公开(公告)号：US20100275675A1

公开(公告)日：2010-11-04

申请号：US12746342

申请日：2008-12-04

申请人： Heikki Seppa ,  Teuvo Sillanpää

发明人： Heikki Seppa ,  Teuvo Sillanpää

IPC分类号： G01N29/02 ,  G01P15/00 ,  G01R33/00 ,  G01L11/06 ,  H04R29/00

CPC分类号： G01L11/06 ,  G01L9/0041 ,  G01N29/036 ,  G01N2291/0215 ,  G01P15/08 ,  G01R33/0286

摘要： The invention relates to a sensor (1) and a method for measuring pressure, variation in sound pressure, a magnetic field, acceleration, vibration, or the composition of a gas. The sensor (1) comprises an ultrasound transmitter (2), and a cavity (4) arranged in connection with it. According to the invention, the sensor (1) comprises a passive sensor element (3, 3′) located at the opposite end of the cavity (4) to the ultrasound transmitter (2), the distance of which from the ultrasound transmitter (2) is selected in such a way that the resonance condition is met at the ultrasound frequency used, the ultrasound transmitter (2) comprises a light-construction diaphragm oscillator (9), which is thus well connected to the surrounding medium, and the sensor includes means for measuring the interaction between the ultrasound transmitter (2) and the cavity (4).

摘要翻译： 本发明涉及一种用于测量压力，声压变化，磁场，加速度，振动或气体成分的传感器（1）和方法。 传感器（1）包括超声波发射器（2）和与其连接布置的空腔（4）。 根据本发明，传感器（1）包括位于与超声波发射器（2）的空腔（4）的相对端的无源传感器元件（3,3'），其与超声波发射器（2）的距离 ）以使得在所使用的超声波频率下满足谐振条件的方式选择，超声波发射器（2）包括光构造振动膜（9），其由此良好地连接到周围的介质，并且传感器包括 用于测量超声波发射器（2）和空腔（4）之间的相互作用的装置。

公开(公告)号：US20100018288A1

公开(公告)日：2010-01-28

申请号：US12312307

申请日：2007-05-24

申请人： Kazushi Yamanaka ,  Toshihiro Tsuji ,  Naoya Iwata

发明人： Kazushi Yamanaka ,  Toshihiro Tsuji ,  Naoya Iwata

IPC分类号： G01N23/00

CPC分类号： G01N29/022 ,  G01N29/024 ,  G01N29/032 ,  G01N30/76 ,  G01N2030/025 ,  G01N2030/765 ,  G01N2291/0215 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0423

摘要： The present invention provides a gas analyzer that can be miniaturized and detect a wide variety of gases with high sensitivity, and a method of gas analysis. A separation column 16 is configured so as to pass a sample gas together with a carrier gas through the inside thereof. A surface acoustic wave device 17 has a base material 21 with an annularly continuous annular surface formed of at least apart of a spherical surface; a surface acoustic wave generating means 22 capable of generating a surface acoustic wave that propagates along the annular surface; and a plurality of reaction parts 23 provided along the annular surface so as to change a predetermined physical quantity of the surface acoustic wave in response to the components of the sample gas. The surface acoustic wave device 17 is arranged so that the sample gas passing through the separation column 16 is reacted with the reaction parts 23. The measuring part 18 can measure a physical quantity of the surface acoustic wave propagating along the annular surface, and the components of the sample gas can be analyzed on the basis of the measured physical quantity.

摘要翻译： 本发明提供一种气体分析仪，其可以小型化并且检测各种具有高灵敏度的气体和气体分析方法。 分离塔16被构造成使样品气体与载气一起通过其内部。 表面声波装置17具有由球面至少分开形成的环状连续的环状面的基材21; 表面声波产生装置22，其能够产生沿着环形表面传播的表面声波; 以及沿着环状表面设置的多个反应部23，以响应于样品气体的分量而改变声表面波的预定物理量。 声表面波装置17被布置成使得通过分离柱16的样品气体与反应部分23反应。测量部分18可以测量沿着环形表面传播的表面声波的物理量，并且组分 的样品气体可以根据测量的物理量进行分析。

公开(公告)号：US20090145233A1

公开(公告)日：2009-06-11

申请号：US11719120

申请日：2005-11-10

申请人： Peter C. Eklund ,  Abhijat Goyal ,  Srinivas A. Tadigadapa

发明人： Peter C. Eklund ,  Abhijat Goyal ,  Srinivas A. Tadigadapa

IPC分类号： G01H11/00

CPC分类号： B82Y30/00 ,  B82Y15/00 ,  G01N27/06 ,  G01N29/022 ,  G01N29/036 ,  G01N2291/0212 ,  G01N2291/0215 ,  G01N2291/0237 ,  G01N2291/0256 ,  G01N2291/02863 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427 ,  G01N2291/101

