-
公开(公告)号：US4237730A
公开(公告)日：1980-12-09
申请号：US942865
申请日：1978-09-15
申请人： Chung L. Feng
发明人： Chung L. Feng
CPC分类号： G01F1/7084 , G01P5/18
摘要： A fluid velocity measurement system includes a thermal generation means operated for short durations of time and disposed within a conduit suitable for guiding at least a portion of a fluid whose velocity is to be determined. Disposed downstream in the fluid guide means is at least one of a first and second thermal sensing means. The sensing means are spaced from each other. The first and second thermal sensing means are differentially coupled. The time period starting with the thermal generation means being turned on and heating a slug of fluid and extending to the generation of a differential electrical signal from the sensing means detecting the heated slug of fluid is the flight time of the heated slug of fluid. In one embodiment of the invention circuitry is provided to measure the actual flight time and divide it into a predetermined period of time resulting in a quotient which is proportional to the fluid velocity. In another embodiment the flight time is measured by a count which is divided into a predetermined count which is equivalent to a quotient also proportional to the fluid velocity. Both embodiments further include means for receiving the quotient and converting it into an appropriate signal to operate a numerical display.
摘要翻译： 流体速度测量系统包括在短时间内操作的热产生装置，并且设置在适于引导速度要被确定的流体的至少一部分的导管内。 在流体引导装置中设置在下游的是第一和第二热感测装置中的至少一个。 感测装置彼此间隔开。 第一和第二热感测装置是差分耦合的。 从热产生装置开始的时间段开始并且加热流体块并且延伸到从感测装置产生差分电信号，检测加热的流体块是加热的流体块的飞行时间。 在本发明的一个实施例中，电路被提供以测量实际的飞行时间并将其分成预定的时间段，导致与流体速度成比例的商。 在另一个实施例中，飞行时间是通过计数来测量的，该计数被划分成等同于也与流体速度成比例的商的预定计数。 两个实施例还包括用于接收商并将其转换成适当信号以操作数字显示的装置。
-
92.发明授权Method and apparatus for measuring the flow speed and the gas volume proportion of a liquid metal stream 失效用于测量液态金属流的流速和气体体积比例的方法和装置
公开(公告)号：US4145924A
公开(公告)日：1979-03-27
申请号：US817029
申请日：1977-07-18
申请人： Stefan Muller
发明人： Stefan Muller
CPC分类号： G01F1/74 , G01F1/712 , G01N33/206 , G01P5/08 , G01P5/18 , G21C17/025
摘要： Method and apparatus for measuring the flow speed and the gas volume proportion of a stream of liquid metal wherein a magnetic probe is inserted into the stream of liquid metal and induces a first and second voltage according to Faraday's principle of induction in a first and second predetermined volume of the liquid metal stream, the time sequence of the first and second induction voltages due to speed fluctuations is detected as a measure for the flow speed by means of a first and second pair of electrodes at a known axial spacing L, the travel time .tau. of a predetermined volume of liquid metal from the first pair of electrodes to the second pair of electrodes is measured and the flow speed v = L/.tau. determined therefrom, and that the induction voltage, which decreases in magnitude with increasing gas volume proportion, is used as a measure for the gas volume proportion in the stream of liquid metal.
摘要翻译： 用于测量液态金属流的流速和气体体积比例的方法和装置，其中将磁性探针插入到液态金属流中，并根据法拉第原理的感应在第一和第二预定的范围内引入第一和第二电压 液体金属流的体积，由于速度波动引起的第一和第二感应电压的时间序列被检测为通过已知的轴向间隔L的第一和第二对电极的流速的测量，行进时间 测量从第一对电极到第二对电极的液体金属的预定体积的tau，并且由此确定流速v = L / tau，并且随着气体体积比例的增加而减小的感应电压， 用作液体金属流中气体体积比例的量度。
-
公开(公告)号：US4019038A
公开(公告)日：1977-04-19
申请号：US555250
申请日：1975-03-04
IPC分类号： G01F1/66 , G01F1/708 , G01F1/712 , G01P5/18 , G01P5/24 , G06F17/15 , G06G7/19 , G06J1/00 , G06F15/34
CPC分类号： G06G7/1935 , G01F1/667 , G01F1/7082 , G01F1/712 , G01P5/18 , G01P5/24 , G06F17/15 , G06J1/005
摘要： The speed of flow of a fluid is measured by transmitting across the flowing fluid upstream and downstream ultrasonic energy beams, transmitted beams, deriving electrical outputs therefrom, detecting the outputs to provide upstream and downstream detected signals representing noise imparted to the transmitted radiant energy beams by the flowing fluid, digitizing the detected signals, and imposing a time delay or delays on the upstream signal corresponding to the time delay between the upstream and downstream signals due to the spacing of the receiver means. A shift register imposes the time delay or delays and the transmission time of the shift register is controlled in response to the product of the signals.
