CN214843522U - Magnetostriction liquid level meter with adjustable reflection echo - Google Patents
Magnetostriction liquid level meter with adjustable reflection echo Download PDFInfo
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- CN214843522U CN214843522U CN202121161845.0U CN202121161845U CN214843522U CN 214843522 U CN214843522 U CN 214843522U CN 202121161845 U CN202121161845 U CN 202121161845U CN 214843522 U CN214843522 U CN 214843522U
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Abstract
The present disclosure provides a magnetostrictive liquid level meter with adjustable reflection echo, which includes: an outer sleeve, a float comprising a magnetic portion, the float slidably disposed on the outer sleeve and external to the outer sleeve; a wave guide wire disposed inside the outer sleeve in a length direction of the outer sleeve and to which a current is applied such that the wave guide wire generates a torsional wave pulse at the float position; a vibration sensor for detecting torsional wave pulses generated by the wave guide wire; the waveform sampling module is used for collecting torsional wave pulses detected by the vibration sensor; the amplitude of the torsional wave pulse collected by the waveform sampling module is within a preset range by changing the current in the waveguide wire and/or changing the waveform of the torsional wave pulse input to the waveform sampling module by the vibration sensor.
Description
Technical Field
The present disclosure relates to a magnetostrictive liquid level meter with adjustable reflection echo.
Background
When the sensor of the magnetostrictive liquid level meter works, a circuit part of the sensor excites pulse current on the waveguide wire, and the pulse current magnetic field is generated around the waveguide wire when the current propagates along the waveguide wire. A float is arranged outside a sensor measuring rod of the magnetostrictive liquid level meter, and the float can move up and down along the measuring rod along with the change of the liquid level. A group of permanent magnetic rings is arranged in the floater. When the pulse current magnetic field meets the magnetic ring magnetic field generated by the floater, the magnetic field around the floater changes, so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse (mechanical vibration wave) at the position of the floater, and the pulse (mechanical vibration wave) is transmitted back along the waveguide wire at a fixed speed and is detected by a detection mechanism. The position at which the float is located, i.e. the position of the liquid level, can be accurately determined by measuring the time difference between the pulse current and the received torsional wave detected by the detection mechanism.
However, when the magnetostrictive liquid level meter in the prior art is used, the torsional wave pulse is distorted when the liquid level is low, thereby causing inaccurate measurement of the magnetostrictive liquid level meter.
Disclosure of Invention
In order to solve one of the technical problems, the present disclosure provides a magnetostrictive liquid level meter with adjustable reflection echo.
According to an aspect of the present disclosure, there is provided a magnetostrictive liquid level gauge with tunable reflection echo, comprising:
a float comprising a magnetic portion;
a wave guide wire to which a current is applied to cause the wave guide wire to generate a torsional wave pulse at the float position;
a vibration sensor for detecting torsional wave pulses generated by the wave guide wire; and
the waveform sampling module is used for collecting torsional wave pulses detected by the vibration sensor; the amplitude of the torsional wave pulse collected by the waveform sampling module is within a preset range by changing the current in the waveguide wire and/or changing the waveform of the torsional wave pulse input to the waveform sampling module by the vibration sensor.
The magnetostrictive liquid level meter with adjustable reflection echo according to at least one embodiment of the disclosure further comprises:
controllable return circuit current generator, the one end of waveguide silk connect in controllable return circuit current generator, the other end of waveguide silk pass through the return circuit wire connect in controllable return circuit current generator, with through controllable return circuit current generator to the waveguide silk provides different electric currents.
According to at least one embodiment of the present disclosure, the magnetostrictive liquid level meter with tunable reflection echo comprises:
the controllable voltage energy storage module is used for providing electric energy with different voltages; and
the controllable voltage energy storage module is connected to the waveguide wire through the switch module;
the controllable voltage energy storage module is controlled to generate electric energy with a preset voltage value, and when the switch module is switched on, the electric energy with the preset voltage value is provided for the waveguide wire.
According to at least one embodiment of the present disclosure, the magnetostrictive liquid level meter with adjustable reflection echo comprises:
a controllable voltage source for providing electrical energy at different voltages; and
one end of the charging capacitor is connected to the output terminal of the controllable voltage source, and the other end of the charging capacitor is grounded;
wherein an output terminal of the controllable voltage source is connected with the switch module.