摘要： Methods for sensing and building sensors provide for adding nanotubes to a sensor to improve characteristics such as the Q-factor associated with the sensor. Mass loading and damping characteristics of micromachined quartz crystal resonators on which a thin film of debundled single-walled carbon nanotube (SWNT) has been deposited are disclosed. An absolute mass sensitivity of ˜100 fg was experimentally measured by monitoring the continuous desorption of gases from SWNT surfaces in a vacuum ambient.

摘要翻译： 用于感测和构建传感器的方法提供了向传感器添加纳米管以改善诸如与传感器相关联的Q因子的特性。 公开了其上已经沉积有分解的单层碳纳米管（SWNT）的薄膜的微加工石英晶体谐振器的质量负载和阻尼特性。 通过在真空环境中监测来自SWNT表面的气体的连续解吸，实验测量了约100fg的绝对质量灵敏度。

公开(公告)号：US20090025460A1

公开(公告)日：2009-01-29

申请号：US11829361

申请日：2007-07-27

申请人： Yildirim Hurmuzlu ,  Peter Antich ,  Ali Dogru ,  Edmond Richer ,  Billy Smith

发明人： Yildirim Hurmuzlu ,  Peter Antich ,  Ali Dogru ,  Edmond Richer ,  Billy Smith

IPC分类号： G01N29/02

CPC分类号： G01N29/024 ,  G01F1/74 ,  G01N29/032 ,  G01N29/326 ,  G01N2291/0215 ,  G01N2291/0224 ,  G01N2291/02836 ,  G01N2291/02872 ,  G01N2291/02881

摘要： An apparatus and method to determine fractions of various phases in a multiphase fluid. The apparatus includes main body including an interior configured receive a multiphase fluid and an exterior. The apparatus senses fluid pressure of multiphase fluid received in the interior and senses a fluid temperature of the multiphase fluid. The apparatus transmits an ultrasonic wave into the fluid and detects the transmitted wave to determine its velocity and attenuation. The apparatus may adjust the determined velocity and attenuation based on the temperature and pressure of the fluid to compensate for a difference between the sensed temperature and pressure and a standard temperature and pressure. The apparatus determines a gas fraction, water fraction, and a non-water fluid fraction of the multiphase fluid based on the sensed fluid pressure, the sensed fluid temperature, and the velocity and attenuation of the ultrasonic wave in the multiphase fluid.

摘要翻译： 确定多相流体中各相的分数的装置和方法。 该装置包括主体，其包括内部构造，接收多相流体和外部。 该装置感测在内部接收的多相流体的流体压力并感测多相流体的流体温度。 该装置将超声波传输到流体中并检测发射波，以确定其速度和衰减。 该装置可以基于流体的温度和压力来调整所确定的速度和衰减，以补偿所感测的温度和压力之间的差异以及标准温度和压力。 该装置基于检测的流体压力，感测的流体温度以及多相流体中超声波的速度和衰减来确定多相流体的气体分数，水分和非水流体分数。

公开(公告)号：US20080293148A1

公开(公告)日：2008-11-27

申请号：US11662914

申请日：2005-09-15

申请人： Tae Song Kim ,  Dae Sung Yoon ,  Kyo Seon Hwang ,  Jeong Hoon Lee

发明人： Tae Song Kim ,  Dae Sung Yoon ,  Kyo Seon Hwang ,  Jeong Hoon Lee

IPC分类号： G01N33/00 ,  B01J19/00 ,  G01N21/00

CPC分类号： G01N29/022 ,  B82Y30/00 ,  B82Y35/00 ,  G01N29/036 ,  G01N29/326 ,  G01N2291/0215 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0258 ,  G01N2291/0426 ,  G01N2291/0427 ,  Y10T436/143333

摘要： Disclosed are system and method for measuring a bio-element capable of accurately detecting whether a bio-element such as protein, gene and the like is present in an atmosphere or vapor phase having controlled temperature and humidity thereof and measuring a content of the bio-element. According to an embodiment of the invention, the method comprises steps of preparing a cantilever sensor having a plurality of cantilevers; measuring a basis resonant frequency for the plurality of cantilevers; reacting the cantilevers with a sample including a bio-element; measuring resonant frequencies of the cantilevers after the reaction, in a closed system that is isolated from an exterior environment and temperature and humidity thereof are controlled to a specific state; and calculating variations of the resonant frequencies of the cantilevers before and after the reaction to carry out a quantitative analysis of the bio-element included in the sample.

