INDIRECT MEASUREMENT OF DILUENTS IN A MULTI-COMPONENT NATURAL GAS
    41.
    发明申请
    INDIRECT MEASUREMENT OF DILUENTS IN A MULTI-COMPONENT NATURAL GAS 审中-公开
    在多组分天然气中间接测量稀释液

    公开(公告)号:WO2005022122A3

    公开(公告)日:2006-08-10

    申请号:PCT/US2004009108

    申请日:2004-03-26

    Abstract: A method of indirectly measuring the diluent (nitrogen and carbon dioxide) concentrations in a natural gas mixture. The molecular weight of the gas is modeled as a function of the speed of sound in the gas, the diluent concentrations in the gas, and constant values, resulting in a model equation. A set of reference gas mixtures with known molecular weights and diluent concentrations is used to calculate the constant values. For the gas in question, if the speed of sound in the gas is measured at three states, the three resulting expressions of molecular weight can be solved for the nitrogen and carbon dioxide concentrations in the gas mixture.

    Abstract translation: 间接测量天然气混合物中稀释剂(氮和二氧化碳)浓度的方法。 气体的分子量被模拟为气体中的声速,气体中的稀释剂浓度和常数值的函数,导致模型方程式。 使用一组具有已知分子量和稀释剂浓度的参考气体混合物来计算常数值。 对于所讨论的气体,如果在三种状态下测量气体中的声速,则可以解决三种分子量的表达式,以解决气体混合物中的氮和二氧化碳浓度。

    MULTIPLE MODES ACOUSTIC WAVE SENSOR
    42.
    发明申请
    MULTIPLE MODES ACOUSTIC WAVE SENSOR 审中-公开
    多模式声波传感器

    公开(公告)号:WO2005106452A2

    公开(公告)日:2005-11-10

    申请号:PCT/US2005/011375

    申请日:2005-04-01

    Inventor: LIU, James, Z.

    Abstract: A multiple mode sensing system is described, which can be configured from an acoustic wave sensor that includes a plurality of sensing components for monitoring a chemical species. The plurality of sensing components can be disposed within a cavity formed from a plurality of walls of said acoustic wave sensor, such that each sensing component is coated with a differing sensing film. The multiple modes sensing system also includes a plurality of oscillators associated with sensing components, wherein each sensing component is generally located in a feedback loop with identical oscillators to thereby provide a multiple modes acoustic wave sensor that provides multiple modes frequency outputs for the detection and desorption of a chemical species.

    Abstract translation: 描述了一种多模式感测系统,其可以由包括用于监测化学物种的多个感测部件的声波传感器配置。 多个感测部件可以设置在由所述声波传感器的多个壁形成的空腔内,使得每个感测部件涂覆有不同的感测膜。 多模式感测系统还包括与感测部件相关联的多个振荡器,其中每个感测部件通常位于具有相同振荡器的反馈回路中,从而提供多模式声波传感器,其提供用于检测和解吸的多个模式频率输出 的化学物种。

    DEVICE FOR ANALYZING THE TYPE OF GAS BURNED IN A GAS-FIRED APPARATUS
    43.
    发明申请
    DEVICE FOR ANALYZING THE TYPE OF GAS BURNED IN A GAS-FIRED APPARATUS 审中-公开
    用于分析在燃气装置中燃烧的气体的装置的装置

    公开(公告)号:WO2005059540A1

    公开(公告)日:2005-06-30

    申请号:PCT/EP2004/013887

    申请日:2004-12-07

    CPC classification number: G01N29/222 G01N9/24 G01N29/14 G01N2291/0215

    Abstract: A device for analyzing the type of gas burned in a gas-fired apparatus, comprising a body provided with at least one opening for introducing gas and for the subsequent flow of gas into sound emission means, which are adapted to emit a frequency signal that is inversely proportional to the density of the gas, the signal being transduced and sent to a control unit that is adapted to identify the signal and match it to a type of gas.