According to at least one embodiment of the present disclosure, the magnetostrictive liquid level meter with adjustable reflection echo, the controllable voltage energy storage module further comprises:
and the voltage measuring module is used for detecting the voltage of the output terminal of the controllable voltage source and transmitting the voltage signal of the output terminal of the controllable voltage source, which is detected by the voltage measuring module, to the operation control module.
The magnetostrictive liquid level meter with adjustable reflection echo according to at least one embodiment of the disclosure further comprises:
the vibration sensor is connected to the waveform sampling module through the controllable signal amplification module;
the amplification factor of the controllable signal amplification module is adjustable, and the amplitude of the torsional wave pulse acquired by the waveform sampling module is within a preset range by adjusting the amplification factor of the controllable signal amplification module.
The magnetostrictive liquid level meter with adjustable reflection echo according to at least one embodiment of the disclosure further comprises:
and the operation control module is connected to the waveform sampling module so as to obtain the position of the floater relative to the waveguide wire according to the time value of the torsional wave pulse acquired by the waveform sampling module.
According to the magnetostrictive liquid level meter with the adjustable reflection echo, the operation control module is further connected with the controllable loop current generator to control the current value provided by the controllable loop current generator to the waveguide wire.
According to the magnetostrictive liquid level meter with the adjustable reflection echo, the operation control module is further used for controlling the controllable loop current generator to provide the time value of the current for the waveguide wire, and the operation control module obtains the position of the floater relative to the waveguide wire according to the difference value between the time value of the current provided for the waveguide wire by the controllable loop current generator and the time value of the torsional wave pulse acquired by the waveform sampling module.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a schematic structural diagram of a magnetostrictive liquid level gauge with tunable reflection echoes according to one embodiment of the present disclosure.
Fig. 2 is a schematic diagram of a controllable loop current generator according to one embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a controllable loop current generator according to one embodiment of the present disclosure.
The reference numbers in the figures are in particular:
100 reflection echo adjustable magnetostriction liquid level meter
110 float
120 wave guide wire
130 vibration sensor
140 waveform sampling module
150 controllable loop current generator
151 controllable voltage energy storage module
1511 controllable voltage source
1512 charging capacitor
1513 Voltage measuring Module
152 switch module
160 controllable signal amplification module
170 calculating the control module.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.
The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.
When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.
For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., as in "side wall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.
FIG. 1 is a schematic structural diagram of a magnetostrictive liquid level gauge with tunable reflection echoes according to one embodiment of the present disclosure.
The present disclosure provides a magnetostrictive liquid level gauge 100 with adjustable reflection echo, comprising:
a float 110, the float 110 comprising a magnetic portion for generating a fixed magnetic field.
A wave guide wire 120, the wave guide wire 120 being applied with a current such that the wave guide wire 120 generates a torsional wave pulse at the location of the float 110;
a vibration sensor 130, the vibration sensor 130 being configured to detect torsional wave pulses generated by the waveguide wire 120; and
a waveform sampling module 140, the waveform sampling module 140 being configured to collect torsional wave pulses detected by the vibration sensor 130;
wherein, by changing the current in the waveguide wire 120 and/or changing the waveform of the torsional wave pulse input to the waveform sampling module 140 by the vibration sensor 130, the amplitude of the torsional wave pulse collected by the waveform sampling module 140 is within a preset range.
The magnetostrictive liquid level meter 100 with the adjustable reflection echo enables the amplitudes of echo signals (torsional wave pulses) at different distances to be basically consistent through the current in the adjustable waveguide wire 120 and/or the waveform of the adjustable torsional wave pulses, the degree of signal attenuation along with the distance amplitude can be reduced, the measurement precision is improved, the measurement reliability is improved, and meanwhile the measuring range of the magnetostrictive liquid level meter 100 with the adjustable reflection echo can be increased.
In the present disclosure, the float 110 may be made of a light material, such as foam; the magnetic part may be a permanent magnet, and is disposed inside the float 110.
Similar to the magnetostrictive liquid level meter in the prior art, a through hole is formed in the middle of the floater 110, and the waveguide wire 120 is positioned in the through hole and enables the floater 110 to move along the length direction of the waveguide wire 120.
In this disclosure, the magnetostrictive liquid level meter 100 with adjustable reflection echo further includes:
a controllable loop current generator 150, one end of the waveguide wire 120 is connected to the controllable loop current generator 150, and the other end of the waveguide wire 120 is connected to the controllable loop current generator 150 through a loop wire, so as to provide different currents to the waveguide wire 120 through the controllable loop current generator 150.