摘要翻译： 本发明公开了一种用于测量生物元素的系统和方法，其能够准确检测在具有受控温度和湿度的气氛或气相中是否存在诸如蛋白质，基因等的生物元件，并测量生物元素的含量， 元件。 根据本发明的实施例，该方法包括制备具有多个悬臂的悬臂传感器的步骤; 测量所述多个悬臂的基本共振频率; 使悬臂与包括生物元件的样品反应; 在与外部环境隔离的封闭系统中测量反应后的悬臂的谐振频率，并将其温度和湿度控制在特定状态; 并计算反应前后悬臂的共振频率的变化，以对样品中包含的生物元素进行定量分析。

公开(公告)号：US20080134755A1

公开(公告)日：2008-06-12

申请号：US11567761

申请日：2006-12-07

申请人： Yufeng HUANG

发明人： Yufeng HUANG

IPC分类号： G01N29/02

CPC分类号： G01N29/024 ,  G01F1/668 ,  G01F1/86 ,  G01N29/222 ,  G01N29/4418 ,  G01N2291/0215 ,  G01N2291/02836

摘要： A method of analyzing a gas specimen mixture includes measuring the concentrations of inert components in the gas specimen mixture and the pressure and temperature of the gas specimen mixture. A number of sample gas mixtures are generated with varying percentages of hydrocarbon gases, each including the measured inert component concentrations. For each generated sample gas mixture, the method includes calculating the speed of sound therein based on the measured pressure and temperature and the particular percentages of hydrocarbon gases therein, measuring the speed of sound in the gas specimen mixture, and iteratively comparing the measured speed of sound with the calculated speed of sound in different sample gas mixtures until convergence for a particular sample gas mixture. The molecular weight of the particular sample gas mixture is calculated, and set the molecular weight of the gas specimen mixture to the calculated molecular weight.

摘要翻译： 分析气体样品混合物的方法包括测量气体样品混合物中的惰性组分的浓度和气体样品混合物的压力和温度。 产生多种样品气体混合物，其具有不同百分比的烃气体，每个气体混合物包括测量的惰性组分浓度。 对于每个产生的样品气体混合物，该方法包括基于所测量的压力和温度以及其中的烃气体的特定百分比来计算其中的声速，测量气体样品混合物中的声速，并且迭代地比较测量的速度 声音与不同样品气体混合物中计算出的声速，直到特定样品气体混合物收敛。 计算特定样品气体混合物的分子量，并将气体样品混合物的分子量设定为计算的分子量。

公开(公告)号：US20070256475A1

公开(公告)日：2007-11-08

申请号：US11797375

申请日：2007-05-03

申请人： Robert Crane

发明人： Robert Crane

IPC分类号： G01N29/02

CPC分类号： G01N29/42 ,  G01N29/036 ,  G01N29/222 ,  G01N29/348 ,  G01N2291/0215

摘要： A method of identifying and determining the concentrations of multiple species in a gas sample, includes providing a spectrophone assembly having a detector chamber, supplying the gas sample to the detector chamber and simultaneously passing a plurality of radiations of different wavelengths into the detector chamber to produce multiple acoustic resonances of different frequencies. Acoustic resonances in the detector chamber are simultaneously sensed to produce corresponding electrical signals, and the electrical signals are analysed to identify the species present in the gas sample and determine the concentration of each specie.

摘要翻译： 识别和确定气体样品中多种物质的浓度的方法包括提供具有检测器室的分光镜组件，将气体样品供应到检测器室并同时将多个不同波长的辐射传递到检测器室中以产生 不同频率的多声共振。 同时检测检测器室中的声共振以产生相应的电信号，并分析电信号以识别气体样品中存在的物质并确定每种物质的浓度。

公开(公告)号：US20070251298A1

公开(公告)日：2007-11-01

申请号：US11412212

申请日：2006-04-26

申请人： Alwarappa Sivaraman

发明人： Alwarappa Sivaraman

IPC分类号： G01N29/02

CPC分类号： G01N29/036 ,  G01N29/30 ,  G01N2291/0215

摘要： An apparatus for BTU measurement of natural gas having at least one reference spherical acoustic resonator containing a reference gas, a sample gas spherical acoustic resonator containing a natural gas sample, a first acoustic transmitter adapted to transmit a first acoustic signal into the natural gas sample, a second acoustic transmitter adapted to transmit a second acoustic signal into the reference gas, a first acoustic receiver adapted to receive at least a portion of the first acoustic signal, and a second acoustic receiver adapted to receive at least a portion of the second acoustic signal. Using the third radial resonance frequencies for the sample gas and reference gas, a data processor operably connected with a signal output of the first acoustic receiver determines the specific gravity of the natural gas sample. The discovered linear relationship between specific gravity and heating value of natural gas enables a determination of the heating value from the measured specific gravity.

