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1. 发明专利

JPH11271205A METHOD AND DEVICE FOR MEASURING VISCOSITY OF FLUID IN CONTAINER 失效
公开(公告)号：JPH11271205A
公开(公告)日：1999-10-05
申请号：JP2469299
申请日：1999-02-02
申请人： CALDON INC
发明人： HASTINGS CALVIN R , ESTRADA HERBERT , JOHNSON STEVEN J , MILLER ROBERT C , AUGENSTEIN DONALD R
IPC分类号： G01N29/02 , G01N11/00 , G01N29/032
摘要： PROBLEM TO BE SOLVED: To measure the viscosity of a fluid in a container in a simple structure. SOLUTION: A device and a method for measuring the viscosity of a fluid in a container, including a pipe 12, is provided. The device 10 includes a transmitting means 14 for transmitting a signal to the fluid in the container. The transmitting means 14 is put in contact with the container 12 to provide a signal to the fluid in the container 12. The device 10 includes a receiving means 16 for receiving a signal passing through the fluid. The receiving means 16 is put in contact with the container 12 to receive a signal from the fluid in the container. The device 10 includes a measuring means 15 for determining the fluid in the container from the signal passing through the fluid and measuring the viscosity of the fluid from amplitude and sound velocity. The measuring means 15 is connected to the receiving means 16. The above method includes the step of transmitting a signal to the fluid, followed by the step of receiving the signal passing through the fluid, the step of measuring the attenuation of the signal when the signal moves in the fluid and the step of finding the viscosity of the fluid in the container from the attenuation and propagation time of the signal, in sequence.

2. 发明专利

JP2000221099A TEMPERATURE COMPENSATION IN AUTOMATIC LEAKAGE DETECTION 失效
公开(公告)号：JP2000221099A
公开(公告)日：2000-08-11
申请号：JP2000019726
申请日：2000-01-28
申请人： CALDON INC
发明人： HASTINGS CALVIN R , AUGENSTEIN DONALD R , ESTRADA HERBERT
IPC分类号： G01M3/26 , G01M3/24 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To compensate temperature effect against pressure without requiring direct measurement of temperature by providing a pressure sensor sensing reflection of pulse in a pipe, and judging whether fluid pressure in the pipe displaces in the negative direction or not by the estimated value from pressure- temperature relation of the fluid in the pipe. SOLUTION: A device 10 detecting leakage of the isolated part of a pipe for known fluid is provided with a pressure generating part 16 generating pressure pulse, a sensing part 18 sensing pressure pulse in the pipe, and a pressure sensor 20 sensing pressure in the pipe. Further, the device 10 is provided with a judging part 22 for detecting whether the fluid pressure in the pipe is displaced on the negative side from the estimated value from the pressure-temperature relation of the fluid. The sensing part 18 measures the moving time of pulse to measure propagating speed, computes pressure change generated between the time (t1) and (t2), and measures the propagating speed from the moving time of pressure pulse. Further, the judging part 22 computes the pressure change quantity due to temperature change and the pressure change quantity due to the present leak source.

4. 发明专利

MXPA03002073A RODAJA Y METODO. 未知
公开(公告)号：MXPA03002073A
公开(公告)日：2005-04-11
申请号：MXPA03002073
申请日：2003-03-10
申请人： CALDON INC
发明人： LAIRD CHRISTOPHER B
IPC分类号： G10K11/00 , G01M3/24 , G01M3/28
摘要： Una rodaja para colocarse en un tubo. La rodaja incluye un alojamiento que tiene una superficie exterior y un orificio adaptado para permitir que el fluido que fluye en el tubo pase a traves del alojamiento. El alojamiento tiene por lo menos un primer puerto que se extiende dentro del alojamiento desde la superficie exterior para contener un primer transductor acustico. La rodaja incluye medios para fijar el alojamiento al tubo. Un metodo para obtener informacion acerca del fluido dentro de un tubo.