For example, one end of the waveguide wire 120 is connected to the positive terminal of the controllable loop current generator 150, and the other end of the waveguide wire 120 is connected to the negative terminal of the controllable loop current generator 150 through the loop wire, so that the controllable loop current generator 150 and the waveguide wire 120 form a circuit connection.
In an optional embodiment of the present disclosure, when the liquid level detected by the magnetostrictive liquid level meter 100 with tunable reflection echo is falling, the current provided to the waveguide wire 120 is increased; when the liquid level detected by the magnetostrictive liquid level meter 100 with adjustable reflection echo rises, the current supplied to the waveguide wire 120 is reduced.
Wherein the liquid level is lowered as the distance between the vibration sensor 130 and the float 110 becomes larger; the liquid level is lowered by the distance between the vibration sensor 130 and the float 110.
According to at least one embodiment of the present disclosure, the current provided to the waveguide wire 120 is varied by varying the voltage provided to the waveguide wire 120.
Fig. 2 is a schematic diagram of a controllable loop current generator according to one embodiment of the present disclosure.
In the present disclosure, as shown in fig. 2, preferably, the controllable loop current generator 150 includes:
the controllable voltage energy storage module 151, the controllable voltage energy storage module 151 is used for providing electric energy with different voltages; and
the switch module 152, the controllable voltage energy storage module 151 is connected to the waveguide wire 120 through the switch module 152;
the controllable voltage energy storage module 151 is controlled to generate electric energy with a preset voltage value, and when the switch module 152 is turned on, the electric energy with the preset voltage value is provided to the waveguide wire 120.
Fig. 3 is a schematic diagram of a controllable loop current generator according to one embodiment of the present disclosure.
More preferably, as shown in fig. 3, the controllable voltage energy storage module 151 includes:
a controllable voltage source 1511, the controllable voltage source 1511 is used for providing electric energy with different voltages; and
a charging capacitor 1512, one end of the charging capacitor 1512 is connected to the output terminal of the controllable voltage source 1511, and the other end of the charging capacitor 1512 is grounded;
wherein an output terminal of the controllable voltage source 1511 is connected with the switch module 152.
The controllable voltage energy storage module 151 further includes:
a voltage measurement module 1513, wherein the voltage measurement module 1513 is configured to detect a voltage of the output terminal of the controllable voltage source 1511 and transmit a voltage signal of the output terminal of the controllable voltage source 1511 detected by the voltage measurement module 1513 to the operation control module 170; the operation control module 170 also controls the controllable voltage source 1511 to generate the electric energy with the preset voltage value according to the voltage signal of the output terminal detected by the voltage measurement module 1513.
In this disclosure, the operation control module is further connected to the switch module 152, so as to control the switch module 152 to be turned on or off through the operation control module.
According to at least one embodiment of the present disclosure, the magnetostrictive liquid level meter 100 with adjustable reflection echo further includes:
a controllable signal amplifying module 160, wherein the vibration sensor 130 is connected to the waveform sampling module 140 through the controllable signal amplifying module 160;
the amplification factor of the controllable signal amplification module 160 is adjustable, and the amplitude of the torsional wave pulse collected by the waveform sampling module 140 is within a preset range by adjusting the amplification factor of the controllable signal amplification module 160.
That is, the adjustment of the amplitude of the torsional wave pulses (echo signals) of the present disclosure may also be achieved by the controllable signal amplification module 160; the controllable signal amplifying module 160 may be implemented by a signal amplifying circuit with adjustable gain.
Preferably, the amplification factor of the controllable signal amplification module 160 is continuously adjustable; of course, the amplification factor of the controllable signal amplifying module 160 may be adjusted discontinuously. Moreover, when the amplification factor of the controllable signal amplifying module 160 is adjusted discontinuously, the amplitude of the echo signal obtained by using the controllable signal amplifying module 160 alone has poor consistency, and needs to be used in combination with the controllable loop current generator 150.
In an optional embodiment of the present disclosure, the magnetostrictive liquid level meter 100 with adjustable reflection echo further includes:
and the operation control module 170, wherein the operation control module 170 is connected to the waveform sampling module 140 to obtain the position of the floater 110 relative to the waveguide wire 120 according to the time value of the torsional wave pulse collected by the waveform sampling module 140.
More preferably, the arithmetic control module 170 is further connected to the controllable loop current generator 150 to control the current value provided by the controllable loop current generator 150 to the waveguide wire 120.
