公开(公告)号：US06595051B1

公开(公告)日：2003-07-22

申请号：US09939468

申请日：2001-08-24

申请人： William D. Chandler, Jr.

发明人： William D. Chandler, Jr.

IPC分类号： G01F2314

CPC分类号： G01F23/161 ,  G01F23/185 ,  H01H35/18 ,  H01H35/2628 ,  H01H35/2657

摘要： An improved pressure activated control apparatus is provided for sensing fluid pressure and triggering one or more switches in response to the fluid pressure, as desired. The apparatus is designed to be placed within a fluid of a reservoir. The apparatus includes a first resilient member, such as a pliable rolling diaphragm or bellofram, having an outer surface exposed to the fluid and responsive to the fluid pressure. The pressure activated control apparatus includes a second resilient member, such as a spring with a chosen spring constant, k, that provides a biasing force against the diaphragm that is opposite the fluid pressure. A transducer is operative to monitor changes in pressure of gases within the apparatus causes by movement of the diaphragm. A controller is responsive to the transducer and selectable fluid level thresholds to activate pumps and/or valves for adjusting the level of the fluid in the reservoir.

摘要翻译： 根据需要，提供改进的压力启动控制装置，用于检测流体压力并响应于流体压力触发一个或多个开关。 设备被设计成放置在储存器的流体内。 该装置包括具有暴露于流体的外表面并且响应于流体压力的第一弹性构件，例如柔韧的滚动隔膜或隔膜。 压力驱动控制装置包括第二弹性构件，例如具有选定的弹簧常数k的弹簧，其提供相对于流体压力的隔膜的偏压力。 换能器可操作以监测由于隔膜的移动引起的装置内的气体的压力变化。 控制器响应于换能器和可选择的液位阈值以激活用于调节储存器中的流体水平的泵和/或阀。

公开(公告)号：US06647781B2

公开(公告)日：2003-11-18

申请号：US10255641

申请日：2002-09-27

申请人： Tyan Khak Su

发明人： Tyan Khak Su

IPC分类号： G01F2314

CPC分类号： G01F23/168

摘要： A water depth measuring method comprises steps of making a bundle of reference water column pressure measuring tubes of a U character form of the number of n≧2 at a same length with a water depth measuring tube in order to compensate for a total error of a water depth measurement; filling an amount of water into the reference water column pressure measuring tubes to form water columns therein; measuring the water pressure in the reference water column pressure measuring tube by a pressure transducer before measuring a water depth; subtracting previously known water column pressure values derived from the measured water pressure values to calculate total error values; calculating a total error based on the total error values, in which the total error was generated upon measuring of the bubble generating pressure in the water column pressure measuring tubes; subtracting the total error from the bubble generating pressure, dividing the calculated water column pressures by the water column pressure in the reference water column pressure measuring tube having the most approximate value thereto and multiplying the re-calculated value by the water column pressure thereby to measure a water depth in a higher accuracy.

摘要翻译： 一种水深测量方法，包括以下步骤：将与水深测量管相同长度的n≥2的U字符形式的参考水柱压力测量管束制成一个水平测量管，以便补偿总误差 水深测量; 将一定量的水注入参考水柱压力测量管中以在其中形成水柱; 在测量水深之前，用压力传感器测量参考水柱压力测量管中的水压; 减去从测量的水压值导出的先前已知的水柱压力值，以计算总误差值; 基于总误差值计算总误差，其中在测量水柱压力测量管中的气泡产生压力时产生总误差; 从气泡发生压力减去总误差，将计算出的水柱压力除以最接近值的参考水柱压力测量管中的水柱压力，并将再计算值乘以水柱压力，从而测量 水深在更高的精度。

