-
公开(公告)号：US07437948B2
公开(公告)日：2008-10-21
申请号：US10590393
申请日：2005-02-24
申请人： Masami Kishiro , Kouji Hagiwara , Toshihiro Yamamoto , Hironobu Yao , Yoshinori Ohmuro , Noritomo Hirayama
发明人： Masami Kishiro , Kouji Hagiwara , Toshihiro Yamamoto , Hironobu Yao , Yoshinori Ohmuro , Noritomo Hirayama
IPC分类号： G01F1/66
摘要： A flowmeter includes: a transit time method unit having a sensor and a reception signal amplification control unit and a flow rate calculation unit which are connected to the sensor via a sensor selector switch; a pulse Doppler method having a reception signal amplification control unit and an integration calculation unit which are connected to the sensor; a transmission/reception timing control unit common to them; a measurement method selection control unit for controlling switching between the transit time method unit and the pulse Doppler method unit, and parallel operation; and a measurement value output selector switch for selecting the output of the transit time method unit and the pulse Doppler method unit. That is, the single flowmeter can perform flow rate measurement by the transit time method having no restriction on the measurement range as well as by the pulse Doppler method having an upper limit of the measurement range but enabling a highly accurate measurement.
摘要翻译： 流量计包括：具有传感器和接收信号放大控制单元和流量计算单元的通行时间方法单元，其经由传感器选择开关连接到传感器; 脉冲多普勒方法，具有连接到所述传感器的接收信号放大控制单元和积分计算单元; 它们共同的发送/接收定时控制单元; 测量方法选择控制单元，用于控制通过时间方法单元和脉冲多普勒方法单元之间的切换，并行操作; 以及用于选择通过时间方法单元和脉冲多普勒方法单元的输出的测量值输出选择器开关。 也就是说，单个流量计可以通过对测量范围没有限制的通过时间方法以及具有测量范围的上限但能够进行高精度测量的脉冲多普勒方法来进行流量测量。
-
2.发明申请Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect 有权用声多普勒效应测量流体流速曲线的装置和方法公开(公告)号：US20060020404A1
公开(公告)日：2006-01-26
申请号：US11183181
申请日：2005-07-15
IPC分类号： G01F17/00
CPC分类号： G01F1/663 , G01F1/668 , G01F25/0007 , G01P5/241
摘要： An apparatus and method for measuring a flow velocity profile of fluid traveling in a pipe or conduit uses an ultrasonic wave transmitted from an ultrasonic wave transducer mounted at an angle on the outside of a pipe using a wedge, and made incident onto the fluid in the pipe to measure the fluid flow velocity profile, using the principle that a frequency of an ultrasonic wave, reflected by a reflector existing in the fluid, is changed depending on a flow velocity due to Doppler effect. The transmission frequency and the angle of incidence onto the pipe can be selected to suppress frequency dependence of a measured value due to Lamb wave and allow the flow velocity or flow rate of fluid to be measured with a greater accuracy.
摘要翻译： 用于测量在管道或管道中行进的流体的流速分布的装置和方法使用从使用楔形件以一定角度安装在管道外部的超声波换能器发射的超声波，并且入射到管道或管道中的流体上 管道，用于根据由于多普勒效应引起的流速而改变由流体中存在的反射器反射的超声波的频率的原理来测量流体流速分布。 可以选择传输频率和入口角度，以抑制由于兰姆波引起的测量值的频率依赖性，并允许以更高的精度测量流体的流速或流量。
-
公开(公告)号：US07077012B2
公开(公告)日：2006-07-18
申请号：US11042356
申请日：2005-01-25
IPC分类号： G01F1/66
摘要： A wedge unit according to the present invention is used for an ultrasonic Doppler flow meter, being mounted on the outer wall of a pipe in which a fluid flows, supplying an ultrasonic wave to the fluid, receives the reflected wave and supplies the reflected wave to a flow rate calculation unit, comprises a wedge with one surface thereof being mounted on a part of the outer circumference of the pipe and on another surface thereof being equipped with an ultrasonic oscillator that generates the ultrasonic wave in response to an electric signal and receives the reflected wave; and an ultrasonic wave attenuation unit being mounted on the outer circumference of the pipe so as to include a position where an ultrasonic wave injected from the ultrasonic oscillator into the pipe by way of the wedge first reaches the outer wall of the pipe after being reflected by the inner wall thereof.
