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111. 发明授权

US4484478A Procedure and means for measuring the flow velocity of a suspension flow, utilizing ultrasonics 失效
标题翻译：使用超声波测量悬浮液流速的步骤和方法
公开(公告)号：US4484478A
公开(公告)日：1984-11-27
申请号：US432367
申请日：1982-09-30
申请人： Eino Harkonen
发明人： Eino Harkonen
IPC分类号： G01P5/24 , G01F1/74
CPC分类号： G01F1/667 , G01F1/74 , G01P5/24
摘要： In a method of measuring the flow velocity of a suspension by ultrasonic echo pulse technique, two or several ultrasonic transducers, located at a distance from each other, are placed on the surface of the pipe conducting a suspension flow. An ultrasonic pulse is transmitted from the transducers through the pipe and an echo of the ultrasonic pulse is received after a time determined by the depth of the suspension. The echo pulses are received, and a low frequency signal contained in such pulses, caused by fibres or other particles in the suspension, is amplitude-detected. A second, or later, echo from the opposite wall of the pipe is utilized if a received echo is masked by the transmitted pulse. The signals derived from the transducers are compared by correlation and the flow velocity of the suspension to be measured is thus determined. The second echo from the opposite wall of the measuring pipe is preferably used. The ultrasonic pulse is delivered from the transducer perpendicularly against the opposite wall of the pipe and is reflected back to the transducer side of the pipe when it is reflected again back to the opposite side and once again reflected to the transducer.
摘要翻译：在通过超声波回波脉冲技术测量悬浮液的流速的方法中，将两个或几个位于彼此间隔一定距离的超声换能器放置在进行悬浮液流动的管的表面上。从换能器通过管道传送超声波脉冲，并且在由悬架的深度确定的时间之后接收超声波脉冲的回波。回波脉冲被接收，并且由悬架中的纤维或其他颗粒引起的包含在这种脉冲中的低频信号被振幅检测。如果接收到的回波被传输的脉冲掩蔽，则使用来自管道的相对壁的第二次或更晚的回波。通过相关性比较从换能器得到的信号，从而确定待测量的悬浮液的流速。优选使用来自测量管的相对壁的第二回波。超声波脉冲从传感器垂直地传递到管的相对壁上，并且当它被再次反射回到相反侧并被再次反射到换能器时被反射回到管的换能器侧。

112. 发明授权

US4438652A Ultrasonic Doppler flowmeter 失效
标题翻译：超声波多普勒流量计
公开(公告)号：US4438652A
公开(公告)日：1984-03-27
申请号：US354620
申请日：1982-03-04
申请人： Kouji Saito
发明人： Kouji Saito
IPC分类号： G01P5/00 , G01F1/66 , G01P5/24
CPC分类号： G01P5/24 , G01F1/663
摘要： An ultrasonic Doppler flowmeter in which a received signal processing part includes a reference signal generator for generating a reference signal corresponding to the magnitude of a received signal, and a comparator for comparing the received signal with the reference signal. The reference signal varies in accordance with the magnitude of the received signal, and further may possess a hysteresis width corresponding to the output of the comparator. Therefore, a noise signal is effectively removed from the received signal at the comparator, and only a Doppler shift frequency is detected.
摘要翻译：一种超声多普勒流量计，其中接收信号处理部分包括用于产生对应于接收信号的幅度的参考信号的参考信号发生器，以及用于将接收信号与参考信号进行比较的比较器。参考信号根据接收信号的大小而变化，并且还可以具有与比较器的输出对应的滞后宽度。因此，在比较器处有效地从接收信号去除噪声信号，并且仅检测到多普勒频移。

