CN114607942A

CN114607942A - Liquid conveying control method and resonant cavity liquid conveying system

Info

Publication number: CN114607942A
Application number: CN202210426915.3A
Authority: CN
Inventors: 杨前战; 石致富
Original assignee: Chinainstru and Quantumtech Hefei Co Ltd
Current assignee: Chinainstru and Quantumtech Hefei Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-06-10
Anticipated expiration: 2042-04-21
Also published as: CN114607942B

Abstract

The application discloses a liquid conveying control method and a resonant cavity liquid conveying system, wherein the resonant cavity liquid conveying system comprises a resonant cavity, a container and a capillary tube, the container is arranged outside the resonant cavity and is used for bearing liquid, the horizontal sectional areas of the inner cavities of the container between any different heights are equal, the capillary tube comprises a first end and a second end, the first end and the second end are positioned outside the resonant cavity, part of the capillary tube is positioned in the resonant cavity, and the container can move along the vertical direction; the liquid delivery control method includes: acquiring the descending speed of the liquid level in the container relative to the bottom wall of the container; the lifting speed is equal to the descending speed of the liquid level in the container, so that the relative height between the container and the capillary is changed, the relative position between the liquid level in the container and the capillary is maintained, the flow rate of the liquid in the container entering the capillary is controlled to be stable, the phenomenon that the flow rate of the liquid entering the capillary changes to generate pulse flow is avoided, and the accurate control of the liquid in the capillary is realized.

Description

Liquid conveying control method and resonant cavity liquid conveying system

Technical Field

The application relates to the field of microwave resonance, in particular to a liquid conveying control method and a resonant cavity liquid conveying system.

Background

In the related art, a fluid is fed into a dielectric capillary within a resonant cavity to change the quality factor (Q-change), the standard signal strength (M-change), and the dielectric loading (D-change) of the resonant cavity. The fluid in the reservoir is transported into the dielectric capillary by a pump disposed between the reservoir and the dielectric capillary. However, the conventional pump has low accuracy of controlling the flow rate of liquid delivery, and the peristaltic pump has relatively high accuracy of controlling the flow rate of liquid delivery, but the peristaltic pump may pulse the liquid to be delivered, may damage the dielectric capillary tube, and is only suitable for the case of low flow rate.

Disclosure of Invention

The embodiment of the application provides a liquid conveying control method and a resonant cavity liquid conveying system.

The liquid conveying control method is used for a resonant cavity liquid conveying system, the resonant cavity liquid conveying system comprises a resonant cavity, a container and a capillary tube, the container is arranged outside the resonant cavity and used for bearing liquid, the horizontal cross-sectional areas of the inner cavity of the container between any different heights are equal, the capillary tube comprises a first end and a second end, the first end and the second end are located outside the resonant cavity, part of the capillary tube is located in the resonant cavity, the section with the higher position of the capillary tube is connected with the container, and the container can move along the vertical direction;

the liquid delivery control method includes:

acquiring the descending speed of the liquid level in the container relative to the bottom wall of the container under the condition that the liquid in the container is conveyed into the resonant cavity through the capillary;

and lifting the container at a speed equal to the speed of the liquid level in the container.

In the liquid conveying control method of the embodiment of the application, the container moves along the vertical direction, so that the relative height between the container and the capillary is changed, the relative position between the liquid level in the container and the capillary is maintained, the flow rate of the liquid in the container entering the capillary is controlled to be stable, the phenomenon that the flow rate of the liquid entering the capillary changes and pulse flow occurs is avoided, and the liquid in the capillary is accurately controlled.

In some embodiments, the resonant cavity liquid conveying system further comprises a hose and a flow valve, wherein two ends of the hose are respectively connected with the bottom of the container and the capillary tube, and the flow valve is arranged at the connection position of the hose and the capillary tube and is fixed in position;

the liquid delivery control method further includes:

presetting a flow rate value;

acquiring the flow rate of liquid at the flow valve;

and acquiring the descending speed of the liquid level in the container relative to the bottom wall of the container according to the flow rate of the liquid at the flow valve.

In certain embodiments, the liquid delivery control method further comprises:

acquiring a preset lifting speed, wherein the preset lifting speed is the speed of liquid level reduction in the container when the flow rate of liquid at the flow valve is equal to the preset flow rate value;

when the flow rate of the liquid at the flow valve is greater than the preset flow rate value, reducing the speed of lifting the container;

increasing the speed of lifting the container when the flow rate of the liquid at the flow valve is less than the preset flow rate value;

when the flow rate of the liquid at the flow valve is equal to the preset flow rate value, keeping the container lifting speed unchanged.

In certain embodiments, the liquid delivery control method further comprises:

and keeping the lifting speed of the container equal to a preset lifting speed until the flow rate of the liquid at the flow valve is equal to the preset flow rate value.

In certain embodiments, the liquid delivery control method further comprises:

acquiring the flow rate of liquid at the flow valve;

calculating the difference value between the flow rate of the liquid at the flow valve and the preset flow rate value;

increasing or decreasing the speed of lifting the container when the difference is greater than a threshold;

and when the difference is smaller than or equal to the threshold value, keeping the lifting speed of the container unchanged.

In certain embodiments, the resonant cavity liquid delivery system further comprises a pressure gauge disposed at the bottom of the vessel;

before the step of obtaining the descending speed of the liquid level in the container relative to the bottom wall of the container according to the flow rate of the liquid at the flow valve, the liquid delivery control method further comprises the following steps:

acquiring a pressure value of the pressure gauge;

calculating the distance from the liquid level of the liquid in the container to the bottom of the container according to the pressure value;

acquiring the actual height of the container;

adjusting the container so that the liquid level in the container is a predetermined height.

In certain embodiments, the liquid delivery control method comprises:

maintaining the flow valve in a closed state during adjustment of the container lift.

In some embodiments, the container comprises a first container and a second container, the first container and the second container are simultaneously connected with the capillary, a first flow valve is arranged between the first container and the capillary, and a second flow valve is arranged between the second container and the capillary;

the liquid delivery control method further includes:

obtaining a total flow rate of liquid in the capillary;

and adjusting the liquid in the first container to a first preset flow rate value according to the proportion, and adjusting the liquid in the second container to a second preset flow rate value according to the proportion.