摘要翻译： 一种用于BTU测量天然气的装置，其具有至少一个包含参考气体的参考球面声共振器，包含天然气样品的样品气球形声谐振器，适于将第一声信号传输到天然气样品中的第一声发射器， 适于将第二声信号传输到参考气体中的第二声发射器，适于接收第一声信号的至少一部分的第一声接收器，以及适于接收第二声信号的至少一部分的第二声接收器 。 使用样品气体和参考气体的第三径向共振频率，与第一声学接收器的信号输出可操作地连接的数据处理器确定天然气样品的比重。 发现天然气的比重和热值之间的线性关系可以根据测得的比重确定发热值。

公开(公告)号：US07270001B2

公开(公告)日：2007-09-18

申请号：US10516030

申请日：2003-05-31

申请人： Oliver Betz

发明人： Oliver Betz

IPC分类号： G01F23/00

CPC分类号： G01N29/34 ,  G01F1/002 ,  G01F1/662 ,  G01F1/667 ,  G01F1/74 ,  G01N29/024 ,  G01N29/11 ,  G01N29/222 ,  G01N2291/0215 ,  G01N2291/0217 ,  G01N2291/02809 ,  G01N2291/02836 ,  G01N2291/044

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。

公开(公告)号：US07194891B2

公开(公告)日：2007-03-27

申请号：US10828096

申请日：2004-04-20

申请人： Harry L. Tuller ,  Huankiat Seh ,  Takeo Hyodo

发明人： Harry L. Tuller ,  Huankiat Seh ,  Takeo Hyodo

IPC分类号： G01N29/00 ,  G01N29/02

CPC分类号： F01N3/0814 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2253/108 ,  B01D2255/2042 ,  B01D2255/50 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/208 ,  F01N13/008 ,  F01N13/0097 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2610/02 ,  F02D41/0275 ,  F02D41/146 ,  F02D2041/1468 ,  G01N29/036 ,  G01N29/222 ,  G01N29/326 ,  G01N33/0037 ,  G01N33/0054 ,  G01N2291/014 ,  G01N2291/0215 ,  G01N2291/0217 ,  G01N2291/02836 ,  G01N2291/02881 ,  G01N2291/0422 ,  G01N2291/0427 ,  Y02A50/245 ,  Y02A50/246 ,  Y02T10/24

摘要： A method of sensing the amount of a gas in a fluid flow includes operating an acoustic wave (AW) sensor at a first resonant frequency. The AW sensor includes a high temperature stable piezoelectric plate coupled to a first gas-absorbing layer. Also included is combining a fluid flow having a gas component with the first gas-absorbing layer at a temperature of at least about 500° C. At least one resonant frequency of the AW sensor is sensed. The amount of gas in the fluid flow is sensed by correlating the resonant frequency with the amount of gas absorbed in the first gas-absorbing layer.A sensor for sensing the amount of a gas in a fluid flow includes a first gas-absorbing layer, a high-temperature-stable piezoelectric plate coupled to the first gas-absorbing layer, and a controller coupled to the high-temperature-stable piezoelectric plate. The controller is coupled to the high-temperature stable piezoelectric plate to measure a resonant frequency in the high temperature stable piezoelectric plate correlated with an amount of gas absorbed by the first gas absorbing layer, whereby the amount of a gas in a fluid flow is sensed. The high-temperature-stable piezoelectric plate is formed of at least one material selected from the group consisting of AlN, GaN, Al1-xGaxN (0≦x≦1), GaPO4, AlPO4, and materials having the crystal structure of Ca2Ga2Ge4SiO14, e.g., Ca2Ga2Ge4SiO14, La3Ga5SiO14, La3Ga5.5Nb0.5O14, La3Ga5.5Ta0.5O14, and the like.

摘要翻译： 检测流体流中的气体量的方法包括以第一谐振频率操作声波（AW）传感器。 AW传感器包括耦合到第一气体吸收层的高温稳定的压电板。 还包括在至少约500℃的温度下将具有气体成分的流体流与第一气体吸收层组合。感测AW传感器的至少一个谐振频率。 通过将共振频率与在第一气体吸收层中吸收的气体的量相关联来检测流体流中的气体量。