    Abstract translation: 一种用于分析在燃气装置中燃烧的气体的类型的装置,包括:主体,其设置有用于引入气体的至少一个开口和随后的气体流入声发射装置,所述开口适于发射频率信号, 与气体的密度成反比,该信号被传导并发送到控制单元,该控制单元适于识别信号并将其与气体类型相匹配。

    PIEZOAKUSTISCHER RESONATOR UND VERWENDUNG DES PIEZOAKUSTISCHEN RESONATORS
    44.
    发明申请
    PIEZOAKUSTISCHER RESONATOR UND VERWENDUNG DES PIEZOAKUSTISCHEN RESONATORS 审中-公开
    压电声谐振器和压电声波谐振器的使用

    公开(公告)号:WO2005034348A1

    公开(公告)日:2005-04-14

    申请号:PCT/EP2004/051909

    申请日:2004-08-26

    Abstract: Die Erfindung betrifft einen piezoakustischen Resonator (2) mit einer auf einem Substrat (3) angeordneten unteren schichtförmigen Elektrode (6), einer oberen schichtförmigen Elektrode (5) und einer zwischen den Elektroden (5, 6) angeordneten piezoelektrischen Schicht (4). Der Resonator (2) ist dadurch gekennzeichnet, dass die untere Elektrode (6) eine Schichtdicke aufweist, die aus dem Bereich von einem Zehntel bis neun Zehntel einer Wellenlänge (λ) der Schwingung des piezoakustischen Resonators (2) ausgewählt ist. Vorzugsweise entspricht die Schichtdicke der unteren Elektrode (6) im Wesentlichen einem Viertel (λ/4) oder drei Viertel (λ/4) der Wellenlänge der Schwingung des Resonators (2). Durch diese Massnahme resultiert ein Resonator mit sehr hoher Massensensitivität. Neben dem Resonator wird auch ein Verfahren zur Detektion mindestens einer Substanz eines Fluids unter Verwendung des piezoakustischen Resonators (2) angegeben.

    Abstract translation: 本发明涉及(2)具有一基板(3),布置在下部层形电极上的压电声波谐振器(6),上部层形电极(5)和电极之间(5,6),其设置压电体层(4)。 谐振器(2)的特征在于,所述下部电极(6)具有从所述范围内选择十分之一到压电声波谐振器(2)的振动的一个波长(拉姆达)的十分之九的层厚度被选择。 优选地,下部电极(6)的层厚度基本上对应于四分之一(拉姆达/ 4)或四分之三(拉姆达/ 4)谐振器的振动的波长(2)。 通过这一措施,具有非常高的质量灵敏度结果的谐振器。 除了谐振器中,被指定用于检测使用所述压电声波谐振器(2)的流体中的至少一种物质的方法。

    ULTRASCHALL-LAUFZEIT-MENGENMESSUNG ZUM ERMITTELN DER KONZENTRATION VON PARTIKELN IN EINEM STRÖMENDEN FLUID
    45.
    发明申请
    ULTRASCHALL-LAUFZEIT-MENGENMESSUNG ZUM ERMITTELN DER KONZENTRATION VON PARTIKELN IN EINEM STRÖMENDEN FLUID 审中-公开
    超声到期日金额MEASURE用于确定颗粒的浓度IN A中流动的流体

