Sensor head, gas sensor and sensor unit
    61.
    发明申请
    Sensor head, gas sensor and sensor unit 审中-公开
    传感器头,气体传感器和传感器单元

    公开(公告)号:US20070041870A1

    公开(公告)日:2007-02-22

    申请号:US10550737

    申请日:2004-03-26

    IPC分类号: G01N31/22

    摘要: The present invention includes a three-dimensional base body (40) having a curved surface allowing definition of a circular orbital band (B), an electroacoustic transducer (21) arranged on the orbital band (B) of the three-dimensional base body (40) and configured to excite surface acoustic wave to perform multiple roundtrips along the orbital band (B), and a sensitive film (25) formed on at least a part of the orbital band (B) of the three-dimensional base body (40) and configured to react with a specific gas molecule. The surface acoustic wave experienced the multiple roundtrips along the orbital band (B) is then converted into a high frequency electric signal again by an interdigital transducer (21). The resulting high frequency electric signal is transferred to a detection/output unit (24) via a switching unit (23) and then detected by the detection/output unit (24).

    摘要翻译: 本发明包括具有允许定义圆形轨道带(B)的弯曲表面的三维基体(40),布置在三维基体的轨道带(B)上的电声换能器(21) 40),并且被构造成激励表面声波以沿着轨道带(B)进行多次往返行程,以及形成在三维基体(40)的轨道带(B)的至少一部分上的敏感膜(25) )并配置为与特定气体分子反应。 经过轨道频带(B)的多次往返行驶的表面声波再由叉指式换能器(21)再次转换为高频电信号。 所产生的高频电信号经由切换单元(23)传送到检测/输出单元(24),然后由检测/输出单元(24)检测。

    Optoacoustic gas sensor
    62.
    发明申请
    Optoacoustic gas sensor 有权
    光声气体传感器

    公开(公告)号:US20060254340A1

    公开(公告)日:2006-11-16

    申请号:US11130316

    申请日:2005-05-16

    IPC分类号: G01N7/00 G01N29/02

    摘要: An optoacoustic sensor for detecting one or more target gases includes a body featuring halves containing measurement cells. Each measurement cell is in communication with a light source and a microphone as well as the ambient atmosphere. Evaluation and control electronics are in communication with the light sources and the microphones sequentially illuminate the first and second light sources so that a measurement signal due to optoacoustic pressure variations from a target gas is generated by the microphone of the illuminated or gas active cell and a compensation signal is generated by the microphone of the non-illuminated or gas inactive cell. The compensation signal is subtracted from the measurement signal by the evaluation and control electronics to provide a sensor output signal.

    摘要翻译: 用于检测一个或多个目标气体的光声传感器包括具有包含测量单元的半部的主体。 每个测量单元与光源和麦克风以及周围环境通信。 评估和控制电子设备与光源通信,并且麦克风顺序地照亮第一和第二光源,使得由于来自目标气体的光声压力变化引起的测量信号由照明或气体活性电池的麦克风产生,并且 补偿信号由非照明或气体不活动单元的麦克风产生。 通过评估和控制电子装置从测量信号中减去补偿信号,以提供传感器输出信号。

    Indirect measurement of diluents in a multi-component natural gas
    63.
    发明授权
    Indirect measurement of diluents in a multi-component natural gas 有权
    间接测量多组分天然气中的稀释剂

    公开(公告)号:US07010433B2

    公开(公告)日:2006-03-07

    申请号:US10809097

    申请日:2004-03-25

    IPC分类号: G01N31/00

    摘要: 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.

    摘要翻译: 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。

    Ultrasonic measurement of the running time and quantity for detecting the concentration of particles in a flowing fluid
    64.
    发明申请
    Ultrasonic measurement of the running time and quantity for detecting the concentration of particles in a flowing fluid 有权
    超声波测量流动流体中颗粒浓度的运行时间和数量