In certain embodiments, the first container bottom is provided with a first pressure gauge and the second container bottom is provided with a second pressure gauge;

after the proportionally adjusting the liquid in the first container to a first preset flow rate value and the proportionally adjusting the liquid in the second container to a second preset flow rate value, the liquid delivery control method further comprises:

acquiring a first pressure value of the first pressure gauge and a second pressure value of the second pressure gauge;

according to the first pressure value and the second pressure value, calculating the distance between the liquid level in the first container and the bottom of the first container, and calculating the distance between the liquid level in the second container and the bottom of the second container;

acquiring the lifting distance of the first container and the second container along the vertical direction;

maintaining the first and second flow valves in a closed state during adjustment of the first and second vessels to rise and fall.

The resonant cavity liquid delivery system of the embodiment of the present application is used for an electron paramagnetic resonance spectrometer, and the resonant cavity liquid delivery system includes a controller and a memory, and the controller is configured to execute a computer program stored in the memory to execute the liquid delivery control method of any one of the above embodiments.

In the liquid conveying control method and the liquid conveying system with the resonant cavity in the embodiment of the application, the container moves along the vertical direction, so that the relative height between the container and the capillary is changed, the relative position between the liquid level in the container and the capillary is kept, the flow speed of the liquid in the container when entering the capillary is controlled to be stable, the flow speed of the liquid entering the capillary is prevented from changing, pulse flow is avoided, and the liquid in the capillary is accurately controlled.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an electron paramagnetic resonance spectrometer according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a resonant cavity liquid delivery system according to an embodiment of the present application;

FIG. 3 is a schematic flow chart diagram of a liquid delivery control method according to an embodiment of the present application;

FIG. 4 is a block schematic diagram of a resonant cavity liquid delivery system according to an embodiment of the present application;

FIG. 5 is another schematic diagram of a resonant cavity liquid delivery system in accordance with an embodiment of the present application;

FIG. 6 is another schematic flow chart diagram of a liquid delivery control method according to an embodiment of the present application;

FIG. 7 is a further schematic flow chart diagram of a liquid delivery control method according to an embodiment of the present application;

FIG. 8 is a schematic flow diagram of a liquid delivery control method according to an embodiment of the present application;

FIG. 9 is a schematic flow diagram of a liquid delivery control method according to an embodiment of the present application;

FIG. 10 is a schematic flow diagram of a liquid delivery control method according to an embodiment of the present application;

FIG. 11 is a schematic flow chart of a liquid delivery control method according to an embodiment of the present application;

FIG. 12 is a schematic flow chart of a liquid delivery control method according to an embodiment of the present application;

fig. 13 is a further flowchart of the liquid transport control method according to the embodiment of the present application.

Description of the main element symbols:

a resonant cavity liquid delivery system 100;

the device comprises a resonant cavity 10, an opening 11, an outlet 12, a sample inlet 13, a container 20, a first container 21, a second container 22, a capillary tube 30, a flow guide section 31, a test section 32, a first end 33, a second end 34, a lifting seat 40, a connecting seat 41, a guide post 42, a driving assembly 43, a hose 50, a flow valve 60, a first flow valve 61, a second flow valve 62, a pressure gauge 70, a test tube 80, a support 90, a neutral gas tank 101, a receiving cup 102, a controller 103, a memory 104 and an electron paramagnetic resonance spectrometer 200.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, the components and settings of a specific example are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of brevity and clarity and do not in themselves dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 3, a liquid transportation control method according to an embodiment of the present application is applied to a resonant cavity liquid transportation system 100, the resonant cavity liquid transportation system 100 according to an embodiment of the present application is applied to an electron paramagnetic resonance spectrometer 200, the resonant cavity liquid transportation system 100 includes a resonant cavity 10, a container 20, a capillary 30 and a lifting seat 40, the resonant cavity 10 is formed with an opening 11, the container 20 is disposed outside the resonant cavity 10 and is used for carrying liquid, horizontal cross-sectional areas of any different heights of an inner cavity of the container 20 are equal, the capillary 30 includes a first end 33 and a second end 34, the first end 33 and the second end 34 are disposed outside the resonant cavity 10, a part of the capillary 30 is disposed in the resonant cavity 10, a section of the capillary 30 at a higher position is connected to the container 20, the capillary 30 extends into the resonant cavity 10 through the opening 11 and is used for feeding the liquid into the resonant cavity 10, the container 20 is mounted on the lifting seat 40, the lifting base 40 can move the container 20 in a vertical direction.

Referring to fig. 3, the liquid delivery control method includes:

s10, acquiring the descending speed of the liquid level in the container 20 relative to the bottom wall of the container 20 under the condition that the liquid in the container 20 is conveyed into the resonant cavity 10 through the capillary 30;

and S20, lifting the container 20 at a speed equal to the speed at which the liquid level in the container 20 drops.

In addition, referring to fig. 4, the resonant cavity liquid delivery system 100 of the embodiment of the present application further includes a controller 103 and a memory 104, the memory 104 is used for storing the liquid delivery control method of the embodiment of the present application, and the controller 103 is connected to and controls the container 20 to move along the vertical direction. In some embodiments, the controller 103 may be connected to the lifting base 40 and can control the lifting base 40 to move the container 20 along the vertical direction, and the controller 103 is configured to execute a computer program stored in the memory 104 to execute the liquid transportation control method according to the embodiment of the present disclosure. That is, the controller 103 may be configured to obtain a descending speed of the liquid level in the container 20 relative to the bottom wall of the container 20 when the liquid in the container 20 is transported into the resonant cavity 10 through the capillary 30; and for lifting the container 20 at a rate equal to the rate at which the liquid level in the container 20 drops.

In the liquid transportation control method and the resonant cavity liquid transportation system 100 according to the embodiment of the present application, the lifting seat 40 may drive the container 20 to move along the vertical direction, so as to change the relative height between the container 20 and the capillary 30, so as to maintain the relative position between the liquid level in the container 20 and the capillary 30, so as to control the flow rate of the liquid in the container 20 when entering the capillary 30 to be stable, avoid the occurrence of pulse flow due to the change of the flow rate of the liquid entering the capillary 30, and thus realize the precise control of the liquid in the capillary 30.