摘要翻译： 根据本发明的楔形单元用于超声多普勒流量计，安装在流体流动的管的外壁上，向流体提供超声波，接收反射波并将反射波提供给 一个流量计算单元，包括楔形件，其一个表面安装在管的外圆周的一部分上，另一表面上装有一个响应于电信号产生超声波的超声波振荡器，并接收 反射波; 并且超声波衰减单元被安装在管的外周上，以便包括从超声波振荡器注入到超声波振荡器中的超声波通过楔形件首先在被 其内壁。
-
公开(公告)号：US20050166684A1
公开(公告)日：2005-08-04
申请号：US11042356
申请日：2005-01-25
IPC分类号： G01F1/66
摘要： A wedge unit according to the present invention is used for an ultrasonic Doppler flow meter, being mounted on the outer wall of a pipe in which a fluid flows, supplying an ultrasonic wave to the fluid, receives the reflected wave and supplies the reflected wave to a flow rate calculation unit, comprises a wedge with one surface thereof being mounted on a part of the outer circumference of the pipe and on another surface thereof being equipped with an ultrasonic oscillator that generates the ultrasonic wave in response to an electric signal and receives the reflected wave; and an ultrasonic wave attenuation unit being mounted on the outer circumference of the pipe so as to include a position where an ultrasonic wave injected from the ultrasonic oscillator into the pipe by way of the wedge first reaches the outer wall of the pipe after being reflected by the inner wall thereof.
摘要翻译： 根据本发明的楔形单元用于超声多普勒流量计，安装在流体流动的管的外壁上，向流体提供超声波，接收反射波并将反射波提供给 一个流量计算单元，包括楔形件，其一个表面安装在管的外圆周的一部分上，另一表面上装有一个响应于电信号产生超声波的超声波振荡器，并接收 反射波; 并且超声波衰减单元被安装在管的外周上，以便包括从超声波振荡器注入到超声波振荡器中的超声波通过楔形件首先在被 其内壁。
-
5.发明申请Apparatus and method for measuring a fluid velocity profile using acoustic doppler effect 审中-公开使用声学多普勒效应测量流体速度分布的装置和方法公开(公告)号：US20050154307A1
公开(公告)日：2005-07-14
申请号：US10999224
申请日：2004-11-29
摘要： A clamp-on type acoustic Doppler current profiler eliminates, among ultrasound echoes caused by two measurement lines of a longitudinal wave and a shear wave propagating in a piping, the ultrasound echo based on the longitudinal wave, thereby providing the measurement of a flow rate profile and/or a flow rate with a higher accuracy. The profiler includes a wedge mounted to the piping. The wedge includes an inclined surface at which an ultrasonic transducer can be mounted. The inclination is such that the ultrasound transducer receives only the ultrasound echo from the reflection of a shear wave component off the reflectors in the fluid.