摘要翻译： 流体的流速通过在上游和下游的超声能量束，传输光束，从其导出电输出之间传输流动流体来测量，检测输出以提供表示通过辐射能量束传递的噪声的上游和下游检测信号 流动的流体，对检测到的信号进行数字化，并且由于接收器装置的间隔，对与上游和下游信号之间的时间延迟相对应的上行信号施加时间延迟或延迟。 移位寄存器施加时间延迟或延迟，并且响应于信号的乘积来控制移位寄存器的传输时间。
-
公开(公告)号：US3820393A
公开(公告)日：1974-06-28
申请号：US9651170
申请日：1970-12-09
申请人： MC GUNIGLE R
发明人： MC GUNIGLE R
摘要： A correlation system for measuring the velocity of a signal. The principles are applicable to measure the time of flight of any signal. In a specific embodiment, a flowmeter for a fluid stream is described which measures the time of flight of a thermal pulse by correlation of generating and sensing signals. A heater pulse triggers a pulse of controllable duration which controls the polarity of an amplifier connected to a thermal sensor and whose integrated product is utilized to vary the duration of the positive pulse until a null average output is achieved. The control voltage drives a slave multivibrator, the integrated output of which is linearly related to flow and directly indicates the rate of flow of the fluid.
-
公开(公告)号：US3789663A
公开(公告)日：1974-02-05
申请号：US3789663D
申请日：1972-05-11
申请人： GOLD S
发明人： GOLD S
摘要： Apparatus for measuring the flow velocity of fluid within a conduit. Sensing means external to the conduit and responsive to changes in the configuration of the conduit surface upon passage of a vortex and associated with electrical means measure the time interval during which the detectable property of the fluid passes between a plurality of preselected locations on the conduit. Fluid flow is not obstructed by installation of the sensing means. Thus, flow measurements, at a plurality of locations along the conduit can be economically obtained.
摘要翻译： 用于测量管道内流体流速的装置。 传感装置在管道外部并且响应于涡流经过并与电气装置相关联的导管表面的构型的变化，测量流体的可检测特性在管道上的多个预选位置之间通过的时间间隔。 流体流动不会被安装感测装置所阻碍。 因此，可以经济地获得沿着导管的多个位置处的流量测量。
-
96.发明授权
公开(公告)号：US3558898A
公开(公告)日：1971-01-26
申请号：US3558898D
申请日：1966-10-03
申请人： BLOCK ENGINEERING
发明人： BLOCK MYRON J , ZACHOR ALEXANDER S
摘要： This invention is a flow measuring system using a pair of radiation detectors spaced from one another, and corresponding optical systems for imaging volume elements of a flow stream onto the radiation detectors. In one embodiment, the optical system is disposed to examine two separate volume elements spaced along the line of the flow stream. The radiation detectors provide electrical signals which are then time correlated. In another embodiment, the two optical systems have intersecting fields of view so as to examine a common volume element. One optical system s movable so that one can examine a series of common volume elements along a line substantially normal to the flow stream. The correlation of the signal from the two detectors in the latter embodiment permits measurement of the radiation profile across the flow stream.