公开(公告)号：US06601449B1

公开(公告)日：2003-08-05

申请号：US10140357

申请日：2002-05-06

申请人： Derrick A. Jones ,  Thomas R. Ray

发明人： Derrick A. Jones ,  Thomas R. Ray

IPC分类号： G01F2314

CPC分类号： G01F23/167

摘要： A self-regulating bubble tube assembly is used for determining the hydrostatic pressure exerted by fluids, such as drilling mud. The bubble tube assembly can be used to determine fluid level based upon said hydrostatic pressure and when bubble tubes are used in pairs can be used to determine a pressure differential that will indicate the density of the fluid. The bubble tube assembly comprises a flow of air directed through a diaphragm type pressure regulator. The pressure regulator output is connected to the bubble tube, which is partially submerged in the fluid, through a precision, in-line, flow limiting orifice. A feedback line from the bubble tube runs to one side of the diaphragm of the pressure regulator where the back pressure from the tube will regulate the output pressure from the regulator to maintain a pre-selected constant rate of air flow through the bubble tube. Hydrostatic pressure exerted by the liquid is measured from a line leading from the bubble tube to a pressure sensitive meter or the like.

摘要翻译： 自调节气泡管组件用于确定由诸如钻井泥浆的流体施加的静水压力。 气泡管组件可以用于基于所述静水压力来确定流体液位，并且当气泡管成对使用时，可以用于确定将指示流体密度的压力差。 气泡管组件包括通过隔膜式压力调节器的空气流。 压力调节器输出通过精密的在线流量限制孔连接到部分浸没在流体中的气泡管。 来自气泡管的反馈线延伸到压力调节器的隔膜的一侧，其中来自管的背压将调节来自调节器的输出压力，以保持预先选定的恒定气流通过气泡管的速率。 液体施加的静水压力是从从气泡管通向压力敏感仪表等的线来测量的。

公开(公告)号：US06549857B2

公开(公告)日：2003-04-15

申请号：US09847944

申请日：2001-05-02

申请人： Michael R. Fierro ,  Joseph W. Maresca, Jr.

发明人： Michael R. Fierro ,  Joseph W. Maresca, Jr.

IPC分类号： G01F2314

CPC分类号： G01M3/2815

摘要： A method of detecting a leak in a pressurized pipeline system, in which a measurement is performed to determine the difference in the rate of change of pressure due to a leak between one pressure level and at least one other pressure level, after compensation has been made for thermally induced changes in the pressure.

摘要翻译： 一种在加压管道系统中检测泄漏的方法，其中进行测量以确定在补偿之后由于一个压力水平和至少一个其他压力水平之间的泄漏造成的压力变化率的差异 用于热诱导的压力变化。

公开(公告)号：US06513376B1

公开(公告)日：2003-02-04

申请号：US09974251

申请日：2001-10-10

申请人： Zachary A. Prather ,  David A. Stacey

发明人： Zachary A. Prather ,  David A. Stacey

IPC分类号： G01F2314

CPC分类号： G01F23/165 ,  G01F23/18

摘要： A system for indicating an amount of a process liquid contained within an interior of an ampoule. A first conduit is in selective fluid communication with the interior of the ampoule, and has a first opening configured for disposal below an upper surface of the process liquid. The first conduit introduces a carrier gas into the interior of the ampoule. A second conduit is also in selective fluid communication with the interior of the ampoule, and has a second opening configured for disposal above the upper surface of the process liquid. The second conduit receives the carrier gas from the interior of the ampoule. A pressure differential sensor is disposed between and is in selective fluid communication with the first conduit and the second conduit. The pressure differential sensor senses a pressure differential between the first conduit and the second conduit. An indicator indicates the amount of the process liquid in the ampoule, based at least in part upon the pressure differential between the first conduit and the second conduit. Thus, the system as described above provides selectively continuous monitoring of the amount of the process liquid that is in the ampoule. Furthermore, the system monitors the amount in real time, and is relatively inexpensive to implement in a new chemical vapor deposition system, or to add to an existing chemical vapor deposition system.

