CN117990170B - Vibration sensor drive control method, system and equipment for mass flowmeter - Google Patents
Vibration sensor drive control method, system and equipment for mass flowmeter Download PDFInfo
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- CN117990170B CN117990170B CN202410404516.6A CN202410404516A CN117990170B CN 117990170 B CN117990170 B CN 117990170B CN 202410404516 A CN202410404516 A CN 202410404516A CN 117990170 B CN117990170 B CN 117990170B
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000005070 sampling Methods 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 17
- 238000004590 computer program Methods 0.000 claims description 13
- 230000003993 interaction Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
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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
- G01F1/8422—Coriolis or gyroscopic mass flowmeters constructional details exciters
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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
- G01F1/8431—Coriolis or gyroscopic mass flowmeters constructional details electronic circuits
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/001—Means for regulating or setting the meter for a predetermined quantity
- G01F15/003—Means for regulating or setting the meter for a predetermined quantity using electromagnetic, electric or electronic means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a vibration sensor driving control method, a vibration sensor driving control system and vibration sensor driving control equipment for a mass flowmeter, and relates to the field of vibration sensor monitoring. The method comprises the following steps: collecting a current signal and a voltage signal of a driving coil by using a first sampling module; the CPU module is utilized to calculate a current signal and a voltage signal of the driving coil, whether the vibration sensor deviates from a resonance state or not is judged, and a judgment result is generated; and outputting a driving control signal for adjusting the vibration state of the vibration sensor through a driving control signal output module according to the judging result. The invention can reduce the time of the sensor deviating from the resonance state and improve the measurement precision.
Description
Technical Field
The present invention relates to the field of vibration sensor monitoring, and in particular, to a vibration sensor driving control method, system and apparatus for a mass flowmeter.
Background
The coriolis mass flowmeter is used for measuring the flow medium flow in the elastic measuring tube in a mode of measuring the vibration time difference of the two ends of the detection coil when the vibration structure of the elastic measuring tube is in a resonance state. The key point of stable and reliable operation of the mass flowmeter is to ensure that the vibration sensor is in an ideal vibration state. The flowing medium will cause the vibration sensor to deviate from the resonance state, which will result in measurement errors. The time for the vibration sensor to recover from the non-resonance state to the resonance state is reduced, and the density measurement precision and the flow measurement precision of the mass flowmeter can be improved.
The conventional control method is to use the calculated sensor vibration data for the detection and control of the resonance state while performing the measurement flow rate correlation calculation and calculation by using the data obtained by the detection coil, and "by the way" completes the detection and control of the resonance state.
The detection coil collects vibration signal frequency and amplitude at two ends of the elastic measuring tube, the CPU obtains the deviation resonance state of the elastic measuring tube through resolving the vibration signal frequency and amplitude, and sends out a driving control signal to recover the resonance state of the vibration sensor. And the faults such as broken line of the driving coil and abnormal vibration amplitude are required to undergo the process of detection-resolving-sending out driving control signals so as to realize closed-loop control, and the time delay is long.
Meanwhile, the vibration amplitude and frequency of the elastic measuring tube detecting coil are affected by the internal medium and the external environment, so that the vibration state of the vibration sensor cannot be completely reflected, and the reasons for the vibration sensor to deviate from the resonance state cannot be distinguished, such as whether the vibration sensor deviates from the resonance state due to the fact that the medium in the elastic measuring tube medium changes or not. If the vibration state of the vibration sensor obtained by the detection-resolving method cannot directly respond to the reason that the working state of the elastic measuring tube is changed, the driving control signal needs to be adjusted for multiple times to enable the vibration sensor to enter the resonance state. Thus, the vibration sensor is in a non-resonance state for a long time, and a large measurement error can be generated.
Disclosure of Invention
The invention aims to provide a vibration sensor driving control method, a vibration sensor driving control system and vibration sensor driving control equipment for a mass flowmeter, which are used for solving the problem that a vibration state of a vibration sensor is low in detection accuracy, so that a driving control signal is adjusted for a plurality of times, and the vibration sensor is in a non-resonance state for a long time.
In order to achieve the above object, the present invention provides the following solutions:
a vibration sensor drive control method for a mass flow meter, comprising:
Collecting a current signal and a voltage signal of a driving coil by using a first sampling module;
The CPU module is utilized to calculate a current signal and a voltage signal of the driving coil, whether the vibration sensor deviates from a resonance state or not is judged, and a judgment result is generated;
And outputting a driving control signal for adjusting the vibration state of the vibration sensor through a driving control signal output module according to the judging result.