-
公开(公告)号：US20240230702A9
公开(公告)日：2024-07-11
申请号：US18546806
申请日：2022-02-25
申请人： Bayer HealthCare LLC
发明人： William Barone , Ronald Brown , Curtis Pastor , Michael Swantner , Christopher Capone , Jaroslaw Wlodarczyk , Charles Lang
CPC分类号： G01P5/18 , A61M5/1452 , A61M5/365
摘要： A fluid injector system includes at least one injector for pressurizing and delivering at least one fluid from at least one fluid reservoir, at least one fluid path section in fluid communication with the at least one injector and having a predetermined index of refraction, and a first proximal sensor and a first distal sensor arranged along the at least one fluid path section. Each of the first proximal sensor and the first distal sensor includes an emitter configured to emit light through the at least one fluid path section, and a detector configured to receive the light emitted through the at least one fluid path section and generate an electrical signal based on the received light. The fluid injector system further includes at least one processor programmed or configured to determine, based on a difference in the electrical signals generated by the first proximal sensor and the first distal sensor, at least one property of a content of the at least one fluid path section.
-
公开(公告)号：US20240133911A1
公开(公告)日：2024-04-25
申请号：US18546806
申请日：2022-02-25
申请人： Bayer HealthCare LLC
发明人： William Barone , Ronald Brown , Curtis Pastor , Michael Swantner , Christopher Capone , Jaroslaw Wlodarczyk , Charles Lang
CPC分类号： G01P5/18 , A61M5/1452 , A61M5/365
摘要： A fluid injector system includes at least one injector for pressurizing and delivering at least one fluid from at least one fluid reservoir, at least one fluid path section in fluid communication with the at least one injector and having a predetermined index of refraction, and a first proximal sensor and a first distal sensor arranged along the at least one fluid path section. Each of the first proximal sensor and the first distal sensor includes an emitter configured to emit light through the at least one fluid path section, and a detector configured to receive the light emitted through the at least one fluid path section and generate an electrical signal based on the received light. The fluid injector system further includes at least one processor programmed or configured to determine, based on a difference in the electrical signals generated by the first proximal sensor and the first distal sensor, at least one property of a content of the at least one fluid path section.
-
公开(公告)号：US20180095104A1
公开(公告)日：2018-04-05
申请号：US15566181
申请日：2016-04-12
发明人： Gerhard Peters
摘要： Described is an ultrasonic anemometer (7) as well as a method for determination of at least one component of a wind velocity vector and/or a velocity of sound with at least one sound transducer at least temporarily working as a transmitter (1, 2, 3, 4, 5, 6, 15, 16) with a sound emission surface for emitting sound waves and at least one sound transducer at least temporarily working as a receiver (1, 2, 3, 4, 5, 6, 15, 16) with a sound detection surface for at least partially receiving the emitted sound waves, and with an evaluation unit, which, based on a recorded transit time, which the sound waves require on a measuring section located between the sound emission surface of the at least one transmitter and the sound detection surface of the at least one receiver to cover the distance of this measuring section, determines at least one component of a wind velocity vector and/or the velocity of sound.The technical solution described is characterized by at least one measuring section between a first sound emission surface of a first transmitter and a first sound detection surface of a first receiver being arranged approximately vertical to the earth's surface and the first sound emission surface and/or the first sound detection surface being inclined compared to the horizontal.
-
公开(公告)号：US20170307650A1
公开(公告)日：2017-10-26
申请号：US15518288
申请日：2015-06-24
发明人： Seok CHUNG , Jung Hyo YOON , Eun Doo LEE , Se Woon HAN , Jae Ho KIM , Young Kyu CHO , David LIM , Yong Hun JUNG , Seung Hun HONG
CPC分类号： G01P5/26 , G01F1/661 , G01F1/7086 , G01P3/366 , G01P5/18
摘要： An apparatus for measuring fluid speed by using the refraction of light is disclosed. The apparatus includes: a channel in which a passage is formed to allow the flow of a fluid; a first and a second light source that are located in any one region of an upper part and a lower part of the channel; a sensor installed in an opposite region of the region where the first and second light sources are located with respect to the channel, to receive the light emitted from the first and second light sources; a speed calculation unit configured to calculate a speed of the fluid by using the intensity of the light received at the sensor.
-
-
-
-
-
-
-
-
-
搜索结果
125 条记录 (耗时 0.015 秒)
