WO2015143613A1 - 一种科里奥利质量流量计的测量状态监测方法及装置 - Google Patents
一种科里奥利质量流量计的测量状态监测方法及装置 Download PDFInfo
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- WO2015143613A1 WO2015143613A1 PCT/CN2014/073978 CN2014073978W WO2015143613A1 WO 2015143613 A1 WO2015143613 A1 WO 2015143613A1 CN 2014073978 W CN2014073978 W CN 2014073978W WO 2015143613 A1 WO2015143613 A1 WO 2015143613A1
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- coriolis mass
- permanent magnet
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- 238000005259 measurement Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 230000000694 effects Effects 0.000 claims abstract description 14
- 230000010363 phase shift Effects 0.000 claims description 12
- 238000012806 monitoring device Methods 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000004088 simulation Methods 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000004364 calculation method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 5
- 238000012795 verification Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8436—Coriolis or gyroscopic mass flowmeters constructional details signal processing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
Definitions
- the invention relates to the field of monitoring of a flow meter, and particularly relates to a method and a device for monitoring the measurement state of a Coriolis mass flow meter.
- Coriolis mass flow meter (hereinafter referred to as mass flow meter) is a meter that can directly measure the mass flow of liquid. It is widely used in various fields of national production. In order to ensure the accuracy and reliability of the mass flowmeter measurement data, the general practice is to perform periodic calibration.
- the verification period of the mass flowmeter specified in the Regulations of the People's Republic of China for Metrological Verification is 0.5 years/second and 2 years. / Times, whether the actual measurement status of the qualified instrument in the actual engineering application can be guaranteed, only when the verification validity period is over, it can be accurately judged back to the verification device. At present, it is not possible to quickly make an accurate online judgment.
- the on-site working conditions are complex, and there are many factors affecting the measurement accuracy of the flowmeter.
- the installation of the flowmeter, the failure of the flow sensor, and the influence of the external environment (impact, vibration) will measure the flowmeter. Make an impact.
- the measurement state of the flowmeter is difficult to judge.
- the current general judgment method is to detach the flowmeter from the pipeline and perform manual calibration in the laboratory to determine whether the flowmeter is in an abnormal working state. This method is mature and accurate, but it consumes a lot of manpower, material resources and financial resources, which increases the parking time of equipment and seriously affects production efficiency.
- the calibration fee for each quality flowmeter put into use in China every year is 2,000 to 3,000 yuan.
- the monitoring method proposed by the invention can effectively monitor the measurement state of the flowmeter, and the monitoring flowmeter does not need to be detached from the pipeline, and the monitoring process is convenient and fast. Czech.
- the US Micro Motion Corporation's patents CN 1860350A and CN 101622519A propose an online diagnostic method and system for vibrating pipes.
- the main basis for diagnosis is the variation of the vibration pipe stiffness during the operation of the flow meter, There is a lack of consideration for the effects of fluids in the flow vibrating conduit.
- the object of the present invention is to propose a new measurement state monitoring method and device for a Coriolis mass flowmeter, which solves the technical problem of wasting time and wasting manpower, material resources and financial resources caused by traditional offline monitoring.
- a method for monitoring a measurement state of a Coriolis mass flow meter which is characterized by the following steps:
- the first analog drive coil with symmetry about the axis of vibration of the vibrating tube is fixed at the position of the equivalent driving force F determined on the vibrating tube according to step 1]
- the permanent magnet and the second analog drive coil are fixed to the corresponding positions of the outer casing of the Coriolis mass flow meter such that the first permanent magnet extends into the interior of the first analog drive coil, and the second permanent magnet extends into the interior of the second analog drive coil;
- one of the vibrating tubes is fixed with a first analog driving coil symmetrically about the axis of the vibration tube, and an equivalent driving force F is determined according to the step 1]
- the second permanent magnet is fixed on the other vibration tube. a permanent magnet extends; an analog drive coil interior, the second permanent magnet extends into the interior of the second analog drive coil;
- the output of the flow transmitter provides a normal working drive signal for the Coriolis mass flow meter, and the output of the flow transmitter is sequentially connected to the first analog drive through a phase shifting circuit, an amplitude control circuit, and a power amplifying circuit. a coil and a second analog drive coil;
- the phase shift circuit includes an operational amplifier, a feedback resistor R1, a resistor R2, a resistor Rx, and a capacitor c.