In the present disclosure, the operation control module 170 is further connected to the controllable loop current generator 150 to control the time value of the current supplied to the waveguide wire 120 by the controllable loop current generator 150, and the operation control module 170 obtains the position of the float 110 relative to the waveguide wire 120 according to the difference between the time value of the current supplied to the waveguide wire 120 by the controllable loop current generator 150 and the time value of the torsional wave pulse collected by the waveform sampling module 140.
In this disclosure, the magnetostrictive liquid level meter 100 with adjustable reflection echo further includes: an outer sleeve, the wave guide wire being disposed inside the outer sleeve along a length of the outer sleeve, the float being slidably disposed on the outer sleeve and being located outside the outer sleeve.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (9)
1. A magnetostrictive liquid level gauge with adjustable reflection echo, characterized in that it comprises:
an outer sleeve is arranged on the outer sleeve,
a float comprising a magnetic portion, the float slidably disposed on the outer sleeve and exterior to the outer sleeve;
a wave guide wire disposed inside the outer sleeve in a length direction of the outer sleeve and to which a current is applied such that the wave guide wire generates a torsional wave pulse at the float position;
a vibration sensor for detecting torsional wave pulses generated by the wave guide wire; and
the waveform sampling module is used for collecting torsional wave pulses detected by the vibration sensor; the amplitude of the torsional wave pulse collected by the waveform sampling module is within a preset range by changing the current in the waveguide wire and/or changing the waveform of the torsional wave pulse input to the waveform sampling module by the vibration sensor.
2. The reflective echo tunable magnetostrictive liquid level gauge according to claim 1, further comprising:
controllable return circuit current generator, the one end of waveguide silk connect in controllable return circuit current generator, the other end of waveguide silk pass through the return circuit wire connect in controllable return circuit current generator, with through controllable return circuit current generator to the waveguide silk provides different electric currents.
3. The reflective echo tunable magnetostrictive liquid level gauge according to claim 2, wherein the controllable loop current generator comprises:
the controllable voltage energy storage module is used for providing electric energy with different voltages; and
the controllable voltage energy storage module is connected to the waveguide wire through the switch module;
the controllable voltage energy storage module is controlled to generate electric energy with a preset voltage value, and when the switch module is switched on, the electric energy with the preset voltage value is provided for the waveguide wire.
4. The reflective echo tunable magnetostrictive liquid level gauge according to claim 3, wherein the controllable voltage energy storage module comprises:
a controllable voltage source for providing electrical energy at different voltages; and
one end of the charging capacitor is connected to the output terminal of the controllable voltage source, and the other end of the charging capacitor is grounded;
wherein an output terminal of the controllable voltage source is connected with the switch module.
5. The reflective echo tunable magnetostrictive liquid level gauge according to claim 4, wherein the controllable voltage energy storage module further comprises:
and the voltage measuring module is used for detecting the voltage of the output terminal of the controllable voltage source and transmitting the voltage signal of the output terminal of the controllable voltage source, which is detected by the voltage measuring module, to the operation control module.
6. The reflective echo tunable magnetostrictive liquid level gauge according to claim 1, further comprising:
the vibration sensor is connected to the waveform sampling module through the controllable signal amplification module;
the amplification factor of the controllable signal amplification module is adjustable, and the amplitude of the torsional wave pulse acquired by the waveform sampling module is within a preset range by adjusting the amplification factor of the controllable signal amplification module.
7. The reflective echo tunable magnetostrictive liquid level gauge according to claim 1, further comprising:
and the operation control module is connected to the waveform sampling module so as to obtain the position of the floater relative to the waveguide wire according to the time value of the torsional wave pulse acquired by the waveform sampling module.
8. The magnetostrictive liquid level gauge according to claim 7, characterized in that the arithmetic control module is further connected to a controllable loop current generator for controlling the current value supplied by the controllable loop current generator to the waveguide wire.
9. The magnetostrictive liquid level gauge according to claim 8, wherein the operational control module is further configured to control the controllable-loop current generator to provide a time value of the current to the waveguide wire, and the operational control module obtains the position of the float relative to the waveguide wire according to a difference between the time value of the current provided to the waveguide wire by the controllable-loop current generator and the time value of the torsional wave pulse collected by the waveform sampling module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121161845.0U CN214843522U (en) | 2021-05-27 | 2021-05-27 | Magnetostriction liquid level meter with adjustable reflection echo |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121161845.0U CN214843522U (en) | 2021-05-27 | 2021-05-27 | Magnetostriction liquid level meter with adjustable reflection echo |
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| CN214843522U true CN214843522U (en) | 2021-11-23 |
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