CN108761210A - A kind of fluid resistance measuring device and measuring method - Google Patents
A kind of fluid resistance measuring device and measuring method Download PDFInfo
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- CN108761210A CN108761210A CN201810915765.6A CN201810915765A CN108761210A CN 108761210 A CN108761210 A CN 108761210A CN 201810915765 A CN201810915765 A CN 201810915765A CN 108761210 A CN108761210 A CN 108761210A
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/22—Measuring resistance of fluids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a kind of fluid resistance measuring device and measuring method, device includes：Hollow tube has the pipeline of conductor fluid to be measured is perfused, and positioned at the nozzle of the pipe ends, conductor fluid is filled into the pipeline by the nozzle or is poured out from the pipeline；Two sealing-plugs, the nozzle for blocking the hollow tube use detachable connection between each sealing-plug and the nozzle；Wherein, be respectively arranged with an electrode for running through cock body on each sealing-plug, one end of electrode be used for the conducting fluid contacts in pipeline, the other end of electrode is as detecting electrode.The present invention measures the resistance of conductor fluid using tube body, it the resistance measurement of standards such as may be implemented, avoid the influence of the various shapes to conducting wire during being laid with conducting wire, there is the conductor fluid after measuring by this way to be easily recycled again, reduce the spillage of material in research process, in addition, resistivity-measuring devices in the present invention are simple in structure, it is easy to measure.
Description
Technical field
The invention belongs to electronic material performance detection technical field more particularly to a kind of fluid resistance measuring device and measurements
Method.
Background technology
Liquid metal is the low-melting alloy that liquid is presented under a kind of room temperature, has excellent electric conductivity, thermal conductivity, flowing
The excellent properties such as property, tensility, chemical inertness, are a kind of new electronic materials of great potential.In recent years, liquid gold is surrounded
The scientific research of category and industrial applications receive significant attention.Liquid metal electric conductivity characterizes (resistivity/conductivity measurement)
One important content of liquid metal research.
For the detection of liquid metal resistance, liquid metal is printed as by researcher by the method directly printed at present
The lines of different in width measure line resistor, then calculate resistivity, since the factors such as printing precision is limited, substrate imperfection are difficult to
Avoid line thickness, thickness etc. are uneven from leading to measurement data there are relatively large deviations.Researcher is also by the method for cutting one
Depthkeeping degree, certain length groove in filling liquid metal measure its resistance, but the manufacturing process of groove is cumbersome, ditch groove depth
Degree, width is uneven and liquid metal is since surface tension larger the problems such as being difficult to realize preferably fill all gives liquid metal
Resistance measurement brings some problems.
Invention content
In view of this, it is an object of the invention to propose a kind of fluid resistance measuring device, to solve in the prior art
Lack the resistance measurement technique of unified standard for conductor fluid.
In some illustrative embodiments, the fluid resistance measuring device, including：Hollow tube has to be perfused
The pipeline of conductor fluid to be measured, and positioned at the nozzle of the pipe ends, conductor fluid is filled by the nozzle
It is poured out in the pipeline or from the pipeline；Two sealing-plugs, the nozzle for blocking the hollow tube, each sealing-plug
Detachable connection is used between the nozzle；Wherein, it is respectively arranged with an electricity for running through cock body on each sealing-plug
Pole, one end of electrode be used for the conducting fluid contacts in pipeline, the other end of electrode is as detecting electrode.
In some optionally embodiment, along the extending direction of the hollow tube, the section of the pipeline is consistent.
In some optionally embodiment, by one of following or arbitrarily combine between the sealing-plug and the nozzle
Mode is connected：Screw-thread fit, plug-in cooperation, jacket-type cooperation and magnetic cooperation.
At least exist on a sealing-plug in some optionally embodiment, in described two sealing-plugs and is provided through plug
The stomata of body, and the vent plug with stomata cooperation.
In some optionally embodiment, the fluid resistance measuring device further includes：Temperature sensing assembly, for supervising
Survey the temperature of conductor fluid in the pipeline.