- the positive input terminal of the operational amplifier is connected to the output of the flow transmitter through the resistor Rx.
- the positive input terminal of the operational amplifier is grounded through the capacitor c.
- the negative input terminal of the operational amplifier is connected to the output of the flow transmitter through the resistor R2.
- the negative input terminal of the operational amplifier is also connected to the output terminal of the operational amplifier through the feedback resistor R1, and the output of the operational amplifier is connected.
- the input to the amplitude control circuit is also connected to the output terminal of the operational amplifier through the feedback resistor R1, and the output of the operational amplifier is connected.
- the power amplifying circuit comprises a triangular wave generator, a sine wave synthesizer, a comparator circuit, a bridge output stage circuit and a low pass filter circuit, and the output of the triangular wave generator and the sine wave synthesizer is connected to The input end of the comparator circuit, the output end of the comparator circuit is connected to the low-pass filter circuit through the bridge output stage circuit, and the output of the low-pass filter circuit is respectively connected to the first drive analog coil and the second drive analog coil, and the sine wave synthesizer is connected The output of the amplitude control circuit.
- the amplitude control circuit comprises a filter circuit and a potentiometer which are sequentially connected in series at the output end of the phase shift circuit, and the output of the potentiometer is connected to the input of the sine wave synthesizer.
- a measurement state monitoring device for a Coriolis mass flowmeter which is special in that: an application device including an equivalent driving force F, the effect of the equivalent driving force F is the same as that of the Coriolis force Fc, etc.
- the apparatus for applying the equivalent driving force F includes a first analog driving coil, a second analog driving coil, a first permanent magnet, a second permanent magnet, a phase shifting circuit, an amplitude control circuit, and a power amplifying circuit;
- the Coriolis mass flowmeter has a first analog drive coil and a second permanent magnet fixed symmetrically about the vibration tube, and the first permanent magnet and the second analog drive coil are fixed on the Coriolis mass flowmeter.
- the relative position of the outer casing causes the first permanent magnet to protrude into the interior of the first analog drive coil, and the second permanent magnet extends into the interior of the second analog drive coil;
- the double tube type Coriolis mass flowmeter one of the vibrations a first analog driving coil and a second permanent magnet symmetrically symmetric about the vibration tube are fixed on the tube, and the first permanent magnet and the first fixed magnet are fixed at the relative positions of the other vibration tube
- Two analog drive coils the first permanent magnet extends into the interior of the first analog drive coil, and the second permanent magnet extends into the interior of the second analog drive coil
- one output of the flow transmitter is coupled to the drive coil of the vibration sensor to provide a normal operating drive
- the signal, the other output of the flow transmitter is sequentially connected to the first analog driving coil and the second analog driving coil through a phase shifting circuit, an amplitude control circuit, and a power amplifying circuit, respectively, the first analog driving coil and the second analog driving coil
- the input signal is connected in the opposite direction.
- the phase shifting circuit includes an operational amplifier, a feedback resistor R1, a resistor R2, a resistor Rx, and a capacitor c.
- the positive input terminal of the operational amplifier is connected to the output of the flow transmitter through the resistor Rx, and the positive input terminal of the operational amplifier is grounded through the capacitor c.
- the negative input of the amplifier is connected to the output of the flow transmitter through a resistor R2.
- the negative input of the operational amplifier is also connected to the output of the operational amplifier through a feedback resistor R1, and the output of the operational amplifier is connected to the input of the amplitude control circuit.
- the power amplifying circuit comprises a triangular wave generator, a sine wave synthesizer, a comparator circuit, a bridge output stage circuit and a low pass filter circuit, wherein the output of the triangular wave generator and the sine wave synthesizer is connected to the input end of the comparator circuit, The output end of the circuit is connected to the low-pass filter circuit through the bridge output stage circuit, and the output of the low-pass filter circuit is respectively connected to the first drive analog coil and the second drive analog coil, and the sine wave synthesizer is connected to the output of the amplitude control circuit.