5. 发明专利

CA2335723C APPARATUS FOR DETERMINING FLUID FLOW 未知
公开(公告)号：CA2335723C
公开(公告)日：2004-05-25
申请号：CA2335723
申请日：1993-10-05
申请人： CALDON INC
发明人： MILLER ROBERT C , HAUSER ERNEST M , HASTINGS CALVIN R
IPC分类号： G01F1/00 , G01F1/66
摘要： An apparatus for creating a transverse velocity profile of fluid flowing in a pipe which includes a mechanism in communication with the pipe for obtaining the transverse velocity of the fluid at several different locations by introducing energy into the pipe and analyzing that energy in the pipe. The transverse velocity profile is then formed from the transverse velocity obtained at the several locations. The acoustic energy can be provided along a plurality of diametrical paths in the pipe all of which are in a cross- section of the pipe producing an information signal corresponding to the transverse velocities obtained with a signal processor receiving the information signals and determining the associated transverse velocities.

6. 发明专利

CA2271502C APPARATUS FOR MEASURING THE TEMPERATURE OF A FLUID FLOW 未知
公开(公告)号：CA2271502C
公开(公告)日：2001-12-18
申请号：CA2271502
申请日：1993-10-05
申请人： CALDON INC
发明人： HASTINGS CALVIN R , HAUSER ERNEST M , MILLER ROBERT C
IPC分类号： G01F1/68 , G01H5/00 , G01K13/02
摘要： An apparatus for measuring temperature of a flowing fluid in a pipe. The apparatus includes a mechanism for actively testing the flowing fluid with acoustic energy and producing a test signal corresponding to the temperature of the fluid. The testing mechanism is disposed on the outside of the pipe and acoustic energy follows a path through the pipe wall. Additionally, the apparatus includes a signal processing mechanism for determining the temperature of the fluid based on the test signal. The testing mechanism is in communication with the signal processing mechanism.

7. 发明专利

ES2366393T3 DETERMINACION DE LA VISCOSIDAD DE UN FLUIDO EN UN RECIPIENTE. 未知
公开(公告)号：ES2366393T3
公开(公告)日：2011-10-19
申请号：ES99300609
申请日：1999-01-27
申请人： CALDON INC
发明人： HASTINGS CALVIN R , ESTRADA HERBERT , JOHNSON STEVEN J , MILLER ROBERT C , AUGENSTEIN DONALD R
IPC分类号： G01N29/02 , G01N11/00 , G01N29/032
摘要： APARATO PARA DETERMINAR LA VISCOSIDAD DE UN FLUIDO EN UN RECIPIENTE (TAL COMO UNA TUBERIA). EL APARATO COMPRENDE UN MECANISMO PARA TRANSMITIR UNA SEÑAL AL INTERIOR DE UN FLUIDO EXISTENTE EN UN RECIPIENTE. EL MECANISMO TRANSMISOR HACE CONTACTO CON EL RECIPIENTE Y PROPORCIONA LA SEÑAL AL FLUIDO QUE HAY EN EL MISMO. EL APARATO COMPRENDE UN MECANISMO PARA RECIBIR LA SEÑAL UNA VEZ QUE ESTA HA PASADO A TRAVES DEL FLUIDO. EL MECANISMO RECEPTOR ESTABLECE CONTACTO CON EL RECIPIENTE Y RECIBE LA SEÑAL DEL FLUIDO QUE HAY EN EL MISMO. EL APARATO COMPRENDE UN MECANISMO PARA DETERMINAR EL FLUIDO QUE HAY EN EL RECIPIENTE A PARTIR DE LA SEÑAL UNA VEZ QUE ESTA HA PASADO A TRAVES DEL FLUIDO, ASI COMO DETERMINAR LA VISCOSIDAD DEL FLUIDO A PARTIR DE LA AMPLITUD Y DE LA VELOCIDAD DEL SONIDO. EL MECANISMO DE DETERMINACION ESTA CONECTADO AL MECANISMO RECEPTOR. EL PROCEDIMIENTO COMPRENDE LOS PASOS CONSISTENTES EN TRANSMITIR UNA SEÑAL AL FLUIDO. DESPUES TIENE LUGAR EL PASO DE RECIBIR LA SEÑAL UNA VEZ QUE HA PASADO ATRAVES DEL FLUIDO. SEGUIDAMENTE TIENE LUGAR LA DETERMINACION DE LA ATENUACION DE LA SEÑAL AL PASAR ESTA A TRAVES DEL FLUIDO. POSTERIORMENTE EXISTE EL PASO DE HALLAR LA VISCOSIDAD DEL FLUIDO DEL RECIPIENTE A PARTIR DE LA ATENUACION DE LA SEÑAL Y EL TIEMPO DE TRANSITO.