Optionally, the first sampling module is used for collecting a current signal and a voltage signal of the driving coil, and then the method further comprises:
Collecting vibration signal voltages of detection coils at two ends of a vibration sensor by using a second sampling module;
And (3) calculating the voltage of the vibration signal, outputting frequency and phase information of the vibration signals on the two detection coils, calculating the time difference of the two detection coils, and generating a flow measurement result of the flowing medium in the measuring tube.
Optionally, the CPU module is used to calculate the current signal and the voltage signal of the driving coil, and determine whether the vibration sensor deviates from the resonance state, so as to generate a determination result, which specifically includes:
reading standard vibration parameters in the storage module;
calculating a current signal and a voltage signal of the driving coil to generate a calculated vibration parameter; the calculated vibration parameters comprise amplitude, frequency and phase information of a current signal and a voltage signal of the driving coil;
Judging whether the calculated vibration parameters and the standard vibration parameters have differences or not;
If the difference exists, determining that the judging result is that the vibration sensor deviates from a resonance state;
And if no difference exists, determining that the vibration sensor is not deviated from the resonance state as a judging result.
Optionally, outputting, by the drive control signal output module, a drive control signal for adjusting the vibration state of the vibration sensor according to the determination result, including:
And when the judging result is that the vibration sensor deviates from the resonance state, outputting a corresponding driving control signal according to the difference value between the calculated vibration parameter and the standard vibration parameter so as to adjust the vibration state of the vibration sensor.
A vibration sensor drive control system for a mass flow meter, comprising:
the first sampling module is used for collecting current signals and voltage signals of the driving coil;
The CPU module is used for resolving the current signal and the voltage signal of the driving coil, judging whether the vibration sensor deviates from a resonance state or not and generating a judging result;
and the driving control signal output module is used for outputting a driving control signal for adjusting the vibration state of the vibration sensor, which is determined according to the judging result, to the vibration sensor.
Optionally, the method further comprises: a storage module;
and the storage module is used for reading the standard vibration parameters.
Optionally, the CPU module specifically includes:
the reading unit is used for reading the standard vibration parameters in the storage module;
The calculating unit is used for calculating the current signal and the voltage signal of the driving coil and generating a calculated vibration parameter; the calculated vibration parameters comprise amplitude, frequency and phase information of a current signal and a voltage signal of the driving coil;
The judging unit is used for judging whether the resolved vibration parameters and the standard vibration parameters are different or not;
A resonance state determining unit, configured to determine that the vibration sensor deviates from a resonance state as a result of the determination if there is a difference;
and the non-resonance state determining unit is used for determining that the vibration sensor does not deviate from the resonance state if no difference exists.
Optionally, the method further comprises: an adjusting unit;
And the adjusting unit is used for outputting a corresponding driving control signal according to the difference value between the calculated vibration parameter and the standard vibration parameter after the resonance state determining unit determines that the judging result is that the vibration sensor deviates from the resonance state, so as to adjust the vibration state of the vibration sensor.
Optionally, the method further comprises: a man-machine interaction module;
the man-machine interaction module is capable of inquiring and modifying various data and parameters in a vibration sensor drive control system for the mass flowmeter.
An electronic device comprising a memory for storing a computer program and a processor that runs the computer program to cause the electronic device to execute the vibration sensor drive control method for a mass flow meter described above.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the invention provides a driving control method, a driving control system and driving control equipment for a vibration sensor of a mass flowmeter, which are used for collecting current signals and voltage signals from a driving coil so as to acquire current and voltage data when the vibration state changes in real time, and more directly reflect the vibration state of the sensor, so that the driving control signals can be adjusted more timely and accurately, the frequency of adjusting the driving control signals is reduced, the time of deviating the sensor from the resonance state is reduced, and the measurement accuracy is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a vibration sensor drive control method for a mass flow meter provided by the present invention;
Fig. 2 is a block diagram of a vibration sensor driving control system for a mass flowmeter according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a vibration sensor driving control method, a vibration sensor driving control system and vibration sensor driving control equipment for a mass flowmeter, which are used for reducing the time for deviating a sensor from a resonance state and improving the measurement precision.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Embodiment one: as shown in fig. 1, the present invention provides a vibration sensor driving control method for a mass flowmeter, comprising the following steps.
Step 101: and collecting a current signal and a voltage signal of the driving coil by using a first sampling module.
Step 102: and the CPU module is used for calculating the current signal and the voltage signal of the driving coil, judging whether the vibration sensor deviates from the resonance state, and generating a judging result.
Step 103: and outputting a driving control signal for adjusting the vibration state of the vibration sensor through a driving control signal output module according to the judging result.