- the amplitude control circuit includes a filter circuit and a potentiometer connected in series at the output end of the phase shifting circuit, and the output of the potentiometer is connected to the input of the sine wave synthesizer.
- the invention has the advantages that: the method and the device of the invention can well serve the regular inspection and maintenance of the mass flowmeter, can effectively monitor the measurement state of the flowmeter, and improve the online monitoring efficiency of the mass flowmeter, and operate Workers can quickly determine whether the flowmeter is in an abnormal working state on the spot.
- the monitoring process is convenient and fast, avoiding unnecessary disassembly costs, unreliable problems caused by offline reloading, and influences of installation stress, reducing monitoring costs, saving manpower and material resources. Actually There are significant engineering implications in use.
- FIG. 1 is a schematic view of a modified double c-tube Coriolis mass flowmeter sensor according to the present invention; wherein 101 and 201 are respectively two vibration tubes of the flow meter; 102 and 202 are respectively a first permanent magnet and a first analog driving coil; 104 and 204 are the second analog drive coil and the second permanent magnet; 103 and 203 are the left detection coil and the left permanent magnet, 105 and 205 are the right permanent magnet and the right detection coil; 106 and 206 are the drive coils of the vibration tube; And drive the permanent magnet.
- Figure 2a is a vibration diagram of the mass flowmeter flow tube
- Figure 2b is a deflection diagram of the mass flowmeter flow tube
- Figure 3a is a schematic diagram of liquid flow of a double C-tube mass flow meter
- Figure 3b is a schematic diagram of the vibration force distribution of the double C-shaped tube mass flowmeter
- FIG. 4 is a schematic block diagram of a monitoring device in the present invention.
- Figure 5 shows the transfer of various parameters during the operation of the mass flow meter
- Figure 6 is a phase shift circuit diagram designed in the present invention.
- Fig. 7 is a basic topology of a power amplifying circuit in the present invention.
- the basic principle of mass flow meter measurement is the Coriolis effect of the liquid in the vibrating tube.
- the drive coil 106 of the own vibrating tube interacts with the drive permanent magnet 206 to apply a driving force to the vibrating tube to vibrate the vibrating tube at a certain frequency.
- the points on the vibrating tube vibrate in the same phase, as shown in Figure 2a.
- the vibrating tube is subjected to the Coriolis force generated by the liquid (Fc in Fig. 2b), and the Coriolis force causes the vibrating tube to produce different phases at various points, as shown in Fig. 2b.
- the AC section and the BD section are subjected to the same Coriolis force in the opposite direction (eg The Fc direction shown in Figure 2b).
- the left detecting coil 103 and the right detecting coil 205 are placed at two different points on both sides of the driving coil 106 with respect to the axis of symmetry for detecting the vibration signals of the two points.
- the phase difference ⁇ t of the two signals received from the left detecting coil 103 and the right detecting coil 205 is calculated in unit time.
- the phase difference of the signal between the two detection coils is proportional to the mass flow rate of the liquid flowing through the vibration tube.
- gP : q m KA t
- K is the meter factor of the flow meter, which is the basic formula for mass flow meter to measure mass flow.
- the essence of flow measurement is that the Coriolis force is generated when the liquid passes through the pipe, and the Coriolis force in the opposite direction on both sides of the pipe causes the pipe to be twisted and deformed.
- the equivalent driving force F instead of the Coriolis force Fc generated by the liquid through the pipe, it is ensured that the equivalent driving force F and the Coriolis force Fc have the same effect, and the liquid can be realized without flowing the liquid.
- the phase difference is generated on both sides of the sensor vibrating tube, and the flow transmitter displays the mass flow value when the liquid flows through uninterrupted detection and calculation. If it is possible to further determine the correspondence between the magnitude of the applied equivalent driving force F and the assumed liquid flow value, by changing the magnitude of the equivalent driving force F, the flow value q m ' displayed by the transmitter is compared with the assumed flow rate. The difference between the two can be used to monitor the operating state of the flow meter without the liquid.