It will be appreciated that the container 20 may carry liquid through the capillary 30 into the cavity 10 to perform the relevant test, and the cavity 10 may ensure a microwave environment to ensure the stability of the test of the sample. During the process of gradually entering the resonant cavity 10, the liquid in the container 20 will be reduced in amount, and the liquid level will be lowered, so that the liquid pressure to the capillary 30 will be lowered. Because the pipe diameter of the capillary 30 is small, after the liquid in the container 20 reduces the hydraulic pressure of the capillary 30, the liquid in the capillary 30 is slower and slower, and the stability of the liquid flow in the capillary 30 cannot be ensured, thereby affecting the test.

In the related art, a conventional pump has low accuracy in controlling a flow rate of liquid delivery by providing a pump between a container and a capillary tube to deliver liquid in the container into the capillary tube and maintain a stable flow rate. In some embodiments, a peristaltic pump with relatively high precision in controlling the flow rate of liquid delivery is arranged between the container and the capillary tube, but the peristaltic pump can generate pulse flow for the delivered liquid, and the capillary tube is easily damaged in the process of extruding the capillary tube by the peristaltic pump.

In the embodiment of the present application, the container 20 is mounted on the lifting seat 40, the lifting seat 40 can drive the container 20 to move along the vertical direction, and the capillary 30 keeps the original height unchanged, at this time, the speed of the liquid level descending relative to the bottom wall of the container 20 is equal to the lifting speed of the container 20, so that the height difference between the liquid level and the capillary 30 is unchanged, and a certain flow rate can be kept stable after the liquid in the container 20 enters the capillary 30. Thus, the distance between the liquid level in the container 20 and the capillary 30 can be increased or decreased or kept relatively constant by adjusting the lifting seat 40, and the flow rate of the liquid entering the capillary 30 can be increased or decreased or kept relatively constant.

Specifically, in steps S10 and S20, step S10 may be executed before the test to detect the speed of the liquid level in the container 20 descending relative to the bottom of the container 20 at a certain height position of the lifting base 40. Then, at the time of an actual test, liquid is added to the container 20, the container 20 is maintained at a certain height, and at the time of starting the test, the liquid level in the container 20 starts to fall and the container 20 is lifted at the same time, so that the relative height difference of the liquid level in the container 20 with respect to the capillary 30 is constant, and the liquid flowing in the capillary 30 is kept stable. In addition, in some embodiments, the container 20 may be lifted faster than the liquid level is lowered, so that the relative height difference of the liquid level in the container 20 with respect to the capillary 30 becomes larger, and thus the flow rate of the liquid flowing in the capillary 30 becomes gradually larger. In other embodiments, the container 20 may be lifted at a slower rate than the liquid level is lowered, so that the relative height difference of the liquid level in the container 20 with respect to the capillary 30 is smaller, and thus the flow rate of the liquid flowing in the capillary 30 is gradually smaller, so as to meet various test requirements.

It should be noted that maintaining the flow rate of the liquid in the capillary 30 at a constant speed does not require the relative height difference between the liquid level in the container 20 and the capillary 30 to be completely uniform, and the relative height difference may be slightly larger or smaller to maintain the flow rate in the capillary 30 at a constant speed. In the embodiment of the present application, the lifting height of the container 20 is in positive correlation with the speed of the liquid level in the container 20, that is, the lifting speed of the container 20 is in positive correlation with the speed of the liquid level in the container 20, and the higher the speed of the liquid level is, the higher the lifting speed of the container 20 is, the higher the lifting height of the container 20 is, so as to keep the flow rate of the liquid in the capillary 30 stable.

In one example, as the liquid in the container 20 gradually flows into the capillary 30, the liquid level in the container 20 gradually decreases, and the lifting seat 40 can be adjusted while the liquid level decreases, so that the lifting seat 40 can lift up with the container 20, and the relative height difference between the liquid level in the container 20 and the capillary 30 can be kept constant. That is, the speed of the lifting seat 40 for lifting the container 20 is adjusted to be consistent with the speed of the liquid level descending relative to the container 20, so that the flow rate of the liquid in the capillary 30 is stable.

Of course, in another example, since the distance between the container 20 and the capillary 30 may also affect the speed of the liquid entering the capillary 30, the speed of the lifting seat 40 may be adjusted to be greater than the speed of the liquid level descending so as to keep the flow of the liquid in the capillary 30 stable, or the operation of gradually increasing the flow rate of the liquid in the capillary 30 may be realized, which also meets the requirement of the test. In yet another example, where the test in the cavity 10 requires a gradual slowing of the flow rate of the liquid in the capillary 30, the speed of the elevator 40 can be adjusted to be less than the speed of the liquid level descent to maintain a gradual slowing of the liquid flow in the capillary 30. Or the lifting seat 40 can be directly adjusted to descend with the container 20, so that the distance between the liquid level in the container 20 and the capillary 30 is gradually reduced, and the flow rate of the liquid in the capillary 30 is reduced.

In addition, in the present embodiment, the type of the liquid in the container 20 is not limited to meet various requirements. For example, the liquid in the container 20 may be a non-gaseous liquid with fluid properties, such as a melt, a suspension, etc., and the liquid in the container 20 may be used as an auxiliary adjustment to change the property parameters in the resonant cavity 10 after entering the resonant cavity 10, or may be used to directly deliver a liquid sample to the resonant cavity 10.

Further, referring to fig. 2, in some embodiments, the resonant cavity liquid delivery system 100 further includes a hose 50 and a flow valve 60, wherein two ends of the hose 50 are respectively connected to the bottom of the container 20 and the capillary 30, and the flow valve 60 is disposed on the hose 50; the lifting platform 40 moves the container 20 in a vertical direction to adjust the fluid pressure differential across the flow valve 60.

In this way, the hose 50 connects the bottom of the container 20 and the capillary tube 30, so that the liquid in the container 20 enters the capillary tube 30 along with the hose 50, the flow valve 60 can assist in adjusting the flow rate of the liquid entering the capillary tube 30, and the flow rate of the liquid and the difference between the liquid pressures at both ends of the flow valve 60 can be detected by the flow valve 60.

Specifically, the capillary 30 may be horizontally disposed, and a hose 50 may be connected to a side wall of the capillary 30, so that the liquid in the container 20 moves into the resonant cavity 10 in a horizontal direction after entering the capillary 30 through the hose 50, so as to perform a corresponding test. Meanwhile, the flow rate of the liquid in the hose 50 can be detected by adjusting the flow valve 60, and the flow rate can be accurately controlled according to actual needs by detecting the hydraulic pressure difference at two ends of the flow valve 60.