    公开(公告)号:WO2003102512A1

    公开(公告)日:2003-12-11

    申请号:PCT/DE2003/001783

    申请日:2003-05-31

    Inventor: BETZ, Oliver

    Abstract: Vorgeschlagen wird ein Verfahren zur Ultraschall-Laufzeit-Mengenmessung eines strömenden Fluids, bei dem die Laufzeit eines Ultraschall-Signals (70) entgegen und mit der Strömung (R) gemessen und daraus die Strömungsgeschwindigkeit des Fluids ermittelt wird. Bei dem vorgeschlagenen Verfahren werden zusätzlich die Reflexionen des Ultraschall-Signals (70) an Partikeln im Fluid erfasst, um daraus die Konzentration der Partikel zu ermitteln. Es wird außerdem eine Vorrichtung zur Durchführung eines solchen Verfahrens vorgeschlagen, die ausgestattet ist mit wenigstens zwei Ultraschall-Wandlern (32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b), welche umschaltbar sind vom Sendezustand in einen Empfangszustand, wobei die Ultraschall-Wandler im Sendezustand Ultraschallsignale (70) aussenden können, die von Ultraschall-Wandlern im Empfangszustand empfangen werden können, nachdem sie den zu untersuchenden Fluidstrom (20) durchquert haben. Wenigstens einer der Ultraschall-Wandler (32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b) der Vorrichtung ist so schnell von Senden auf Empfang umschaltbar, daß er die Reflexionen (E1, E2, E3) seines ausgesandten Signals (70) empfangen kann. Es können auch zusätzliche Ultraschall-Wandler (32c) vorgesehen sein, die so angeordnet sind, dass sie die Reflexionen (E1, E2, E3) des von den Ultraschall-Wandlern im Sendezustand ausgesandten Signales (70) empfangen können.

    Abstract translation: 被确定为流动的流体,其中,超声波信号(70)和相对于流(R)的运行时间建议测量的流体的流量的超声波时差流量测量的方法。 在所提出的方法,此外,被检测流体中的颗粒的超声信号(70)的反射,以便由此确定颗粒的浓度。 同时,还提出了用于执行这种方法的装置,其配备有至少两个超声波换能器(32A,32B,34A,34B,36A,36B,38A,38B),它们是从发送模式到接收模式切换,所述 在发射状态下的超声波信号(70)发送的超声波换能器可从超声换能器在接收状态来接收他们已经通过所述流体流传递至待检查(20)之后。 至少超声换能器中的一个(32A,32B,34A,34B,36A,36B,38A,38B)的设备的作为迅速从传送到接收切换,即它(它的发射信号70的反射(E1,E2,E3) 可以接收)。 它也可能包含其他超声换能器(32℃)可以被提供,其被布置为使得它们的反射(E1,E2,E3)可以接收由在发送状态信号(70)的超声换能器发射的光。

    ACOUSTIC GAS SENSOR
    46.
    发明申请
    ACOUSTIC GAS SENSOR 审中-公开
    气声传感器

    公开(公告)号:WO2003058231A1

    公开(公告)日:2003-07-17

    申请号:PCT/SE2002/002125

    申请日:2002-11-22

    Inventor: HÖK, Bertil

    Abstract: The invention concerns an acoustic sensor for determining the composition or concentration relations of a gas mixture within at least one measuring cell (1), including means for transport (6, 7) of said gas mixture to and from said measuring cell (1). The measuring cell is defined by at least two essentially planar and parallel plates (2, 3) at least one of which is conditioned to be subjected to mechanical vibrations by means of electrical activation. The thereby appearing interaction from acoustic waves within the gas mixture is electrically readable. Activation and readout is performed e g by electrostatic, piezoelectric, piezoresistive or electrothermal action. The readability concerns e g one in the frequency domain measurable extreme value, alternatively a phase or time difference, constituting a measure of the propagation velocity within the gas mixture, which is being the frequency controlling element of at least one oscillator circuit being built up from active and passive electronic components integrated into at least one silicon die (41). The wavelength of the acoustic waves is determined by at least one spacer (4) defining the distance between said plates (2, 3). Means (10, 11) for temperature measurement and electrical heating of said plates (2, 3) also prevail in a preferred embodiment, along with filter (51) for separation, adsorption or trapping of certain in said mixture included compounds. The geometric design of the measuring cell (1) and the plates (2, 3) is defined by a multistage process of selective or anisotropic pattern deposition and etching of single crystalline silicon or other semiconductor material.