- the monitoring process of the Coriolis mass flow meter and the transfer of the various parameters can be illustrated by the flow of Figure 5.
- the present invention includes the following steps:
- a method for monitoring a measurement state of a Coriolis mass flow meter comprising the following steps: 1] selecting and recording 5-10 flow values qm dispersed in the Coriolis mass flow meter range ; The flow rate value, respectively, determines the action position and action direction of the measured liquid of each flow value on the equivalent driving force F of the Coriolis force Fc generated by the Coriolis mass flowmeter vibrating tube, and calculates and records the equivalent driving force F size;
- step 1 Apply the equivalent driving force F corresponding to a certain water flow value to the vibrating tube of the Coriolis mass flowmeter for a total of N times, 5 N 2 , and record the display of each display instrument.
- value q m ' find the average value of q m ' ⁇ 7, if the value of -100% is less than 1%, continue to judge its q flow value, : 100% of the value is less than 1%, if each flow value ,
- step 1 the determination of the action position, action direction and size of the equivalent driving force F can be achieved by the following two methods: A. Theoretical calculation; B. Pre-line simulation. A. Theoretical calculation
- ⁇ is the angle between the direction of the angular velocity ⁇ and the direction of the liquid flow velocity in the pipe, as shown in Fig. 3a, the length of the vibrating pipe through which the liquid flows during the time interval, and the mass of the segment liquid is dm,
- L is the length of the straight pipe segment and R is the radius of the pipe segment.
- d is the distance from the point of action of the equivalent driving force to the axis of symmetry of the C-tube (dotted line in Figure 3a).
- the required dimensional parameters can be obtained by reference to the factory specification or directly measured to determine the equivalent driving force F. size.
- the method of calculating the equivalent driving force F by integrating the Coriolis force moment is the method adopted by the present invention, and other methods of converting the Coriolis force into the equivalent driving force can also be employed.
- the driving force of the simulated Coriolis force may be plural.
- the application position may be in the curved pipe section in which the Coriolis force acts, or in the straight pipe section in which the Coriolis force is applied, and the specific application is performed.
- the invention adopts the main vibration driving signal with the vibration angular velocity of ⁇ as the driving modulation signal source of the equivalent driving force, and the equivalent driving force vibration phases on both sides are opposite.
- Other methods that produce equivalent driving forces for cyclical alternation can also be used.
- the first analog drive coil with respect to the axis of symmetry of the vibrating tube is fixed at the position of the equivalent driving force F determined on the vibrating tube according to step 1] a second permanent magnet, the first permanent magnet and the second analog drive coil are fixed on the outer casing of the Coriolis mass flowmeter, the first permanent magnet extends into the interior of the first analog drive coil, and the second permanent magnet extends into the second simulation Driving the inside of the coil;
- one of the vibrating tubes is fixed at the position corresponding to the axis of symmetry of the vibration tube according to the equivalent driving force F determined according to the step 1]
- An analog drive coil and a second permanent magnet are fixed on the other vibration tube with a first permanent magnet and a second analog drive coil symmetrically about the vibration tube, and the first permanent magnet extends into the first analog drive coil, The second permanent magnet extends into the interior of the second analog drive coil; the combination of the permanent magnet and the drive coil
- N the coil winding number
- B the magnetic field strength of the permanent magnet
- I the current passed through the coil size
- L the length of the current supply conductor
- the output of the flow transmitter provides a normal working drive signal for the Coriolis mass flowmeter, and the drive output signal of the flow transmitter is sequentially connected to the first phase through the phase shifting circuit, the amplitude control circuit, and the power amplifying circuit.
- the principle block diagram of the monitoring device of the Coriolis mass flowmeter of the present invention is shown in Fig. 4.
- the device for applying the equivalent driving force F has the same effect as the Coriolis force Fc.
- the apparatus for applying the equivalent driving force F includes a first analog driving coil, a second analog driving coil, a first permanent magnet, a second permanent magnet, a phase shifting circuit, a power amplifying circuit, and an amplitude control circuit;
- the Rioli mass flowmeter has a first analog drive coil and a second permanent magnet fixed symmetrically about the vibration tube, and the first permanent magnet and the second analog drive coil are fixed to the Coriolis mass flowmeter.