In the concrete implementation, the flow valve 60 may be adjusted in advance, the state of the flow valve 60 may be maintained, the speed of the liquid level lowering in the container 20 may be obtained by measurement, and then the flow valve 60 may be closed. In a formal test, the flow valve 60 can be directly adjusted to the same state, and then the container 20 is lifted according to the measured liquid level descending speed as a standard, so as to ensure the stable liquid flow. Of course, in some embodiments, the flow rate of the liquid at the flow valve 60 may be measured from the flow valve 60, and the rate of liquid level descent may be calculated from the volume of the container 20 and the volume and mass of the liquid, and the container 20 may be raised based on the calculated rate of liquid level descent.

Additionally, in some embodiments, the flow rate of the liquid may be detected by the flow valve 60 while the container 20 is being lifted, and when the flow rate of the liquid is detected to be less than a predetermined value, the speed of lifting may be increased; when the liquid flow rate is detected to be greater than the predetermined value, the lifting speed can be reduced to ensure that the liquid in the capillary tube 30 can stably flow at the predetermined speed.

Referring to fig. 2, in some embodiments, the length of the hose 50 is greater than the maximum stroke length of the lifting platform 40. Thus, the flexible tube 50 can be bent to cooperate with the lifting seat 40 to move the container 20, so as to prevent the flexible tube 50 and the container 20 from being disconnected when the lifting seat 40 is lifted to the highest position.

It can be understood that, when the lifting seat 40 carries the container 20 to move in the vertical direction, both ends of the flexible tube 50 are always connected to the bottom end of the container 20 and the side wall of the capillary 30, so that the container 20 can convey the liquid to the inside of the resonant cavity 10 through the capillary 30 for corresponding tests while the lifting seat 40 moves. It is desirable that the length of the hose 50 is greater than the maximum stroke length of the lifting seat 40 so that the container 20 and the capillary tube 30 can be connected together by the hose 50 when the lifting seat 40 is lifted to the uppermost position.

In addition, in the embodiment of the present application, the number of the containers 20 is not limited, that is, the capillary 30 may connect a plurality of containers 20 and introduce a plurality of liquids into the resonant cavity 10 to implement related tests such as microwave radiation. In one example, the container 20 may include a first container 21 and a second container 22, the first container 21 and the second container 22 are simultaneously connected to the capillary tube 30, a first flow valve 61 is disposed between the first container 21 and the capillary tube 30, and a second flow valve 62 is disposed between the second container 22 and the capillary tube 30. The first container 21 and the second container 22 may carry different liquids, and the first container 21 and the second container 22 may be lifted at different speeds so that the two liquids in the capillary tube 30 may be mixed in a certain ratio and maintain a predetermined flow rate.

Referring to FIG. 2, in some embodiments, the resonant cavity liquid delivery system 100 further includes a pressure gauge 70, the pressure gauge 70 being disposed at the bottom of the container 20.

In this manner, the pressure value at the bottom of the container 20 can be detected by the pressure gauge 70, and the height value of the liquid level from the bottom of the container 20 can be calculated from the pressure value, so that the distance of the liquid level in the container 20 from the capillary 30 can be calculated.

Specifically, the distance of the liquid level with respect to the bottom of the container 20 may be calculated by the pressure gauge 70 before the test is started, and then the container 20 may be adjusted to an initial position by the elevating base 40, at which the distance between the liquid level in the container 20 and the capillary 30 is a constant value. In the concrete implementation, the flow valve 60 may be adjusted in advance, the state of the flow valve 60 may be maintained, the speed of the liquid level lowering in the container 20 may be obtained by measurement, the distance between the liquid level in the container 20 and the capillary 30 may be recorded by the pressure gauge 70 and the lifting base 40, and then the flow valve 60 may be closed. During the formal test, the flow valve 60 can be directly adjusted to the same state, the lifting seat 40 is adjusted according to the pressure gauge 70 to determine the distance between the liquid level and the capillary 30, and the container 20 is lifted according to the measured liquid level descending speed as a standard, so as to ensure the stable liquid flow.

Referring to fig. 2, in some embodiments, the lifting base 40 includes a connecting base 41, a guide post 42 and a driving unit 43, the guide post 42 is disposed along a vertical direction, the connecting base 41 is connected to the container 20 and penetrates the guide post 42, and the driving unit 43 is connected to the connecting base 41 and drives the connecting base 41 to move along the guide post 42.

In this way, the driving assembly 43 can provide a driving force to drive the connecting seat 41 to move the container 20 along the direction of the guide post 42, the guide post 42 can be vertically placed, so that the moving direction of the container 20 can be perpendicular to the placing direction of the capillary 30, and the lifting seat 40 can move the container 20 with the container 20 to change the relative distance between the container 20 and the capillary 30.

Specifically, in the embodiment of the present application, the type of the driving assembly 43 is not limited, and the driving assembly 43 may be driven by a motor and a screw rod, or may be driven by other forms to meet different requirements. The guide post 42 can be along vertical direction setting, and drive assembly 43 can drive connecting seat 41 and take container 20 to remove along guide post 42, and then makes the moving direction be vertical direction all the time, guarantees that lift seat 40 drives container 20 and removes stably.

Referring to FIG. 2, in some embodiments, the resonant cavity liquid delivery system 100 further includes a test tube 80 disposed within the resonant cavity 10, the test tube 80 for carrying a test sample.

Therefore, the test tube 80 can bear a test sample to perform a corresponding test in the resonant cavity 10, and the accuracy and stability of the test effect are ensured.

Specifically, the resonant cavity 10 may further include a sample inlet 13, the test tube 80 may be carried to extend from the sample inlet 13 into the resonant cavity 10, or the test tube 80 may extend from the sample inlet 13 into the resonant cavity 10 and then place the sample into the test tube 80 through the sample inlet 13, so as to test the sample in the test tube 80.

Referring to fig. 2, in some embodiments, the capillary 30 includes a flow guide section 31 and a test section 32, the flow guide section 31 is disposed outside the resonant cavity 10 and connected to the container 20, and the test section 32 is disposed inside the resonant cavity 10 and spaced apart from the test tube 80.