    公开(公告)号:US20060005611A1

    公开(公告)日:2006-01-12

    申请号:US10516030

    申请日:2003-05-31

    申请人: Oliver Betz

    发明人: Oliver Betz

    IPC分类号: G01N29/02 G01N29/18 G01F1/66

    摘要: A method for ultrasonic measurement of the running time and quantity of a flowing fluid is provided, in which the running time of an ultrasonic signal (70) is measured counter to and in a direction of the flow (5), wherefrom the flow rate of the fluid is determined. Reflections of the ultrasonic signal (70) from particles in the fluid are also detected in order to determine a concentration of particles. A device for carrying out the method includes two ultrasonic transducers which can be switched from a transmission mode to a reception mode. The ultrasonic transducers in the transmission mode transmit ultrasonic signals that are received by the ultrasonic transducers in the reception mode once the signal (70) has penetrated the fluid to be analyzed. At least one of the ultrasonic transducerscan be switched from the transmission mode to the reception mode so that it can receive reflections (E1, E2, E3) of its transmitted signal. Additional transducers can be provided that also receive the reflections.

    摘要翻译: 提供了一种用于超声波测量流动流体的运行时间和数量的方法,其中超声波信号(70)的运行时间是相对于流向(5)的流动方向测量的, 确定流体。 还检测来自流体中的颗粒的超声波信号(70)的反射以确定颗粒的浓度。 用于执行该方法的装置包括可从传输模式切换到接收模式的两个超声换能器。 一旦信号(70)已经穿透要分析的流体,传输模式中的超声换能器在接收模式下发射由超声波换能器接收的超声波信号。 超声波换能器中的至少一个可以从传输模式切换到接收模式,使得其可以接收其发射信号的反射(E 1,E 2,E 3)。 可以提供也可以接收反射的附加换能器。

    Inferential determination of various properties of a gas mixture
    66.
    发明申请
    Inferential determination of various properties of a gas mixture 有权
    气体混合物的各种性质的推测确定

    公开(公告)号:US20050143937A1

    公开(公告)日:2005-06-30

    申请号:US11006243

    申请日:2004-12-07

    IPC分类号: G01N29/024 G01N33/22 G01N9/36

    摘要: Methods for inferentially determining various properties of a gas mixture, when the speed of sound in the gas is known at an arbitrary temperature and pressure. The method can be applied to natural gas mixtures, where the known parameters are the sound speed, temperature, pressure, and concentrations of any dilute components of the gas. The method uses a set of reference gases and their calculated density and speed of sound values to estimate the density of the subject gas. Additional calculations can be made to estimate the molecular weight of the subject gas, which can then be used as the basis for heating value calculations. The method may also be applied to inferentially determine density and molecular weight for gas mixtures other than natural gases.

    摘要翻译: 当在任意温度和压力下已知气体中的声速时,用于确定气体混合物的各种特性的方法。 该方法可以应用于天然气混合物,其中已知参数是气体的任何稀释组分的声速,温度,压力和浓度。 该方法使用一组参考气体及其计算的声值的密度和速度来估计目标气体的密度。 可以进行额外的计算来估计目标气体的分子量,然后将其用作热值计算的基础。 该方法还可以用于确定天然气以外的气体混合物的密度和分子量。

    Device for determining thermophysical properties of a multi-component gas at arbitrary temperature and pressure
    67.
    发明授权
    Device for determining thermophysical properties of a multi-component gas at arbitrary temperature and pressure 有权
    用于确定任意温度和压力下多组分气体的热物理性质的装置

    公开(公告)号:US06850847B2

    公开(公告)日:2005-02-01

    申请号:US10770768

    申请日:2004-02-03

    IPC分类号: G01N29/024 G01N33/22 G01N9/00

    摘要: A computer product for determining thermodynamic properties of a natural gas hydrocarbon, when the speed of sound in the gas is known at an arbitrary temperature and pressure. Thus, the known parameters are the sound speed, temperature, pressure, and concentrations of any dilute components of the gas. The method uses a set of reference gases and their calculated density and speed of sound values to estimate the density of the subject gas. Additional calculations can be made to estimate the molecular weight of the subject gas, which can then be used as the basis for mass flow calculations, to determine the speed of sound at standard pressure and temperature, and to determine various thermophysical characteristics of the gas.