- the first permanent magnet extends into the interior of the first analog drive coil
- the second permanent magnet extends into the interior of the second analog drive coil
- one of the vibrating tubes is fixed a first analog drive coil and a second permanent magnet symmetrically symmetric about the vibration tube, and a first permanent magnet and a second analog drive coil symmetrically symmetric about the vibration tube, the first permanent magnet is fixed on the other vibration tube Extending into the interior of the first analog drive coil, the second permanent magnet extends into the interior of the second analog drive coil
- the drive output of the flow transmitter is driven by the vibration sensor
- the coil provides a driving signal for normal operation, and the signal output is sequentially connected to the first analog driving coil and the second analog driving coil through a phase shifting circuit, an amplitude control circuit, and a power amplifying circuit, respectively, the first analog driving coil and the second analog
- the input signals of the drive coils are connected in opposite directions to ensure that the sides of the vibrating tube are properly simulated by the opposite Coriolis
- the first permanent magnet 102 and the second analog driving coil 104 are respectively fixed at the midpoints of the two curved pipe segments on one of the vibrating tubes 101 of the double C-tube Coriolis mass flowmeter, and the other is
- the first analog driving coil 202 and the second permanent magnet are respectively fixed at the midpoints of the two curved pipe sections of the vibrating pipe 201 Iron 204, as shown in Figure 1.
- the first permanent magnet and the second permanent magnet are fixed by the permanent magnet bracket; the first analog driving coil and the second analog driving coil are fixed by the coil bracket, and the permanent magnet bracket and the coil bracket are welded on the respective vibrating tubes, and other reliable The fixing method; the welding of the permanent magnet bracket and the coil bracket is maintained during welding, so that the mass of the two vibrating pipes can be balanced.
- a first analog drive coil and a second permanent magnet symmetrically symmetric about the vibration tube are fixed at the position of the equivalent driving force F determined on the vibration tube according to the step 1]
- the first permanent magnet and the second analog drive coil are fixed to the outer casing of the Coriolis mass flowmeter, the first permanent magnet extends into the interior of the first analog drive coil, and the second permanent magnet extends into the interior of the second analog drive coil.
- the vibration frequency and the vibration phase of the first analog drive coil and the second analog drive coil are controlled to be generated by the first analog drive coil and the second analog drive coil.
- the equivalent driving force F can be the same as the frequency and phase of the Coriolis force generated by the actual liquid; secondly, the amplitude of the equivalent driving force F is accurately controlled, and the current of the applying device that controls the equivalent driving force F is further controlled.
- the input signals of the driving signals of the first analog driving coil and the second analog driving coil are directly introduced by the driving signal of the vibrating tube, and the driving signal of the vibrating tube and the signal of the applying device of the equivalent driving force F are ensured at the vibration frequency. Consistent.
- the drive signal of the flow transmitter has a phase deviation from the Coriolis force, and the device of the present invention moves the phase through the phase shift circuit, as shown in FIG.
- the function of the phase shifting circuit is to produce a fixed phase offset of the drive signal to conform to the phase relationship of the vibrating tube drive signal and the Coriolis force.
- the phase shifting circuit of the present invention comprises an operational amplifier, a feedback resistor R1, a resistor R2, a resistor Rx, a capacitor c, an operational amplifier
- the positive input terminal is connected to the output of the flow transmitter through the resistor Rx.
- the positive input terminal of the operational amplifier is grounded through the capacitor c.
- the negative input terminal of the operational amplifier is connected to the output of the flow transmitter through the resistor R2, and the negative input terminal of the operational amplifier is further The output terminal of the operational amplifier is connected through a feedback resistor R1, and the operational amplifier outputs a phase-shifted voltage signal to the amplitude control circuit.
- Other phase shifting circuits that meet the requirements can also be used.
- the amplitude control circuit includes a filter circuit and a potentiometer which are sequentially connected in series at the output end of the phase shift circuit, and the output of the potentiometer is connected to the input of the sine wave synthesizer.