摘要翻译： 一种用于指示包含在安瓿内部的处理液体的量的系统。 第一导管与安瓿瓶的内部选择性地流体连通，并且具有被配置用于处理在处理液体的上表面下方的第一开口。 第一个导管将载气引入安瓿的内部。 第二导管还与安瓿的内部选择性地流体连通，并且具有第二开口，其构造成用于处理在处理液体的上表面之上。 第二导管从安瓿的内部接收载气。 压力差传感器设置在与第一管道和第二管道选择性流体连通之间。 压差传感器感测第一导管和第二导管之间的压力差。 至少部分地基于第一导管和第二导管之间的压力差，指示器指示安瓿中的处理液体的量。 因此，如上所述的系统提供对安瓿中的处理液体的量的选择性连续监测。 此外，该系统实时地监测量，并且在新的化学气相沉积系统中实现相对便宜，或者添加到现有的化学气相沉积系统中。

公开(公告)号：US06490919B2

公开(公告)日：2002-12-10

申请号：US09851630

申请日：2001-05-09

申请人： Richard J. Bilinski ,  Juan Carlos Gonzales

发明人： Richard J. Bilinski ,  Juan Carlos Gonzales

IPC分类号： G01F2314

CPC分类号： G01F23/18

摘要： A well water level sensing apparatus using a pressurized air column in contact with the water at its distal end to derive a correlated value dependent upon the length of the air column which is converted for retrieving stored water levels from memory and displaying the retrieved water levels on a visual display. The water level sensing apparatus may be manually initiated or programmatically controlled for continual monitoring.

摘要翻译： 使用加压空气柱与其远端处的水接触的井水位感测装置来导出取决于空气柱的长度的相关值，所述相关值被转换以从存储器中检索存储的水位并且将回收的水位显示在 一个视觉显示。 可以手动启动或编程地控制水位感测装置以进行连续监视。

公开(公告)号：US06253781B1

公开(公告)日：2001-07-03

申请号：US09429874

申请日：1999-10-29

申请人： Ching-Lun Lee

发明人： Ching-Lun Lee

IPC分类号： G01F2314

CPC分类号： G01F23/165 ,  G01F23/14 ,  Y10T137/0379 ,  Y10T137/7303 ,  Y10T137/7313

摘要： The present invention provides a process for controlling the level of an ammonium fluoride-containing acid solution in an acid vessel. First, a tube provided with at least one hole in the sidewall is used as a high level sensing tube for the acid solution in the acid vessel. Then, an inert gas is blown into the high level sensing tube. The pressure of the inert gas is measured such that the acid solution is charged when the pressure is a first value and the acid solution is drained when the pressure is a second value larger than the first value. By means of the process of the present invention, when the bottom of the high level sensing tube is jammed with ammonium fluoride crystals and the acid solution level has not reached a level submerging the at least one hole, the inert gas can flow out via the at least one hole and the pressure measured is the first value. Thus, the period of time before the dummy wet station is shut down due to the accumulation of ammonium fluoride crystals on the high level sensing tube can be prolonged. Consequently, the usage time of the acid solution can be greatly lengthened, the frequency of changing acid can be decreased, and the frequency of the preventive maintenance of the dummy wet station can be decreased, thus increasing production efficiency.

摘要翻译： 本发明提供一种控制酸性容器中含氟化铵的酸溶液的含量的方法。 首先，在侧壁中设置有至少一个孔的管用作用于酸容器中的酸溶液的高级感测管。 然后，将惰性气体吹入高级感测管。 测量惰性气体的压力，使得当压力为第一值时酸性溶液被充入，并且当压力是大于第一值的第二值时酸溶液被排出。 通过本发明的方法，当高级感测管的底部被氟化铵晶体堵塞并且酸溶液水平未达到浸没至少一个孔的水平时，惰性气体可以经由 至少有一个孔，测得的压力是第一个值。 因此，可以延长由于在高电平感测管上积聚氟化铵晶体而在假湿站关闭之前的时间段。 因此，酸溶液的使用时间可以大大延长，可以降低酸的变化频率，并且可以减少假湿站的预防性维护的频率，从而提高生产效率。