In some optionally embodiment, the fluid resistance measuring device further includes：Temperature control system, the temperature control system
System includes the temperature sensing assembly, further includes：Temperature-controlling module, the temperature for adjusting conductor fluid in the pipeline.
In some optionally embodiment, the fluid resistance measuring device further includes：Resistance detection component, for leading to
It crosses and connects the detecting electrode, measure the resistance relevant parameter of the conductor fluid in pipeline.
In some optionally embodiment, the conductor fluid includes that liquid metal or the conduction based on liquid metal are mixed
Close object.
In some optionally embodiment, the hollow tube is used for and the conducting fluid contacts with the sealing-plug
Surface is attached with forms thin liquid-metal layer with following substance：Paraffin or o-dihydroxy phenolic compound are with aminated compounds molten
Reactant under solution state.
In some optionally embodiment, the main body of the tube body and sealing-plug is using the hard or flexible material to insulate.
It is another object of the present invention to propose a kind of fluid resistance measurement method, this method is based on any of the above-described
Fluid resistance measuring device, including：Conductor fluid is filled in the pipeline in the hollow tube of fluid resistance measuring device, then led to
It crosses sealing-plug to block the nozzle of hollow tube, and ensures that electrode that sealing-plug is located in tube body is led with described at the position
Electrofluid contacts；The detection of resistance detection component is terminated at into the detecting electrode that sealing-plug is exposed to outside pipeline, obtains resistance inspection
Survey the resistance relevant parameter that component is shown.
Compared with prior art, the present invention has following advantage：
The present invention measures the resistance of conductor fluid using tube body, the resistance measurement of standards such as may be implemented, avoids laying
The influence of the various shapes to conducting wire during conducting wire, then there is the conductor fluid after measuring by this way to be easy to back
It receives, reduces the spillage of material in research process, in addition, the resistivity-measuring devices in the present invention are simple in structure, it is easy to measure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the resistivity-measuring devices in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the resistivity-measuring devices in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the resistivity-measuring devices in the embodiment of the present invention.
Specific implementation mode
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Put into practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment
Only represent possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can be with
Variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair
The range of bright embodiment includes equivalent obtained by the entire scope of claims and all of claims
Object.Herein, these embodiments of the invention can individually or generally be indicated that this is only with term " invention "
For convenience, it and if in fact disclosing the invention more than one, is not meant to automatically limit ranging from appointing for the application
What single invention or inventive concept.
First, the embodiment of the present invention can be understood faster for the ease of those skilled in the art, at this to the present invention's
Main thought is briefly described.The conductor fluid measurement method that this patent proposes is using law of connected vessels in a fixed length
Conductor fluid is perfused in the tube body of degree and internal diameter, then is embedded in electroded sealing-plug at the nozzle of tube body both ends, then in pipe
Conductor fluid leads to a constant current, to read the resistance value of conductor fluid by resistance monitor.It on this basis, can basis
The resistivity or conductivity of tube body sectional area and length computation conductor fluid.Equipment involved by the technical solution of this patent protection
It assembles, unpick and wash conveniently, easily operated, DATA REASONING precision is high, applied widely, to conductor fluid, especially to liquid metal
Research and application are of great significance.
Referring now to fig. 1, Fig. 1 shows the structural schematic diagram of the fluid resistance measuring device in the embodiment of the present invention, such as
Shown in the structural schematic diagram, the invention discloses a kind of fluid resistance measuring device, the resistance for measuring conductor fluid is related
Parameter, such as resistance value/resistivity/conductivity, method include：Hollow tube 1, tube body 1 have that be measured lead is perfused
The pipeline of electrofluid 5, and the nozzle positioned at the pipe ends；Conductor fluid 5 is filled into the pipeline by the nozzle
In or pour out from the pipeline；Two sealing-plugs 2, the nozzle for blocking the hollow tube 1 prevent the conduction after perfusion
Outflow/the leakage from nozzle of fluid 5 uses detachable connection between each sealing-plug 2 and the nozzle；Wherein, Mei Gesuo
It states and is respectively arranged with an electrode 3 for running through cock body on sealing-plug 2, one end of electrode 3 is used for and the conductor fluid 5 in pipeline
Contact, the other end of electrode are used as the detecting electrode for being connect with external detection device lotus root.