摘要翻译： 钳位式声学多普勒电流分析器在由纵波和横波在管道中传播的剪切波的两条测量线引起的超声波回波中消除基于纵波的超声波回波，从而提供流量曲线的测量 和/或具有更高精度的流量。 轮廓仪包括安装到管道上的楔形物。 楔形件包括可安装超声换能器的倾斜表面。 倾斜度使得超声波换能器仅从流体中的反射器的剪切波分量的反射中仅接收超声回波。
-
6.发明授权Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect 有权用声多普勒效应测量流体流速曲线的装置和方法公开(公告)号：US07363174B2
公开(公告)日：2008-04-22
申请号：US11183181
申请日：2005-07-15
CPC分类号： G01F1/663 , G01F1/668 , G01F25/0007 , G01P5/241
摘要： An apparatus and method for measuring a flow velocity profile of fluid traveling in a pipe or conduit uses an ultrasonic wave transmitted from an ultrasonic wave transducer mounted at an angle on the outside of a pipe using a wedge, and made incident onto the fluid in the pipe to measure the fluid flow velocity profile, using the principle that a frequency of an ultrasonic wave, reflected by a reflector existing in the fluid, is changed depending on a flow velocity due to Doppler effect. The transmission frequency and the angle of incidence onto the pipe can be selected to suppress frequency dependence of a measured value due to Lamb wave and allow the flow velocity or flow rate of fluid to be measured with a greater accuracy.
摘要翻译： 用于测量在管道或管道中行进的流体的流速分布的装置和方法使用从使用楔形件以一定角度安装在管道外部的超声波换能器发射的超声波，并且入射到管道或管道中的流体上 管道，用于根据由于多普勒效应引起的流速而改变由流体中存在的反射器反射的超声波的频率的原理来测量流体流速分布。 可以选择传输频率和入口角度，以抑制由于兰姆波引起的测量值的频率依赖性，并允许以更高的精度测量流体的流速或流量。
-
7.发明授权Doppler ultrasonic flowmeter, and processor and method thereof with quantization error correction 有权多普勒超声波流量计，以及具有量化误差校正的处理器及其方法公开(公告)号：US07584065B2
公开(公告)日：2009-09-01
申请号：US11066730
申请日：2005-02-25
IPC分类号： G01F1/00
CPC分类号： G01F1/663
摘要： In a Doppler ultrasonic flowmeter, to obtain a precise flow rate a flow rate calculation equation that corrects a quantization error occurring to a spatial resolution is used. An ultrasonic transducer transmits/receives ultrasonic pulses, and subject the resulting received signals to A/D conversion after a predetermined process is applied thereto. A computation control section calculates the flow velocity distribution. Then, the flow rate is calculated based on the flow rate calculation equation, which corrects the quantization error occurring to the spatial resolution.
摘要翻译： 在多普勒超声波流量计中，为了获得精确的流量，使用了校正空间分辨率产生的量化误差的流量计算式。 超声波换能器发送/接收超声波脉冲，并且在施加了预定的处理之后将所得到的接收信号进行A / D转换。 计算控制部分计算流速分布。 然后，基于流量计算式来计算流量，该流量校正校正空间分辨率发生的量化误差。
-
8.发明授权公开(公告)号：US09285298B2
公开(公告)日：2016-03-15
申请号：US13635304
申请日：2010-12-06
CPC分类号： G01N1/2202 , G01N1/2205 , G01N1/2208 , G01N1/4077 , G01N2001/2223 , G01N2015/0046 , Y10T436/24
摘要： A method of analyzing microparticle compositions and a microparticle composition analyzing device are capable of quantitatively analyzing the mass concentration of air microparticles online for each chemical composition. The particle ray of microparticles in an air sample is converged, and is irradiated onto a narrow domain of a capture body which includes a mesh-shaped structure for capturing the microparticles in the particle ray while removing surplus gas phase components, and the microparticles are captured. Then, the narrow region is subjected to concentrated irradiation of energy rays, and the microparticles that are captured by the capture body are vaporized, sublimated or reacted to yield a desorbed component, which is analyzed.