8. 发明专利

CA2459707A1 APPARATUS FOR DETERMINING FLUID FLOW 未知
公开(公告)号：CA2459707A1
公开(公告)日：1994-04-07
申请号：CA2459707
申请日：1993-10-05
申请人： CALDON INC
发明人： HAUSER ERNEST M , HASTINGS CALVIN R , MILLER ROBERT C
IPC分类号： G01F1/66
摘要： An apparatus for determining a period of time of an acoustic wave in a fluid in a pipe where the wave is provided to the fluid from the outside of the pipe an d a signal is obtained corresponding to when the wave has traversed the pipe and the fluid therein, and signal processing means measures the period of time the wave is in the fluid based on the signal, the signal processing means being in communication with means providing the acoustic wave. Also disclosed is a method and apparatus for determining soun d velocity of fluid flowing in a pipe comprising transmitting acoustic energy into the flu id flowing in the pipe such that the energy takes a path through the pipe, receiving the acoustic energy after it passes out of the fluid, measuring the time the energy takes to pas s through the fluid, and identifying sound velocity of the fluid from the time measured. T he apparatus also allows determination of the temperature of the fluid.

9. 发明专利

CA2271502A1 APPARATUS FOR MEASURING THE TEMPERATURE OF A FLUID FLOW 未知
公开(公告)号：CA2271502A1
公开(公告)日：1994-04-07
申请号：CA2271502
申请日：1993-10-05
申请人： CALDON INC
发明人： HAUSER ERNEST M , MILLER ROBERT C , HASTINGS CALVIN R
IPC分类号： G01F1/68 , G01H5/00 , G01K13/02
摘要： An apparatus for determining the flow rate of a fluid in a pipe. The apparatus includes a device for providing acoustic energy on a diagonal path through the fluid. The diagonal providing device is in contact with the pipe. The apparatus also includes a device for providing acoustic energy on a diametrical path through the fluid. The diametrical providing device is in contact with the pipe. The apparatus is also comprised of a device for determining the flow of fluid in the pipe based on the acoustic energy of the diagonal providing device and the acoustic energy of the diametrical providing device. In one embodiment, the diagonal providing device is fixedly disposed on the pipe. In another embodiment, the diametrical providing device provides acoustic energy emitted in both directions on the diametrical path. The diagonal providing device preferably includes a first transducer and a second transducer located at diametrically opposed positions about the pipe. The first transducer and second transducer are preferably adapted to alternatively function as transmitter and receiver so as to cause ultrasonic signals to travel through the fluid along the diametric path. The diametrical providing device preferably includes a third transducer and a fourth transducer located at diagonally opposed upstream and downstream positions relative to one another. The third transducer and the forth transducer are preferably adapted to alternatively function as a transmitter and receiver so as to cause ultrasonic signals to travel through the fluid alternatively in upstream and downstream directions along the diagonal path between the third transducer and the fourth transducer. The diametric path is adjacent to the diagonal path so that the transducers are sampling the same portion of fluid.

10. 发明专利

CA2107750A1 Apparatus for Determining Fluid Flow 未知
公开(公告)号：CA2107750A1
公开(公告)日：1994-04-07
申请号：CA2107750
申请日：1993-10-05
申请人： CALDON INC
发明人： HASTINGS CALVIN R , HAUSER ERNEST M , MILLER ROBERT C
IPC分类号： G01F1/66 , G01K11/24 , G01N9/24 , G01N11/04 , G01N29/032 , G01P5/24
摘要： An apparatus (10) for measuring the temperature of a flowing fluid (11) in a pipe (12) characterized by: means (14, 16) for actively testing the flowing fluid (11) with acoustic energy and producing a test signal corresponding to the temperature of the fluid (11), said testing means (14, 16) disposed on the outside of the pipe (12) and acoustic energy follows a path through the pipe wall; and signal processing means (26) for determining the temperature of the fluid (11) based on the test signal, said testing means (14, 16) in communication with said signal processing means (26).

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