In practical applications, the step 102 specifically includes: reading standard vibration parameters in the storage module; calculating a current signal and a voltage signal of the driving coil to generate a calculated vibration parameter; the calculated vibration parameters comprise amplitude, frequency and phase information of a current signal and a voltage signal of the driving coil; the vibration signal voltage is calculated, frequency and phase information of vibration signals on the two detection coils are output, the time difference of the two detection coils is calculated, and a flow measurement result of flowing media in the measuring tube is generated; judging whether the calculated vibration parameters and the standard vibration parameters have differences or not; if the difference exists, determining that the judging result is that the vibration sensor deviates from a resonance state; and if no difference exists, determining that the vibration sensor is not deviated from the resonance state as a judging result.
In practical applications, step 103 specifically includes: and when the judging result is that the vibration sensor deviates from the resonance state, outputting a corresponding driving control signal according to the difference value between the calculated vibration parameter and the standard vibration parameter so as to adjust the vibration state of the vibration sensor.
Taking coriolis mass flowmeter as an example, the specific implementation process of the vibration sensor driving control method for the mass flowmeter provided by the invention is realized as follows.
Step one: the Coriolis mass flowmeter works normally, the CPU reads standard vibration parameters stored in the storage module, and outputs a driving control signal through the driving control signal output module, so that the vibration sensor is in a resonance state, the second sampling module collects vibration signal frequency and amplitude through driving coils at two ends, and flow medium flow measurement in the elastic measuring tube is achieved through comparison of vibration signal time differences at two ends.
Step two: and collecting current signals and voltage signals on driving coils at two ends of the vibration sensor through a first sampling module.
In practical application, if the first sampling module only samples current, the voltage signal needs to be calculated through the current and the resistance value of the driving coil; if the first sampling module is provided with voltage and current sampling, the voltage and current signals are directly collected through the first sampling module.
Step three: the collected voltage and current signals are transmitted to a CPU module, the CPU module firstly processes the signals to obtain amplitude, frequency and phase information of the voltage signals and the current signals, then the obtained amplitude, frequency and phase information is compared with standard vibration parameters in a storage module, if the vibration state of the vibration sensor changes, the collected information and the standard vibration parameters are different, and at the moment, the CPU module judges that the vibration sensor deviates from the resonance state.
Step four: the CPU module outputs a driving control signal with corresponding size according to the acquired information and the difference value of the standard vibration parameters, and the driving control signal is sent to the driving coil through the driving control signal output module, so that the vibration state of the vibration sensor is adjusted.
The invention can directly reflect the reason of the change of the working state of the elastic measuring tube through the current signal and the voltage signal on the driving coil, avoid the need of adjusting the driving control signal for multiple times, reduce the time of deviating the vibration sensor from the resonance state and improve the measuring precision.
The invention can timely adjust the amplitude, frequency and phase information of the driving control signal under the condition of relatively small vibration change by sampling the current and voltage signals of the driving coil so as to maintain the resonance state of the vibration sensor, thus reducing the energy required for adjusting the vibration state of the vibration sensor, actually shortening the response time of the driving control signal when controlling the vibration change and adjusting the vibration state to the resonance state in relatively short time.
Embodiment two: in order to perform a corresponding method of the above-described embodiments to achieve the corresponding functions and technical effects, a vibration sensor drive control system for a mass flowmeter is provided below.
As shown in fig. 2, the present invention also provides a vibration sensor drive control system for a mass flow meter, including the following modules.
The first sampling module 201 is configured to collect a current signal and a voltage signal of the driving coil. The driving coil is arranged at two ends of the elastic measuring tube and used for collecting signals and controlling the vibration state of the vibration sensor.
The second sampling module 202 is configured to collect vibration signal voltages of the detection coils at two ends of the vibration sensor.
The CPU module 203 is configured to calculate the current signal and the voltage signal of the driving coil, determine whether the vibration sensor deviates from the resonance state, and generate a determination result.
And a driving control signal output module 204, configured to output a driving control signal for adjusting the vibration state of the vibration sensor, which is determined according to the determination result, to the vibration sensor, so as to control the vibration state of the vibration sensor.
The first sampling module 201, the second sampling module 202 and the driving control signal output module 204 are respectively connected with the driving coil, and meanwhile, the first sampling module 201, the second sampling module 202 and the driving control signal output module 204 are connected with the CPU module 203.
In practical applications, the invention further comprises: and a storage module 205 connected with the CPU module 203 and a man-machine interaction module 206.