Therefore, the flow guide section 31 can be connected with the container 20 outside the resonant cavity 10 through the hose 50, liquid in the container 20 can enter the test section 32 through the hose 50 and the flow guide section 31 in sequence, the test section 32 is arranged inside the resonant cavity 10 and is arranged at intervals with the test tube 80, and physical properties in the resonant cavity 10 can be changed when the test section 32 flows through the liquid in the container 20, so that test conditions of a sample are met.

Further, referring to FIG. 2, in some embodiments, the resonant cavity liquid delivery system 100 further includes a support 90 disposed within the resonant cavity 10, the support 90 being spaced apart from the test tube 80, the test section 32 being flexible, the test section 32 being wrapped around the support 90 and spaced apart from the test tube 80.

In this manner, the test section 32 may be positioned around the support 90 so as to enclose the test tube 80 in the middle, and the physical properties within the resonant cavity 10 may be changed as the test section 32 flows through the liquid in the container 20 to satisfy the test conditions of the sample in the test tube 80.

In some embodiments, the liquid through which the test section 32 flows does not directly participate in the test, but rather provides the necessary environmental parameters for the test in the test tube 80, i.e., a modifier that can alter the physical properties within the resonant cavity 10. For example, the test segment 32 is looped around the support 90 such that the test segment 32 can have the test tube 80 looped around and spaced from the test tube 80. The liquid through which the test section 32 flows may be an attenuator substance to rapidly change the quality factor of the resonant cavity 10, the liquid through which the test section 32 flows may also be a marker substance to adjust the marker signal, and the liquid through which the test section 32 flows may also be an adapter substance to change the dielectric load of the resonant cavity 10.

Illustratively, the support 90 itself may be a dielectric, and the capillaries 30 wound on the support 90 may be arranged along a contour of a constant electric field. It should be noted that the contour line of the electromagnetic field refers to a line having a constant electromagnetic field strength (e.g., electric field strength and magnetic field strength of a microwave).

Referring to fig. 5, in some embodiments, the portion of the capillary 30 located in the resonant cavity 10 is connected to the test tube 80, and the capillary 30 is used to feed liquid into the test tube 80 in the resonant cavity 10.

In this manner, the liquid in the container 20 can be transported into the test tube 80 through the capillary 30, so that the sample liquid can be tested in the test tube 80 within the resonant cavity 10.

Specifically, in such embodiments, the container 20 may carry a liquid sample directly involved in the test, and the capillary 30 directly transports the liquid sample to the test tube 80 for testing. It will be appreciated that in some embodiments, it is desirable to maintain the liquid sample in the test line 80 in a flowing condition and to perform the test, and the flow valve 60 is maintained in an open condition after the test is initiated.

In addition, the first container 21 and the second container 22 can carry different liquid samples, and the first flow valve 61 and the second flow valve 62 are adjusted so that the samples in the first container 21 and the second container 22 can be mixed in the capillary 30 according to a certain proportion and keep a relatively stable speed to enter the resonant cavity 10. Of course, it is also possible to open the first flow valve 61 to transfer the sample in the first container 21 to the test tube 80 through the capillary 30, then close the first flow valve 61 to open the second flow valve 62, and transfer the sample in the second container 22 to the test tube 80 through the capillary 30, so that the two samples are mixed in the test tube 80 for testing.

Referring to fig. 2 and 5, in some embodiments, the resonator liquid delivery system 100 further includes a neutral gas canister 101 and a receiving cup 102, the capillary 30 includes a first end 33 and a second end 34, the first end 33 and the second end 34 are located outside the resonator 10, a portion of the capillary 30 is located inside the resonator 10, the first end 33 is connected to the neutral gas canister 101, and the second end 34 is connected to the receiving cup 102.

Thus, a neutral gas tank 101 may be connected to the first end 33, and neutral gas may be introduced into the capillary 30 before or after the test is started to purge the line so that the line may be filled with neutral gas. The second end 34 is connected to the receiving cup 102, so that the liquid in the container 20 can flow out of the resonant cavity 10 and enter the receiving cup 102.

It can be understood that before the test is started or after the test is finished, the inside of the whole pipeline needs to be ensured to be clean, neutral gas purging can be performed on the pipeline through the neutral gas tank 101 connected with the first end 33, so that damage to the pipeline caused by volatilization of residual liquid in the pipeline is avoided, or normal operation of the test is influenced.

In some embodiments, the resonator 10 further includes an outlet 12, and the tested capillary 30 may extend from the outlet 12 out of the resonator 10 and communicate with the receiving cup 102. After the liquid in the container 20 enters the resonant cavity 10 through the capillary 30 and the corresponding test is completed, the liquid can flow out of the resonant cavity 10 through the outlet 12 along the capillary 30 and flow into the receiving cup 102 to avoid liquid leakage.

Referring to fig. 2 and 6, in some embodiments, the resonant cavity liquid delivery system 100 further includes a hose 50 and a flow valve 60, wherein two ends of the hose 50 are respectively connected to the bottom of the container 20 and the capillary 30, and the flow valve 60 is disposed at the connection position of the hose 50 and the capillary 30 and is fixed in position.

The liquid delivery control method further includes:

s31, presetting a flow rate value;

s32, acquiring the flow rate of liquid at the flow valve 60;

s33, acquiring the descending speed of the liquid level in the container 20 relative to the bottom wall of the container 20 according to the flow rate of the liquid at the flow valve 60.

Referring to fig. 4, in some embodiments, the steps S31-S33 can be executed by the controller 103. That is, the controller 103 may be used to preset a flow rate value; and for obtaining the flow rate of the liquid at the flow valve 60; and also for obtaining the rate of descent of the liquid level in the container 20 relative to the bottom wall of the container 20, based on the flow rate of the liquid at the flow valve 60.

Thus, when the flow valve 60 opens the liquid from the container 20 through the hose 50 into the capillary tube 30, the flow valve 60 may be disposed on the hose 50 to detect the flow rate of the liquid in the hose 50 to determine the flow rate of the liquid in the container 20, and the detected flow rate value of the flow valve 60 is compared with a predetermined flow rate value, so that the flow rate of the liquid passing through the flow valve 60 can be made equal to the predetermined flow rate value by controlling the speed of lifting the container 20.