    摘要翻译: 一种用于测定天然气烃的热力学性质的计算机产品,当在任意的温度和压力下已知气体中的声速时。 因此,已知参数是气体的任何稀释组分的声速,温度,压力和浓度。 该方法使用一组参考气体及其计算的声值的密度和速度来估计目标气体的密度。 可以进行额外的计算,以估计目标气体的分子量,然后可以将其用作质量流量计算的基础,以确定标准压力和温度下的声速,并确定气体的各种热物理特性。

    Multiple sensing system and device
    68.
    发明申请
    Multiple sensing system and device 失效
    多传感系统和装置

    公开(公告)号:US20040181346A1

    公开(公告)日:2004-09-16

    申请号:US10799185

    申请日:2004-03-11

    IPC分类号: G06F019/00

    摘要: The present invention provides a distributed sensing system in a networked environment for identifying an analyte, including a first sensor array connected to the network comprising sensors capable of producing a first response in the presence of a chemical stimulus; a second sensor array connected to the network comprising sensors capable of producing a second response in the presence of a physical stimulus; and a computer comprising a resident algorithm. The algorithm indicates or selects the most relevant sensor in the network to identify the analyte. The sensors can be separated over large spatial areas, wherein the sensor arrays are networked. Suitable networks include a computer local area network, an intranet or the Internet.

    摘要翻译: 本发明提供了一种用于识别分析物的网络环境中的分布式感测系统,包括连接到网络的第一传感器阵列,其包括能够在存在化学刺激的情况下产生第一响应的传感器; 连接到网络的第二传感器阵列,包括能够在存在物理刺激的情况下产生第二响应的传感器; 以及包括驻留算法的计算机。 该算法指示或选择网络中最相关的传感器来识别分析物。 传感器可以在大的空间区域上分离,其中传感器阵列被联网。 合适的网络包括计算机局域网,内联网或因特网。

    Gas supply monitoring apparatus and method
    69.
    发明申请
    Gas supply monitoring apparatus and method 审中-公开
    供气监测装置及方法

    公开(公告)号:US20040149285A1

    公开(公告)日:2004-08-05

    申请号:US10760823

    申请日:2004-01-20

    发明人: Lars Wallen

    IPC分类号: A61M016/00 A62B007/00

    摘要: An apparatus for monitoring a gas supply connection to a mechanical breathing aid has an in-line housing containing a measurement chamber for receiving gas from the gas supply and a transceiver arrangement) operable to emit acoustic energy into and to detect emitted acoustic energy propagated through the measurement chamber. A comparator is operably connected to the transceiver arrangement to receive therefrom a signal dependent on an amplitude of detected energy and generates a control signal from a comparison of the received signal with a reference signal indicative of a target gas usable by a flow control valve, also located within the housing, to inhibit a gas flow through the breathing aid if a gas other than the target gas is present.

    摘要翻译: 用于监测与机械呼吸辅助装置的气体供应连接的装置具有包含用于接收来自气体供应源的气体的测量室和收发器装置的直列式壳体,其可操作以将声能发射到和检测通过 测量室。 比较器可操作地连接到收发器装置以从其接收取决于检测到能量的幅度的信号,并且从接收信号与指示流量控制阀可用的目标气体的参考信号的比较产生控制信号,也 如果存在除目标气体之外的气体,则位于壳体内,以阻止气体流过呼吸辅助器。

    Indirect measurement of nitrogen in a multi-component natural gas by heating the gas
    70.
    发明授权
    Indirect measurement of nitrogen in a multi-component natural gas by heating the gas 有权
    通过加热气体间接测量多组分天然气中的氮气

    公开(公告)号:US06754592B2

    公开(公告)日:2004-06-22

    申请号:US10460579

    申请日:2003-06-12

    IPC分类号: G01N3100

    摘要: Methods of indirectly measuring the nitrogen concentration in a natural gas by heating the gas. In two embodiments, the heating energy is correlated to the speed of sound in the gas, the diluent concentrations in the gas, and constant values, resulting in a model equation. Regression analysis is used to calculate the constant values, which can then be substituted into the model equation. If the diluent concentrations other than nitrogen (typically carbon dioxide) are known, the model equation can be solved for the nitrogen concentration.

    摘要翻译: 通过加热气体来间接测量天然气中的氮浓度的方法。 在两个实施例中,加热能与气体中的声速,气体中的稀释剂浓度和常数值相关,产生模型方程。 回归分析用于计算常数值,然后将其代入模型方程。 如果除了氮气(通常是二氧化碳)之外的稀释剂浓度是已知的,则可以解决模型方程的氮浓度。