored by the sensor. The apparatus also includes an antenna that converts first wireless signals into the first electrical signal and that converts the second electrical signal into second wireless signals. The antenna includes a substrate, conductive traces, and conductive interconnects. The conductive traces are formed on first and second surfaces of the substrate. The conductive interconnects couple the conductive traces, and the conductive interconnects and the conductive traces form at least one helical arm of the antenna. The conductive traces could be formed in various ways, such as by etching or direct printing. The conductive interconnects could also be formed in various ways, such as by filling vias in the substrate or direct printing.

Abstract translation: 一种装置包括传感器，其接收第一电信号并响应于第一电信号提供第二电信号。 第二电信号基于由传感器监测的至少一个参数。 该装置还包括天线，其将第一无线信号转换成第一电信号并将第二电信号转换成第二无线信号。 天线包括基板，导电迹线和导电互连。 导电迹线形成在基板的第一和第二表面上。 导电互连件耦合导电迹线，并且导电互连和导电迹线形成天线的至少一个螺旋臂。 导电迹线可以以各种方式形成，例如通过蚀刻或直接印刷。 导电互连也可以以各种方式形成，例如通过在基板中填充通孔或直接印刷。

公开(公告)号：US08479590B2

公开(公告)日：2013-07-09

申请号：US12949113

申请日：2010-11-18

Applicant: Cornel Cobianu ,  Frank Turnbull ,  Ion Georgescu ,  Viorel Avramescu

Inventor： Cornel Cobianu ,  Frank Turnbull ,  Ion Georgescu ,  Viorel Avramescu

IPC: G01N29/04 ,  G01N3/00

CPC classification number: G01N29/2462 ,  G01N29/223 ,  G01N2291/0232 ,  G01N2291/2634

Abstract: A system for detection of stress and deformation in a structural asset, for instance, one of reinforced concrete. An area on the asset may have a structure interface, such as a patch, attached to it with a fastening mechanism which may be a layer of an epoxy or other material, or be items such as screws, bolts, welds, or the like. One or more surface acoustic wave (SAW) strain sensors may be attached to the interface with an adhesive layer of epoxy or other material, or with mechanical items. Stress may be transmitted by the interface to the strain sensors. The sensors may be interrogated with a wire or wireless reader to obtain strain measurements. The measurements may indicate stress and deformations such as bulges and breaks in the asset. The measurements may also be a basis for determining location and extent of the stress and deformations.

Abstract translation: 一种用于检测结构资产中的应力和变形的系统，例如钢筋混凝土之一。 资产上的区域可以具有附接到其上的结构界面，例如贴片，其具有可以是环氧树脂或其它材料层的紧固机构，或者诸如螺钉，螺栓，焊接等的物品。 一个或多个表面声波（SAW）应变传感器可以与环氧树脂或其它材料或机械物品的粘合剂层附接到界面。 应力可以通过接口传递到应变传感器。 传感器可以用线或无线读取器询问以获得应变测量值。 测量结果可能表示压力和变形，如资产中的凸起和断裂。 测量也可能是确定应力和变形的位置和程度的基础。

公开(公告)号：US08479560B2

公开(公告)日：2013-07-09

申请号：US12895410

申请日：2010-09-30

Applicant: Cornel Cobianu ,  Bogdan Serban ,  Mihai N. Mihaila

Inventor： Cornel Cobianu ,  Bogdan Serban ,  Mihai N. Mihaila

IPC: G01N7/00

CPC classification number: G01N29/022 ,  G01N29/036 ,  G01N29/30 ,  G01N29/32 ,  G01N29/326 ,  G01N2291/014 ,  G01N2291/0215 ,  G01N2291/0256 ,  G01N2291/02845 ,  G01N2291/0427

Abstract: A differential resonant sensor apparatus and method for detecting relative humidity in an ambient air. The apparatus generally includes a sensing loop, a reference loop and a mixer. A hydrophilic sensing layer can be deposited on a sensing resonant beam and a corresponding hydrophobic reference layer can be deposited on a reference resonant beam for detecting water vapor concentration in the ambient air. The hydrophobic reference layer possesses similar visco-elastic properties as the hydrophilic sensing layer with no water absorption properties. A differential reading electronic circuit may be interconnected with each resonant beam for signal processing. The absorbed humidity with respect to the sensing resonant beam changes the mechanical resonance frequency, which can be detected as a change in the electric resonance frequency of the associated electronic circuit.

Abstract translation: 一种用于检测环境空气中的相对湿度的差分谐振传感器装置和方法。 该装置通常包括感测回路，参考回路和混合器。 亲水感测层可以沉积在感测谐振光束上，并且相应的疏水参考层可以沉积在参考谐振光束上，以检测环境空气中的水蒸汽浓度。 疏水性参考层具有与无吸水性的亲水感知层相似的粘弹性。 差分读取电子电路可以与每个谐振波束互连用于信号处理。 相对于感测谐振束的吸收湿度改变机械共振频率，其可以被检测为相关电子电路的电共振频率的变化。