113. 发明授权

US4244212A Fluidic pressure ratio sensor 失效
标题翻译：流体压力比传感器
公开(公告)号：US4244212A
公开(公告)日：1981-01-13
申请号：US42470
申请日：1979-05-25
申请人： David A. Stignani
发明人： David A. Stignani
IPC分类号： G01F1/40 , G01L15/00 , G01P5/01 , G01P5/14 , G01P5/24 , G01F7/00
CPC分类号： G01P5/01 , G01F1/40 , G01L15/00 , G01P5/14 , G01P5/24
摘要： A pressure ratio detector having a housing with a flow channel through the housing. A plug, having helical grooves, is positioned in the flow channel. A sudden expansion region is provided in the flow channel downstream of the plug which induces a nutation in the flow. The acoustic nutational frequencies are measured with a piezoelectric transducer to provide an output signal proportional to the pressure ratio across the device. An orifice device is provided in the inlet to adapt the device for measuring pressure ratios greater than 2.0.
摘要翻译：一种压力比检测器，其具有通过壳体的流动通道的壳体。具有螺旋槽的塞子位于流动通道中。在塞子下游的流动通道中提供突然膨胀区域，其在流动中引起章动。用压电换能器测量声学性能频率，以提供与整个装置的压力比成比例的输出信号。在入口处设置孔口装置，以使装置适应于大于2.0的压力比。

114. 发明授权

US4036065A Grain loss monitor 失效
标题翻译：粮食损失监测
公开(公告)号：US4036065A
公开(公告)日：1977-07-19
申请号：US685282
申请日：1976-05-11
申请人： William P. Strelioff , William S. Elliott , Dale Johnson
发明人： William P. Strelioff , William S. Elliott , Dale Johnson
IPC分类号： A01D41/127 , G01N29/04 , G01P5/24 , G01P13/00 , G01N29/00
CPC分类号： A01D41/1273 , G01N29/046 , G01P13/0073 , G01P5/24 , G01N2291/02408
摘要： A percentage of the grain lost is sampled constantly by sensors at locations across the rear of the sieve of a combine and the sound of the grain kernels striking the sensors is picked up by a microphone, amplified, filtered and fed to a ratio computing device which calculates the total grain loss from the sampling and displays same on a meter. A further sensor samples grain passing through the rear portion of a straw walker of a combine as this bears a direct relationship to the quantity of grain passing over the end of the walker. It can therefore be used to calculate the grain loss over the end of the walker. Once again the sound of the grain kernels striking the sensor is picked up by a microphone, amplified, filtered and fed to a ratio computing device which calculates the grain loss over the end of the walker and displays same on the meter. A switching device enables the total of the grain losses to be calculated from the two sensors by means of a summation device to which both sensor signals are connected. This switching device also enables the operator to weed out the grain loss over the sieve or the grain loss over the walker thus enabling him to determine where adjustments are required.
摘要翻译：谷物损失的百分比通过传感器在组合筛的后部的位置不断地进行采样，并且麦克风撞击传感器的声音由麦克风拾取，被放大，滤波并馈送到比率计算装置，比率计算装置计算采样中的总谷物损失，并在仪表上显示相同的数据。进一步的传感器对通过组合的吸管行走器后部的颗粒进行采样，因为这与经过助行器末端的颗粒数量成直接关系。因此，它可用于计算步行者末端的谷物损失。再次，麦克风撞击传感器的声音由麦克风拾取，放大，滤波并馈送到比例计算装置，该比率计算装置计算步行器末端的谷物损失并在米上显示相同的谷物损失。开关装置使得能够通过两个传感器信号连接的求和装置从两个传感器计算总的谷物损失。该开关装置还使得操作者能够清除筛子上的谷物损失或在步行者上的粮食损失，从而使得他能够确定需要调整的位置。

115. 发明授权

US3926841A Anti-caking composition 失效
标题翻译：防霉组合物
公开(公告)号：US3926841A
公开(公告)日：1975-12-16
申请号：US36588573
申请日：1973-06-01
申请人： LEVER BROTHERS LTD
发明人： HABASKO WERNER , SYROVATKA RUDOLF
IPC分类号： B01J2/30 , G01P5/24 , C05G3/00 , C09K3/00
CPC分类号： G01P5/24 , B01J2/30
摘要： An improved anti-caking composition for addition to particulate salts, particularly fertilizer particles, to prevent their coalescence and caking, containing a cationic aliphatic amine and a carboxylic acid, is provided by the inclusion of a small amount of an alkali.