As an alternative embodiment of the present invention, the first sampling module 201 may collect only the current signal, or may collect the voltage and current signals at the same time; the first acquisition module 201 comprises at least one resistor and peripheral circuitry for current sampling, and may also comprise peripheral circuitry for voltage sampling.
As an alternative embodiment of the present invention, the second sampling module 202 is configured to collect the frequency and the amplitude of the vibration signals of the driving coils at two ends, and implement flow measurement of the flowing medium in the elastic measuring tube by comparing the time differences of the vibration signals at two ends.
The second sampling module 202 is an audio codec device with multiple analog signals to digital signals (Analog to Digital, AD) sampling and driving output channels. The AD channel and the digital signal-to-analog signal (Digita to Analogl, DA) channel of the device have synchronous output function, so that the time difference between sampling data and outputting data caused by using an independent AD conversion chip or DA chip can be reduced, and the accuracy of measurement is affected.
The storage module 205 is used for storing standard vibration parameters obtained in the calibration process of the production instrument and in the research and development experiments of the product.
The man-machine interaction module 206 is interaction equipment for inquiring and modifying data and parameters in the man-machine interaction module and the control circuit, and can be an operation screen with display or other equipment capable of inquiring and modifying data and parameters through data signal communication.
In practical application, the CPU module 203 specifically includes: a reading unit for reading the standard vibration parameters in the storage module 205; the first resolving unit is used for resolving the current signal and the voltage signal of the driving coil and generating resolved vibration parameters; the calculated vibration parameters comprise amplitude, frequency and phase information of a current signal and a voltage signal of the driving coil; the second resolving unit is used for resolving the voltage of the vibration signal, outputting frequency and phase information of the vibration signals on the two detection coils, calculating the time difference of the two detection coils and generating a flow measurement result of the flowing medium in the measuring tube; the judging unit is used for judging whether the resolved vibration parameters and the standard vibration parameters are different or not; a resonance state determining unit, configured to determine that the vibration sensor deviates from a resonance state as a result of the determination if there is a difference; and the non-resonance state determining unit is used for determining that the vibration sensor does not deviate from the resonance state if no difference exists.
The invention also includes: an adjusting unit; and the adjusting unit is used for outputting a corresponding driving control signal according to the difference value between the calculated vibration parameter and the standard vibration parameter after the resonance state determining unit determines that the judging result is that the vibration sensor deviates from the resonance state, so as to adjust the vibration state of the vibration sensor.
The invention collects voltage and current signals from the driving coil of the vibration sensor, completes the judgment of the vibration state of the vibration sensor, further completes the adjustment of the driving control signal, shortens the time from the non-resonance state to the resonance state of the vibration sensor, and improves the measurement precision.
Embodiment III: an embodiment of the present invention provides an electronic device including a memory for storing a computer program and a processor that runs the computer program to cause the electronic device to execute the vibration sensor driving control method for a mass flowmeter provided in the first embodiment.
In practical applications, the electronic device includes: at least one processor (processor) and a memory (memory).
The measurement data output mode can be a communication interface or can be just frequency output, namely a digital frequency signal or a current loop signal.
Wherein: the processor, communication interface, and memory communicate with each other via a communication bus.
And the communication interface is used for communicating with other devices.
And a processor, configured to execute a program, and specifically may execute the method described in the foregoing embodiment.
In particular, the program may include program code including computer-operating instructions.
The processor may be a central processing unit, CPU, or Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention. The one or more processors included in the electronic device may be the same type of processor, such as one or more CPUs; but may also be different types of processors such as one or more CPUs and one or more ASICs.
And the memory is used for storing programs. The memory may comprise a high-speed RAM memory or may further comprise a non-volatile memory, such as at least one non-volatile ferroelectric memory chip.
Based on the description of the embodiments above, embodiments of the present application provide a storage medium having stored thereon computer program instructions executable by a processor to implement the method of any of the embodiments.
Thus, particular embodiments of the present subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.
The system, apparatus, module or unit set forth in the above embodiments may be implemented in particular by DSP, MCU, FPGA, programmable logic or a chip with computing functionality, or by a product with certain functionality.