公开(公告)号：US06826956B1

公开(公告)日：2004-12-07

申请号：US10663840

申请日：2003-09-17

申请人： Russell Van Mathews

发明人： Russell Van Mathews

IPC分类号： G01F2314

CPC分类号： G01F23/165

摘要： A system and method for method for measuring the vertical level of fluid in a container is provided. According to one aspect of the invention, a method for measuring the vertical level of fluid in a container includes moving air downward along the inside of a bubble tube at an angle of about 5 degrees to about 85 degrees from vertical into the fluid. According to another aspect, the method includes injecting a mixture of air and steam into fluid in a container via a bubble tube. Aspects of the present invention further provide a differential pressure bubbler system that includes a bubble tube mounted to a tank at an angle of about 5 degrees to 90 degrees. Aspects additionally provide a bubble tube having a diameter of about 1 inch to about 6 inches. Further aspects include a bubble tube having pressurized air and steam inputs.

摘要翻译： 提供了一种用于测量容器中的液体的垂直度的方法的系统和方法。 根据本发明的一个方面，一种用于测量容器中的液体的垂直度的方法包括沿气泡管的内部向下移动空气，其垂直方向与流体成大约5度至大约85度的角度。 根据另一方面，该方法包括通过气泡管将空气和蒸汽的混合物注入到容器中的流体中。 本发明的方面还提供一种差压起泡器系统，其包括以大约5度至90度的角度安装到罐的气泡管。 方面另外提供具有约1英寸至约6英寸的直径的气泡管。 另外的方面包括具有加压空气和蒸汽输入的气泡管。

公开(公告)号：US06763714B2

公开(公告)日：2004-07-20

申请号：US10296139

申请日：2002-11-21

申请人： Mario Molina ,  Antonio Pasquale

发明人： Mario Molina ,  Antonio Pasquale

IPC分类号： G01F2314

CPC分类号： G01F23/168

摘要： Method for controlling the level of a liquid (2) contained in at least one vessel (3), which comprises the following operative steps: inserting a measure tube (1) in the liquid (2); arranging an auxiliary duct (6; 21) inside or outside the vessel (3); measuring the pressure in said measure tube (1); measuring the pressure in said auxiliary duct (6; 21); determining the difference between the pressures in the measure tube (1) and in the auxiliary duct (6; 21); determining the value of the density or the specific weight of the liquid (2) in the vessel (3); dividing said pressure difference by said value of the density or specific weight of the liquid (2). The present invention also relates to an apparatus for carrying out said method.

摘要翻译： 用于控制包含在至少一个容器（3）中的液体（2）的水平的方法，其包括以下操作步骤：将测量管（1）插入液体（2）中; 在容器（3）的内部或外部布置辅助管道（6; 21）; 测量所述测量管（1）中的压力; 测量所述辅助管道（6; 21）中的压力; 确定测量管（1）和辅助管道（6; 21）中的压力之间的差异; 确定容器（3）中液体（2）的密度或比重的值; 将所述压差除以所述液体（2）的密度或比重值。 本发明还涉及一种用于执行所述方法的装置。

公开(公告)号：US06703635B2

公开(公告)日：2004-03-09

申请号：US09803206

申请日：2001-03-08

申请人： Takamasa Yashiro ,  Satoshi Mochizuki ,  Takaharu Yoshitomi

发明人： Takamasa Yashiro ,  Satoshi Mochizuki ,  Takaharu Yoshitomi

IPC分类号： G01F2314

CPC分类号： G01F23/0038 ,  G01F23/18 ,  Y10S250/90

摘要： For measurement of a liquid level, an optical fiber connected at its one end portion to force receiving means movably arranged in liquid to receive force from the liquid is dipped in the liquid together with the force receiving means, and a change in the force acting on said force receiving means when the liquid level changes is detected as a change in strain in the optical fiber by means of an optical fiber strain gauge connected to the other end of the optical fiber, thus measuring a water level of the liquid.

摘要翻译： 为了测量液位，连接在其一端部分上的强力接收装置以可移动的方式布置在液体中以接收液体的力的光纤与力接收装置一起浸入液体中，并且作用在其上的力的变化 当通过连接到光纤另一端的光纤应变计检测液位变化时的所述力接收装置作为光纤中的应变变化，从而测量液体的水位。