    Abstract translation: 本发明涉及用于确定至少一个测量池(1)内的气体混合物的组成或浓度关系的声学传感器,包括用于将所述气体混合物输送到所述测量单元(1)的装置(6,7)。 测量池由至少两个基本上平面和平行的板(2,3)限定,其中至少一个被调节为通过电活动进行机械振动。 由此出现的气体混合物内声波的相互作用是电可读的。 激活和读出是通过静电,压电,压阻或电热作用进行的。 可读性涉及例如频域可测量极值中的一个,或者相位或时间差,构成气体混合物内的传播速度的量度,其是至少一个振荡器电路的频率控制元件,其由有源 以及集成到至少一个硅管芯(41)中的无源电子部件。 声波的波长由限定所述板(2,3)之间的距离的至少一个间隔物(4)确定。 在优选实施例中,用于温度测量和所述板(2,3)的电加热的装置(10,11)也与用于分离,吸附或捕获所述含所述混合物的化合物的过滤器(51)一起占优势。 测量单元(1)和板(2,3)的几何设计由单晶硅或其他半导体材料的选择性或各向异性图案沉积和蚀刻的多级工艺限定。

    ULTRASONIC FLUID QUALITY SENSOR SYSTEM
    47.
    发明申请
    ULTRASONIC FLUID QUALITY SENSOR SYSTEM 审中-公开
    超声波质量传感器系统

    公开(公告)号:WO00046583A1

    公开(公告)日:2000-08-10

    申请号:PCT/US2000/002887

    申请日:2000-02-02

    Abstract: A system for determining the composition of a multiple component fluid as gas or liquid and for determining linear flow comprising a pulse transmitter (10) and pulse receiver (20) used in at least one sing-around circuit that determines the velocity of an audio signal (12) in the multiple component fluid, which velocity is correlatable to a known data base for the multiple component fluid, and where the electronics of a trigger signal circuit (30), amplifier (32), pulser (60), rectifier (34), square wave converter, keep alive circuit (50), alternative pulse width adjuster (40) and gate circuit or digital filter (38) is arranged to determine a signal delay between pulse transmitting and receiving. A method for determining flow in a controlled dynamic fluid supply system uses two of such inventive circuits with independent transmitters and receivers disposed about the fluid of measurement interest, one pair of which transmitter and receiver is set at an angle non-perpendicular to the direction of fluid flow.

    Abstract translation: 一种用于确定作为气体或液体的多组分流体的组成并用于确定线性流的系统,其包括用于确定音频信号的速度的至少一个单声道电路中的脉冲发射器(10)和脉冲接收器(20) (12)在多分量流体中,该速度可与多分量流体的已知数据库相关,并且其中触发信号电路(30),放大器(32),脉冲发生器(60),整流器(34) ),方波转换器,保持电路(50),替代脉冲宽度调节器(40)和门电路或数字滤波器(38),以确定脉冲发射和接收之间的信号延迟。 用于确定受控动态流体供应系统中的流量的方法使用两个这样的本发明的电路,其中独立的发射器和接收器围绕测量感兴趣的流体设置,一对发射器和接收器被设置成非垂直于 流体流动。

    CHEMICAL SENSOR ARRAY
    48.
    发明申请
    CHEMICAL SENSOR ARRAY 审中-公开
    化学传感器阵列

    公开(公告)号:WO00016091A1

    公开(公告)日:2000-03-23

    申请号:PCT/US1999/019890

    申请日:1999-09-03

    Abstract: A device for detecting chemical substances includes a plurality of sensors arranged in an array. The sensors are connected to respective oscillator circuits which drive the sensors, and the oscillator circuits are coupled to a power multiplexer which provides the circuits with power according to a timing pattern such that not all of the oscillator circuits are activated at any one time. Preferably, only one oscillator circuit is activated at any given time. This multiplexing arrangement saves power and substantially eliminates cross talk between the oscillator circuits. The oscillator circuits are preferably application specific integrated circuits (ASICs), and the sensors are preferably surface acoustic wave (SAW) devices. In use, the SAW sensors are exposed to a gas, such as air, containing the chemical substance to be detected. Signals from the SAW sensors are analyzed to identify the chemical substance.