For convenience of description, the above devices are described as being functionally divided into various units, respectively. Of course, the functions of each element may be implemented in the same piece or pieces of software and/or hardware when implementing the present application. It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), an input/output interface, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, or any other non-transmission media that can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular transactions or implement particular abstract data types. The application may also be practiced in distributed computing environments where transactions are performed by remote processing devices that are connected through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1.A vibration sensor drive control method for a mass flow meter, comprising:
Collecting a current signal and a voltage signal of a driving coil by using a first sampling module;
The CPU module is utilized to calculate the current signal and the voltage signal of the driving coil, and judge whether the vibration sensor deviates from the resonance state or not, and a judging result is generated, and the method specifically comprises the following steps:
reading standard vibration parameters in the storage module;
calculating a current signal and a voltage signal of the driving coil to generate a calculated vibration parameter; the calculated vibration parameters comprise amplitude, frequency and phase information of a current signal and a voltage signal of the driving coil;
Judging whether the calculated vibration parameters and the standard vibration parameters have differences or not;
If the difference exists, determining that the judging result is that the vibration sensor deviates from a resonance state;
if no difference exists, determining that the judging result is that the vibration sensor does not deviate from the resonance state;
And outputting a driving control signal for adjusting the vibration state of the vibration sensor through a driving control signal output module according to the judging result.
2. The vibration sensor drive control method for a mass flow meter according to claim 1, wherein the current signal and the voltage signal of the drive coil are acquired by the first sampling module, and further comprising:
Collecting vibration signal voltages of detection coils at two ends of a vibration sensor by using a second sampling module;
And (3) calculating the voltage of the vibration signal, outputting frequency and phase information of the vibration signals on the two detection coils, calculating the time difference of the two detection coils, and generating a flow measurement result of the flowing medium in the measuring tube.
3. The vibration sensor driving control method for a mass flowmeter according to claim 1, wherein outputting a driving control signal for adjusting the vibration state of the vibration sensor through a driving control signal output module according to the determination result, specifically comprises:
And when the judging result is that the vibration sensor deviates from the resonance state, outputting a corresponding driving control signal according to the difference value between the calculated vibration parameter and the standard vibration parameter so as to adjust the vibration state of the vibration sensor.
4. A vibration sensor drive control system for a mass flow meter, comprising:
the first sampling module is used for collecting current signals and voltage signals of the driving coil;
The CPU module is used for resolving the current signal and the voltage signal of the driving coil, judging whether the vibration sensor deviates from a resonance state or not and generating a judging result; the CPU module specifically comprises:
the reading unit is used for reading the standard vibration parameters in the storage module;
The calculating unit is used for calculating the current signal and the voltage signal of the driving coil and generating a calculated vibration parameter; the calculated vibration parameters comprise amplitude, frequency and phase information of a current signal and a voltage signal of the driving coil;
The judging unit is used for judging whether the resolved vibration parameters and the standard vibration parameters are different or not;
A resonance state determining unit, configured to determine that the vibration sensor deviates from a resonance state as a result of the determination if there is a difference;
a non-resonance state determining unit, configured to determine that the vibration sensor does not deviate from the resonance state if there is no difference;
and the driving control signal output module is used for outputting a driving control signal for adjusting the vibration state of the vibration sensor, which is determined according to the judging result, to the vibration sensor.
5. The vibration sensor drive control system for a mass flow meter of claim 4, further comprising: a storage module;
and the storage module is used for reading the standard vibration parameters.
6. The vibration sensor drive control system for a mass flow meter of claim 4, further comprising: an adjusting unit;
And the adjusting unit is used for outputting a corresponding driving control signal according to the difference value between the calculated vibration parameter and the standard vibration parameter after the resonance state determining unit determines that the judging result is that the vibration sensor deviates from the resonance state, so as to adjust the vibration state of the vibration sensor.
7. The vibration sensor drive control system for a mass flow meter of claim 4, further comprising: a man-machine interaction module;
the man-machine interaction module is capable of inquiring and modifying various data and parameters in a vibration sensor drive control system for the mass flowmeter.
8. An electronic device comprising a memory for storing a computer program and a processor that runs the computer program to cause the electronic device to execute the vibration sensor drive control method for a mass flow meter according to any one of claims 1 to 3.
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| EP1281938B1 (en) * | 1998-12-11 | 2012-05-30 | Endress + Hauser Flowtec AG | Coriolis-type mass flowmeter/densimeter |
| JP2002330538A (en) * | 2001-04-27 | 2002-11-15 | Sony Corp | Electronic equipment |
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| CN104269943A (en) * | 2014-09-29 | 2015-01-07 | 华南理工大学 | Frequency tracking device of wireless energy transmitting system and frequency tracking method thereof |
| CN110784797A (en) * | 2019-10-31 | 2020-02-11 | 歌尔科技有限公司 | Wireless earphone control method and device, wireless earphone and storage medium |
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| CN104040301A (en) * | 2012-10-30 | 2014-09-10 | 西安东风机电有限公司 | Digital drive method and system of coriolis flow meter |
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