- the amplitude control circuit is for controlling the magnitude of the current in the first drive analog coil and the second drive analog coil.
- the power amplifying circuit comprises a triangular wave generator, a sine wave synthesizer, a comparator circuit, a bridge output stage circuit and a low pass filter circuit, and an output of the triangular wave generator and the sine wave synthesizer is connected to an input end of the comparator circuit, the comparator The output end of the circuit is connected to the low-pass filter circuit through the bridge output stage circuit, and the output of the low-pass filter circuit is respectively connected to the first drive analog coil and the second drive analog coil, and the sine wave synthesizer of the power amplifier circuit is connected to the amplitude control circuit. Output.
- the function of the power amplifying circuit is to improve the driving ability of the driving system to the vibrating tube, and its basic topology is shown in FIG. The monitoring accuracy of the present invention is verified below:
- the unit of the table below is kg/h.
- the first drive analog coil turns and the first drive analog coil have a number of turns of 159 ⁇ , a resistance of 11.2 ⁇ , a wire diameter of 9.6 mm, and a permanent magnet magnetic field strength of 3200 Gs.
- Applied current I error theoretical flow q m theoretical applied force F shows flow q m '
- the monitoring error of the test results is within 1%, indicating that the monitoring device is used to judge that the Correol mass flowmeter is in normal working condition.
- the method and apparatus can realize on-line monitoring of the working state of the Coriolis mass flow meter.
- the monitoring error of the test results is within 1%, indicating that the Coriolis mass flowmeter monitored by the monitoring device of the present invention is in a normal working state. Therefore, the monitoring method and monitoring device can be used for online monitoring of the working state of the Coriolis mass flow meter.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201480006429.XA CN104981684B (zh) | 2014-03-24 | 2014-03-24 | 一种科里奥利质量流量计的测量状态监测方法及装置 |
RU2015151900A RU2656294C2 (ru) | 2014-03-24 | 2014-03-24 | Способ и устройство для отслеживания состояния измерения кориолисового массового расходомера |
PCT/CN2014/073978 WO2015143613A1 (zh) | 2014-03-24 | 2014-03-24 | 一种科里奥利质量流量计的测量状态监测方法及装置 |
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CN107131905B (zh) * | 2016-02-26 | 2021-07-27 | 高准公司 | 检测两个或更多计量组件 |
KR20200063992A (ko) * | 2018-11-28 | 2020-06-05 | 가부시끼 가이샤 구보다 | 수확기 및 유량 산출 방법 |
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BRPI0318552B1 (pt) * | 2003-10-22 | 2016-05-31 | Micro Motion Inc | aparelhos e métodos de diagnóstico para um medidor de fluxo coriolis |
CN102128666B (zh) * | 2011-02-11 | 2012-08-08 | 合肥工业大学 | 一种科里奥利质量流量计的标定方法 |
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2014
- 2014-03-24 RU RU2015151900A patent/RU2656294C2/ru active
- 2014-03-24 CN CN201480006429.XA patent/CN104981684B/zh active Active
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US5773727A (en) * | 1994-10-18 | 1998-06-30 | Fuji Electric Co., Ltd. | Mass flow meter |
CN1701217A (zh) * | 2000-07-21 | 2005-11-23 | 微动公司 | 一种用于校准Coriolis流量计的驱动信号的系统 |
US20060058971A1 (en) * | 2004-09-15 | 2006-03-16 | Paul Logue | Coriolis flowmeter |
EP2386838A1 (en) * | 2010-05-13 | 2011-11-16 | Yokogawa Electric Corporation | Coriolis flow meter |
CN101840212A (zh) * | 2010-05-27 | 2010-09-22 | 北京航空航天大学 | 一种用于科氏质量流量计的副振动反馈控制装置 |
CN103097866A (zh) * | 2010-09-10 | 2013-05-08 | 恩德斯+豪斯流量技术股份有限公司 | 检测科里奥利流量测量装置中堵塞的方法 |
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RU2656294C2 (ru) | 2018-06-04 |
CN104981684B (zh) | 2018-06-05 |
CN104981684A (zh) | 2015-10-14 |
RU2015151900A (ru) | 2017-06-08 |
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