摘要翻译： 分析微粒组合物的方法和微粒组成分析装置能够在线对每种化学成分定量分析空气微粒的质量浓度。 空气样品中的微粒的粒子束会聚，照射到捕获体的狭窄结构域上，该俘获体包括用于捕获微粒中的微粒的网状结构，同时除去多余的气相成分，并捕获微粒 。 然后，将窄区域进行能量射线的集中照射，并且由捕获体捕获的微粒蒸发，升华或反应以产生解吸组分，并进行分析。
-
公开(公告)号：US6121617A
公开(公告)日：2000-09-19
申请号：US26514
申请日：1998-02-19
IPC分类号： G01N21/03 , G01N21/35 , G01N21/3504 , G01N21/61
CPC分类号： G01N21/3504 , G01N21/031
摘要： An infrared gas analyzer is formed of a source of infrared rays for emitting infrared flux; an infrared flux interrupting device for chopping the emitted infrared flux from the source of the infrared rays; a condensing optical system for obtaining a predetermined solid angle in the emitted infrared flux to thereby form a condensed flux; and a multi-reflection cell disposed at an outlet of the condensing optical system, to which the condensed flux is supplied and a gas to be measured is fed. The multi-reflection cell has a multi-reflection optical system formed of a plurality of concave mirrors. The analyzer also includes an infrared level detector for detecting an amount of infrared rays with a wavelength band absorbed by a component gas to be analyzed and contained in the infrared rays emitted by the multi-reflection cell. At least the condensing optical system, multi-reflection cell and infrared level detector are accurately positioned by using as a reference a position of the condensing optical system at which the condensed flux is emitted, and are coupled tightly at coupling positions without an air-flowing layer. Accordingly, the infrared gas analyzer can be made small to detect and analyze a low density component gas and for an explosion-proof environment.
摘要翻译： 红外线气体分析器由用于发射红外线的红外线源形成; 用于从红外线源切断发射的红外线通量的红外线通量中断装置; 用于在发射的红外线通量中获得预定立体角从而形成冷凝通量的聚光光学系统; 以及设置在聚光光学系统的出口处的多反射单元，供给冷凝的通量并供给待测量的气体。 多反射单元具有由多个凹面镜构成的多反射光学系统。 分析仪还包括红外线检测器，用于检测由待分析的成分气体吸收的波长带的红外线的量，并包含在由多反射单元发射的红外线中。 通过使用冷凝光束发射的聚光光学系统的位置作为参考，精确地定位聚光光学系统，多反射单元和红外电平检测器，并且在没有空气流动的情况下紧密耦合在耦合位置 层。 因此，能够使红外线气体分析装置小型化，对低密度成分气体和防爆环境进行检测分析。
-
10.发明申请METHOD OF ANALYZING MICROPARTICLE COMPOSITION AND MICROPARTICLE COMPOSITION ANALYZING DEVICE 有权分析微晶组合物和微波组分分析装置的方法公开(公告)号：US20130011930A1
公开(公告)日：2013-01-10
申请号：US13635304
申请日：2010-12-06
CPC分类号： G01N1/2202 , G01N1/2205 , G01N1/2208 , G01N1/4077 , G01N2001/2223 , G01N2015/0046 , Y10T436/24
摘要： A method of analyzing microparticle compositions and a microparticle composition analyzing device are capable of quantitatively analyzing the mass concentration of air microparticles online for each chemical composition. The particle ray of microparticles in an air sample is converged, and is irradiated onto a narrow domain of a capture body which includes a mesh-shaped structure for capturing the microparticles in the particle ray while removing surplus gas phase components, and the microparticles are captured. Then, the narrow region is subjected to concentrated irradiation of energy rays, and the microparticles that are captured by the capture body are vaporized, sublimated or reacted to yield a desorbed component, which is analyzed.
摘要翻译： 分析微粒组合物的方法和微粒组成分析装置能够在线对每种化学成分定量分析空气微粒的质量浓度。 空气样品中的微粒的粒子束会聚，照射到捕获体的狭窄结构域上，该俘获体包括用于捕获微粒中的微粒的网状结构，同时除去多余的气相成分，并捕获微粒 。 然后，将窄区域进行能量射线的集中照射，并且由捕获体捕获的微粒蒸发，升华或反应以产生解吸组分，并进行分析。
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.019 秒)