    Abstract translation: 用于检测化学物质的装置包括排列成阵列的多个传感器。 传感器连接到驱动传感器的相应振荡器电路,并且振荡器电路耦合到功率多路复用器,该功率复用器根据定时模式向电路提供功率,使得并非所有的振荡器电路都在任何一个时间被激活。 优选地,在任何给定时间仅激活一个振荡器电路。 这种复用布置节省功率并且基本上消除了振荡器电路之间的串扰。 振荡器电路优选地是专用集成电路(ASIC),并且传感器优选地是表面声波(SAW)器件。 在使用中,SAW传感器暴露于含有要检测的化学物质的气体,例如空气。 分析来自SAW传感器的信号以识别化学物质。

    LEAK DETECTION DEVICE FOR FLUID VESSEL APPARATUS
    49.
    发明申请
    LEAK DETECTION DEVICE FOR FLUID VESSEL APPARATUS 审中-公开
    流体容器装置泄漏检测装置

    公开(公告)号:WO99060540A1

    公开(公告)日:1999-11-25

    申请号:PCT/US1999/011388

    申请日:1999-05-20

    Abstract: A leak detection device (300) securable in detection proximity to a fluid vessel (not shown). The leak detection device includes a sensor element (330) such as a piezoelectric crystal (332) placed within a housing upper portion (312) and a monitoring assembly (340) placed within a housing lower portion (314). The sensor element has a monitorable characteristic, and this monitorable characteristic changes in exposure to the fluid contained inside the fluid vessel. The monitoring assembly is responsive to the monitorable characteristic and produces a visual and audible alarm output (350, 352) in response to such change in the monitorable characteristic. The fluid vessel and leak detection device together may form an assembly (not shown) including a shroud or cover over the leak detection device and a leak-susceptible portion of the fluid vessel, to provide an isolated microenvironment in which the leak detection device is operated.

    Abstract translation: 一种可靠地检测流体容器(未示出)的泄漏检测装置(300)。 泄漏检测装置包括放置在壳体上部(312)内的压电晶体(332)和放置在壳体下部(314)内的监视组件(340)的传感器元件(330)。 传感器元件具有可监视的特性,并且该可监视特性随着暴露在流体容器内部的流体而变化。 监视组件响应于可监控特性,并且响应于可监视特性的这种变化而产生视觉和听觉报警输出(350,352)。 流体容器和泄漏检测装置在一起可以形成包括泄漏检测装置上的护罩或盖子以及流体容器的易泄露部分的组件(未示出),以提供泄漏检测装置被操作的隔离的微环境 。

    IMPROVED PIEZOELECTRIC SENSORS AND QUARTZ CRYSTAL MONITORS
    50.
    发明申请
    IMPROVED PIEZOELECTRIC SENSORS AND QUARTZ CRYSTAL MONITORS 审中-公开
    改进的压电传感器和石英晶体监测器

    公开(公告)号:WO2018049101A1

    公开(公告)日:2018-03-15

    申请号:PCT/US2017/050595

    申请日:2017-09-08

    Abstract: Surface modifications and improvements to piezoelectric-based sensors, such as QCMs and other piezoelectric devices, that significantly increase the sensitivity and the specificity (selectivity). These modifications can comprise mechanical and chemical changes to the surfaces of the sensors, either individually or together. For example, nanosize structures may be provided on the surface to improve sensitivity. Additionally, chemical coatings may be tethered to the surfaces, walls, or crystal to provide targeted sensitivity. Additionally, porous, layered and multiple senor arrays may be formed to enhance sensitivity and selectivity.

    Abstract translation: 对基于压电的传感器(如QCM和其他压电设备)进行表面修改和改进,显着提高灵敏度和特异性(选择性)。 这些修改可以包括对传感器表面的机械和化学变化,可以单独或一起进行。 例如,可以在表面上提供纳米尺寸结构以提高灵敏度。 另外,化学涂层可以被束缚到表面,壁或晶体以提供目标灵敏度。 此外,可以形成多孔,分层和多个传感器阵列以提高灵敏度和选择性。

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