Referring to fig. 7, in some embodiments, the liquid delivery control method further includes:

s34, acquiring a preset lifting speed, wherein the preset lifting speed is the speed of liquid level reduction in the container 20 when the flow rate of liquid at the flow valve 60 is equal to a preset flow rate value;

s35, decreasing the speed of lifting the container 20 when the flow rate of the liquid at the flow valve 60 is greater than a preset flow rate value;

s36, increasing the speed of lifting the container 20 when the flow rate of the liquid at the flow valve 60 is less than the preset flow rate value;

s37, when the flow rate of the liquid at the flow valve 60 is equal to the preset flow rate value, the lifting speed of the container 20 is kept constant.

Referring to fig. 4, in some embodiments, the steps S34-S37 can be executed by the controller 103. That is, the controller 103 may be configured to obtain a preset lift velocity, wherein the preset lift velocity is a velocity at which the liquid level in the container 20 drops when the flow rate of the liquid at the flow valve 60 is equal to a preset flow rate value; and for reducing the rate of lifting the container 20 when the flow rate of liquid at the flow valve 60 is greater than a preset flow rate value; and also to increase the rate at which the container 20 is lifted when the flow rate of liquid at the flow valve 60 is less than a preset flow rate value; and for keeping the lifting speed of the container 20 constant when the flow rate of the liquid at the flow valve 60 is equal to a preset flow rate value.

Thus, when the flow rate of the liquid at the flow valve 60 is not equal to the preset flow rate value, the speed of lifting the container 20 can be adjusted to ensure that the flow rate of the liquid at the flow valve 60 is finally equal to the preset flow rate value, and then the container 20 is lifted according to the descending speed of the liquid level in the container 20, so that the flow rate of the liquid in the capillary 30 is stable.

It will be appreciated that the difference in height of the liquid level in the reservoir 20 relative to the capillary tube 30 will determine the rate of flow of liquid from the reservoir 20 into the capillary tube 30, with a greater difference in height of the liquid level relative to the capillary tube 30 providing a greater flow rate of liquid into the capillary tube 30 and a lesser difference in height of the liquid level relative to the capillary tube 30 providing a lesser flow rate of liquid into the capillary tube 30. In steps S10 and S20, the speed of the liquid level drop is maintained to lift the container 20 to ensure a steady flow of liquid in the capillary tube 30. However, at the start of an actual test or during the test, there may be cases where the liquid flow rate is not equal to the preset flow rate value. At this time, the lifting speed of the container 20 can be adjusted to reset the liquid flow rate to a preset flow rate value, and then the lifting speed is adjusted to be the descending speed of the liquid level relative to the bottom wall of the container 20, so as to ensure the stable liquid flow.

Specifically, a simulation operation may be performed before the test is started to record the position of the liquid level in the container 20 and the speed at which the liquid level descends with respect to the capillary 30, and the speed at which the liquid level descends with respect to the capillary 30 is set as the speed at which the lifting base 40 lifts the container 20. Then, at the time of the official test, the container 20 is set at a predetermined position with the liquid level at a predetermined height, and then the flow valve 60 is opened and the container 20 is lifted to conduct the test. It should be noted that during the experiment, the flow valve 60 can detect the flow rate of the liquid passing through the hose 50 and compare the flow rate of the liquid at the flow valve 60 with the preset flow rate value, i.e., steps S35-S37. The rate of lifting of the container 20 is maintained constant when the flow rate of the liquid at the flow valve 60 is equal to the preset flow rate value. When the flow rate of the liquid at the flow valve 60 is greater than the preset flow rate value, the speed of lifting the container 20 is reduced, which makes the flow rate of the liquid into the capillary 30 faster, until it is detected that the flow rate of the liquid at the flow valve 60 is equal to the preset flow rate value, the speed of lifting the container 20 is kept constant. When the flow rate of the liquid at the flow valve 60 is smaller than the preset flow rate value, the speed of lifting the container 20 is increased, so that the flow rate of the liquid entering the capillary tube 30 is slowed down, and when the flow rate of the liquid at the flow valve 60 is detected to be equal to the preset flow rate value, the lifting speed of the container 20 is kept unchanged, and further the flow rate of the liquid entering the capillary tube 30 is stable.

Referring to fig. 8, in some embodiments, the liquid delivery control method further includes:

s41, acquiring a preset lifting speed, wherein the preset lifting speed is the speed of the liquid level in the container 20 descending when the flow rate of the liquid at the flow valve 60 is equal to a preset flow rate value;

s42, keeping the container 20 lifting speed equal to the preset lifting speed until the flow rate of the liquid at the flow valve 60 is equal to the preset flow rate value.

Referring to fig. 4, in some embodiments, the steps S41-S42 can be executed by the controller 103. That is, the controller 103 may be configured to obtain a preset lift velocity, wherein the preset lift velocity is a velocity at which the liquid level in the container 20 drops when the flow rate of the liquid at the flow valve 60 is equal to a preset flow rate value; and for maintaining the container 20 lifting speed equal to the preset lifting speed until the flow rate of the liquid at the flow valve 60 is equal to the preset flow rate value.

In this way, the lifting speed of the container 20 is not changed, so that the lifting speed of the container 20 is always equal to the preset lifting speed, and the liquid in the container 20 gradually approaches and equals to the preset flow rate value after flowing for a certain time, so that the test can be performed under the condition of the preset flow rate value.

Specifically, if the flow rate of the liquid at the flow valve 60 is greater than the preset flow rate value, the liquid level in the container 20 is lowered at a rate greater than the lifting rate of the container 20, that is, the height difference of the liquid level in the container 20 with respect to the capillary 30 becomes smaller, so that the flow rate of the liquid at the flow valve 60 becomes slower and gradually equal to the preset flow rate value. If the flow rate of the liquid at the flow valve 60 is smaller than the preset flow rate value, the liquid level in the container 20 is lowered at a speed lower than the lifting speed of the container 20, that is, the height difference of the liquid level in the container 20 relative to the capillary 30 becomes large, so that the flow rate of the liquid at the flow valve 60 becomes variable and gradually equal to the preset flow rate value, and the flow rate of the liquid in the capillary 30 is stabilized.

It will be appreciated that in such an embodiment, it may be necessary to wait for a certain amount of time to allow the flow rate at the flow valve 60 to gradually approach and equal the predetermined flow rate value before commencing the test and recording.