116. 发明授权

US3845660A Detection of velocities of fluids in conduits 失效
标题翻译：检测流体中流体的速度
公开(公告)号：US3845660A
公开(公告)日：1974-11-05
申请号：US22065572
申请日：1972-01-25
申请人： ICI LTD
发明人： MCDONNELL N
IPC分类号： G01F1/66 , G01F1/708 , G01F1/712 , G01N29/04 , G01N29/14 , G01P5/24 , G01F1/00
CPC分类号： G01F1/712 , G01F1/66 , G01F1/7082 , G01N29/046 , G01N29/14 , G01N2291/015 , G01N2291/021 , G01N2291/022 , G01N2291/02818 , G01N2291/02836 , G01P5/24
摘要： Apparatus for detecting the velocity of a fluid in a conduit comprises a directional sonic detector directed at but spaced away from the conduit. arrangement cuts down reception of background noise.
摘要翻译：用于检测管道中的流体速度的装置包括定向的声波检测器，其指向但间隔开远离导管。安排减少背景噪音的接收。

117. 发明授权

US3807228A Ultrasonic velocity and mass flowmeter 失效
标题翻译：超声速度和质量流量计
公开(公告)号：US3807228A
公开(公告)日：1974-04-30
申请号：US19495771
申请日：1971-11-02
申请人： GULF RESEARCH DEVELOPMENT CO
发明人： MATZUK T
IPC分类号： G01F1/704 , G01P5/18 , G01P5/24 , G01F1/00
CPC分类号： G01P5/18 , G01F1/7044 , G01P5/24
摘要： A system for measuring the velocity of a flowing stream in a hostile environment, such as at high pressure and high temperature, by focusing acoustical energy through the conduit to a location within the stream to thereby remotely create ''''hot spots'''' which function as tracers. The travel time of the ''''hot spots'''' from a tracer production station to a detection station is used to find velocity. Means to make a focusing traverse to aid in mass flow determination is also provided.
摘要翻译：用于通过将声能通过导管聚焦到流中的位置来测量诸如高压和高温等恶劣环境中的流动流的速度的系统，从而远程产生用作示踪剂的“热点”。使用从示踪生产站到检测站的“热点”的行进时间来找到速度。还提供了用于进行聚焦横越辅助质量流量确定的方法。

118. 发明授权

US3680375A Sonic velocity sensing 失效
标题翻译： SONIC VELOCITY SENSING
公开(公告)号：US3680375A
公开(公告)日：1972-08-01
申请号：US3680375D
申请日：1969-09-12
申请人： J TEC ASS INC
发明人： JOY ROBERT D , COLTON RUSSELL F
IPC分类号： G01F1/32 , G01P5/00 , G01P5/01 , G01P5/24
CPC分类号： G01F1/3281 , G01P5/00 , G01P5/01 , G01P5/24
摘要： This disclosure describes a method and apparatus for determining the relative velocity between an object and a fluid stream. A vortex strut attached to the object is located in the fluid stream so as to generate Karman vortices at a frequency proportional to the relative velocity between the object and the stream. In one embodiment, a sonic signal transmitting transducer is located on one side of the strut''s wake and a sonic signal receiving transducer is located on the other side of the wake. The transmitting transducer''s signal is modulated by the Karman vortices and received by the receiving transducer. An electronic detecting system is connected to the signal receiving transducer for detecting the modulations created by the Karman vortices. An alternate embodiment of the invention combines the sonic signal transmitting transducer and the sonic signal receiving transducer in a single transducer structure. The combined transducer structure is mounted in the strut. A burst of pulses is transmitted and reflected by a Karman vortex back to the combined transducer structure where the reflected signal is detected.
摘要翻译：本公开描述了一种用于确定物体和流体流之间的相对速度的方法和装置。连接到物体的涡流支柱位于流体流中，以便以与物体和物流之间的相对速度成比例的频率产生卡曼涡流。在一个实施例中，声音信号发射换能器位于支柱尾迹的一侧，声音信号接收换能器位于尾流的另一侧。发射传感器的信号由Karman涡流调制并由接收传感器接收。电子检测系统连接到信号接收换能器，用于检测由Karman涡流产生的调制。本发明的替代实施例将声音信号发射换能器和声音信号接收换能器组合在单个换能器结构中。组合的传感器结构安装在支柱中。一脉冲脉冲被卡门涡流传送并反射回到检测反射信号的组合传感器结构。

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