Referring to fig. 9, in some embodiments, the liquid delivery control method further includes:

s51, acquiring a preset lifting speed, wherein the preset lifting speed is the speed of liquid level reduction in the container 20 when the flow rate of liquid at the flow valve 60 is equal to a preset flow rate value;

s52, acquiring the flow rate of liquid at the flow valve 60;

s53, calculating the difference value between the flow rate of the liquid at the flow valve 60 and a preset flow rate value;

s54, when the difference is larger than the threshold value, increasing or decreasing the speed of lifting the container 20;

and S55, when the difference is smaller than or equal to the threshold value, keeping the lifting speed of the container 20 unchanged.

Referring to fig. 4, in some embodiments, the steps S51-S55 can be executed by the controller 103. That is, the controller 103 may be configured to obtain a preset lift velocity, wherein the preset lift velocity is a velocity at which the liquid level in the container 20 drops when the flow rate of the liquid at the flow valve 60 is equal to a preset flow rate value; and for obtaining the flow rate of the liquid at the flow valve 60; and for calculating the difference between the flow rate of the liquid at the flow valve 60 and a preset flow rate value; and also for increasing or decreasing the speed of lifting the container 20 when the difference is greater than a threshold value; and for keeping the container 20 lifting speed constant when the difference is less than or equal to the threshold value.

In this way, when the flow valve 60 opens the liquid from the container 20 through the hose 50 into the capillary tube 30, the flow valve 60 may be disposed on the hose 50 to detect the flow rate of the liquid in the hose 50, and calculate the difference between the flow rate value and the preset flow rate value, and when the difference is less than or equal to the threshold value, it is only necessary to keep the lifting speed unchanged. Only when the difference is greater than the threshold, the lifting speed of the container 20 may be adjusted according to the flow rate and the preset flow rate, so as to achieve stable flow of the liquid in the capillary 30. This avoids the problem of trial and error by fine-tuning the lifting speed of the container 20 each time.

It is understood that the flow rate of the fluid at the flow valve 60 is not exactly equal to the preset flow rate value, and therefore, the difference between the flow rate of the fluid at the flow valve 60 and the preset flow rate value can be calculated through steps S51 to S53, and the difference is compared with the threshold value. When the difference is less than or equal to the threshold value, step S55 may be performed to keep the lifting speed of the container 20 constant, thereby stabilizing the flow of the liquid in the capillary 30. When the difference is greater than the threshold value, step S54 may be performed to change the speed at which the container 20 is lifted and thus stabilize the flow of liquid in the capillary tube 30. In one example, when the difference is greater than the threshold value and the flow rate of the liquid at the flow valve 60 is greater than a preset flow rate value, the speed of lifting the container 20 is decreased; in another example, when the difference is greater than the threshold value and the flow rate of the liquid at the flow valve 60 is less than the preset flow rate value, the rate of lifting the container 20 is increased, thereby stabilizing the flow of the liquid in the capillary tube 30.

Referring to fig. 2 and 10, in some embodiments, the resonator liquid delivery system 100 further includes a pressure gauge 70, the pressure gauge 70 being disposed at the bottom of the container 20. Before acquiring the descending speed of the liquid level in the container 20 relative to the bottom wall of the container 20 according to the flow rate of the liquid at the flow valve 60 (step S33), the liquid delivery control method further includes:

s61, acquiring the pressure value of the pressure gauge 70;

s62, calculating the distance between the liquid level in the container 20 and the bottom of the container 20 according to the pressure value;

s63, acquiring the height at which the container 20 is actually located;

s64, adjusting the container 20 so that the liquid level in the container 20 is a predetermined height.

Referring to fig. 4, in some embodiments, the steps S61-S64 can be executed by the controller 103. That is, the controller 103 may be configured to obtain a pressure value of the pressure gauge 70; and for calculating the distance of the liquid level in the container 20 from the bottom of the container 20 on the basis of the pressure value; but also for obtaining the height at which the container 20 is actually located; and for adjusting the container 20 so that the liquid level in the container 20 is a predetermined level.

In this way, the distance between the liquid level in the container 20 and the capillary 30 can be calculated according to the pressure value and the position of the lifting seat 40, so as to ensure that the liquid level in the container 20 can be adjusted to a preset height in each test, and thus, the flow rate of the liquid in the capillary 30 is consistent in each test.

Further, referring to fig. 11, in some embodiments, the resonant cavity liquid delivery system 100 further includes a hose 50 and a flow valve 60, wherein two ends of the hose 50 are respectively connected to the bottom of the container 20 and the capillary 30, and the flow valve 60 is disposed on the hose 50. The liquid delivery control method includes:

s65, keeping the flow valve 60 in a closed state during the adjustment of the container 20 lifting.

Referring to fig. 4, in some embodiments, the step S65 may be executed by the controller 103. That is, the controller 103 may be used to maintain the flow valve 60 in a closed state during adjustment of the raising and lowering of the container 20.

Thus, when the lifting seat 40 is adjusted to adjust the container 20 to a predetermined position and the liquid level in the container 20 is a predetermined level, the flow valve 60 needs to be closed to prevent the liquid from flowing out of the container 20 in advance, so that the liquid in the container 20 cannot reach the predetermined level.

It can be understood that in order to ensure the accuracy of the test, it is necessary to ensure that the conditions are consistent for multiple tests. Therefore, step S65 may be performed first to close the flow valve 60 to prevent the liquid in the container 20 from flowing out, and then steps S61-S64 are performed to test the container 20 and the liquid level in the container 20 at a predetermined height.

Referring to fig. 2 and 12, in some embodiments, the container 20 includes a first container 21 and a second container 22, the first container 21 and the second container 22 are connected to the capillary 30, a first flow valve 61 is disposed between the first container 21 and the capillary 30, and a second flow valve 62 is disposed between the second container 22 and the capillary 30. The liquid delivery control method further includes:

s71, obtaining the total flow rate of the liquid in the capillary 30;

s72, proportionally adjusting the liquid in the first container 21 to a first preset flow rate value, and proportionally adjusting the liquid in the second container 22 to a second preset flow rate value.

Referring to fig. 4, in some embodiments, the steps S71-S72 can be executed by the controller 103. That is, the controller 103 may be used to obtain the total flow rate of liquid in the capillary tube 30; and for proportionally adjusting the liquid in the first container 21 to a first preset flow rate value and proportionally adjusting the liquid in the second container 22 to a second preset flow rate value.

In this manner, the liquid in the first container 21 can be adjusted to a first preset flow rate value by the lifting block 40, and the liquid in the second container 22 can be adjusted to a second preset flow rate value by the lifting block 40, so that the total flow rate in the capillary tube 30 can be adjusted.

In some embodiments, a flow monitor (not shown) may be provided on capillary tube 30 to detect the total flow rate of liquid in capillary tube 30.

Further, referring to fig. 2 and 13, in some embodiments, a first pressure gauge is disposed at the bottom of the first container 21, and a second pressure gauge is disposed at the bottom of the second container 22. After scaling the liquid in the first container 21 to the first preset flow rate value and scaling the liquid in the second container 22 to the second preset flow rate value (step S72), the liquid delivery control method further includes:

s73, acquiring a first pressure value of the first pressure gauge and a second pressure value of the second pressure gauge;

s74, calculating the distance between the liquid level in the first container 21 and the bottom of the first container 21 and the distance between the liquid level in the second container 22 and the bottom of the second container 22 according to the first pressure value and the second pressure value;

s75, acquiring the distance of the first container 21 and the second container 22 lifted along the vertical direction;

s76, keeping the first flow valve 61 and the second flow valve 62 in the closed state during the process of adjusting the elevation of the first container 21 and the second container 22.

Referring to fig. 4, in some embodiments, the steps S73-S76 can be executed by the controller 103. That is, the controller 103 may be configured to obtain a first pressure value of the first pressure gauge and a second pressure value of the second pressure gauge; and for calculating, on the basis of the first pressure value and the second pressure value, the distance of the level of the liquid in the first container 21 from the bottom of the first container 21 and the distance of the level of the liquid in the second container 22 from the bottom of the second container 22; and also for acquiring the distance by which the first container 21 and the second container 22 are lifted in the vertical direction; and for maintaining the first and

second flow valves

61 and 62 in a closed state during the adjustment of the elevation of the first and

second vessels

21 and 22.

In this way, the liquid level heights of the first container 21 and the second container 22 can be obtained according to the first pressure value and the second pressure value, so that the heights of the first container 21 and the second container 22 can be adjusted to a predetermined height, respectively, and then the test is performed.

Specifically, step S76 may be performed to close the first flow valve 61 and the second flow valve 62, and then step S71-step S75 may be performed to ensure the heights of the liquids in the first container 21 and the second container 22 at the time of the plurality of tests, so that the liquid in the first container 21 reaches the first preset flow rate value and the liquid in the second container 22 reaches the second preset flow rate value, thereby adjusting the total flow rate in the capillary tube 30, so that the test may be stably performed.

Referring to fig. 4 and 5, in some embodiments, the resonator fluid delivery system 100 further includes a flow valve 60 and a pressure gauge 70, and the controller 103 is connected to the flow valve 60 and the pressure gauge 70, respectively.

In this manner, the controller 103 may be connected to the flow valve 60 and the pressure gauge 70 to obtain the flow rate at the flow valve 60 and the pressure value measured by the pressure gauge 70, respectively, and may calculate the height of the liquid level in the container 20 relative to the bottom of the container 20 based on the pressure values.

Specifically, when testing with multiple containers 20, the controller 103 may simultaneously connect and detect a corresponding plurality of flow valves 60 and a plurality of pressure gauges 70. Illustratively, the controller 103 may connect the first and

second flow valves

61 and 62 and the first and second pressure gauges to detect and control the fluid level in both sets of vessels 20 when performing a test with both vessels 20 of the first and

second vessels

21 and 22.

Further, the present embodiment provides a readable storage medium storing a computer program which, when executed by one or more controllers 103, implements the liquid delivery control method of the above embodiment.

For example, the computer program may be executed by the controller 103 to perform the liquid delivery control method of the following steps:

In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

Although embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A liquid conveying control method is used for a resonant cavity liquid conveying system and is characterized in that the resonant cavity liquid conveying system comprises a resonant cavity, a container and a capillary tube, the container is arranged outside the resonant cavity and is used for bearing liquid, the horizontal sectional areas of the inner cavity of the container between any different heights are equal, the capillary tube comprises a first end and a second end, the first end and the second end are located outside the resonant cavity, part of the capillary tube is located in the resonant cavity, the section, with the higher position, of the capillary tube is connected with the container, and the container can move in the vertical direction;

the liquid delivery control method includes:

2. The liquid conveying control method according to claim 1, wherein the resonant cavity liquid conveying system further comprises a hose and a flow valve, two ends of the hose are respectively connected with the bottom of the container and the capillary, and the flow valve is arranged at the connection position of the hose and the capillary and is fixed in position;

the liquid delivery control method further includes:

presetting a flow rate value;

acquiring the flow rate of liquid at the flow valve;

3. The liquid transport control method according to claim 2, further comprising:

and when the flow rate of the liquid at the flow valve is equal to the preset flow rate value, keeping the lifting speed of the container unchanged.

4. The liquid transport control method according to claim 2, further comprising:

5. The liquid transport control method according to claim 2, further comprising:

acquiring the flow rate of liquid at the flow valve;

and when the difference value is less than or equal to a threshold value, keeping the lifting speed of the container unchanged.

6. The liquid delivery control method of claim 2, wherein the resonant cavity liquid delivery system further comprises a pressure gauge disposed at a bottom of the vessel;

acquiring a pressure value of the pressure gauge;

acquiring the actual height of the container;

7. The liquid transport control method according to claim 6, characterized by comprising:

8. The liquid transport control method according to claim 1, wherein the container includes a first container and a second container, the first container and the second container are connected to the capillary at the same time, a first flow valve is provided between the first container and the capillary, and a second flow valve is provided between the second container and the capillary;

the liquid delivery control method further includes:

obtaining a total flow rate of liquid in the capillary;

9. The liquid transport control method according to claim 8, wherein the first container bottom is provided with a first pressure gauge, and the second container bottom is provided with a second pressure gauge;

10. A resonant cavity liquid delivery system for an electron paramagnetic resonance spectrometer, the resonant cavity liquid delivery system comprising a controller and a memory, the controller being configured to execute a computer program stored in the memory to perform the liquid delivery control method of any one of claims 1-9.