The device of the invention measures the resistance of conductor fluid, and the fluid resistance that the standards such as may be implemented measures, and avoids existing
There is the shape that the influence in technology due to many factors leads to the conducting wire being laid with by printing/mode of printing inconsistent.Further more,
It can be used repeatedly for device in the present invention, meets the measurement of various conductor fluids, by replacing conductor fluid or using identical
The mode of the device of specification measures the resistance of different conductor fluids, can form the unified comparative example of standard, with meet experimental study,
Industrial testing requirement.Third, the conductor fluid after measurement is recyclable, and way of recycling is easy to back by pouring out
It receives.4th, the flexible structure of measuring device of the invention is simple, low manufacture cost.
In some embodiments, the pipeline that the hollow structure in tube body 1 is formed is along extending direction (the i.e. length side of tube body
To), the section of pipeline is consistent, i.e., pipeline extends from direction geomery uniformity, and conductor fluid is avoided to be in tube body
When interior detection, the geomery of conductor fluid along its length is inconsistent, the problem of influencing the resistance value finally measured.At some
In other embodiment, the structure of the pipeline of tube body 1 also can be inconsistent, and fluid resistance measuring device, which may act on, at this time compares two kinds
Or the resistance difference of two or more conductor fluids.Preferably, the lumen diameter of tube body 1 can be round, rectangular, triangle, more
Side shape and other irregular shapes can meet the measurement to conductor fluid or comparison demand.
In some embodiments, insulating materials can be used in tube body 1, to ensure the normal electricity between conductor fluid and electrode
Connection, or non-insulating material is used, but need on non-insulating material surface to coat one or more layers insulating protective layer, it rises
To the effect of electric isolution.It is other hard that hard or flexible material, such as glass, plastics, silica gel etc. can be used in the material of itself of tube body 1
Matter or flexible material.Preferably, the material of tube body 1 should select transparent or semitransparent material, in order to pass through external observation
Observe perfusion situation of the conductor fluid in 1 pipeline of tube body.
In some embodiments, it is detachable mating connection between sealing-plug 2 and the port of tube body 1, with tube body 1
Port shape has certain correspondence, and to meet the requirement for blocking sealing and being connected, connection specifically may include screw thread
Other Typical physical connection types such as cooperation, plug-in cooperation, jacket-type cooperation and magnetic cooperation, are threadedly coupled such as in sealing-plug
Junction between 2 and tube body 1 is respectively arranged with male thread and box thread, and the two is connected by screw-thread fit；Plug-in connects
Then for example so that it is embedded into corresponding position in the nozzle of tube body 1 by way of extruding sealing-plug 2, realizes and block connection；
Then such as sealing-plug 2 is embedded in corresponding position outside the nozzle of tube body 1 by way of squeezing and being socketed for jacket-type connection, realizes envelope
Stifled connection.Magnet steel is respectively set in junction setting of the magnetic cooperation such as between sealing-plug 2 and tube body 1, is attracted, detaches when close
When dismantled by certain dynamics.Those skilled in the art be to be understood that above-mentioned connection type can be combined with each other or with it is existing
Other connection types combination in technology constitutes the connection structure of the sealing-plug 2 in this programme, wherein holding part, sealing can be used
The cooperations such as gasket, fluid sealant.
Preferably, it is in segmentation structure, including cock body and block head, the bore and pipeline of block head based on sealing-plug 2
Nozzle correspond to, by way of a small amount of interference at the nozzle, cock body is then held at nozzle；Wherein, the outside of block head
It can be inserted in and clamping has a magnetic steel ring, magnetic steel ring to be bonded with cock body, block head is still partially exposed at outer for being embedded in nozzle.
And be again provided with the magnet coordinated with magnetic steel ring on the outside of the nozzle of tube body, the two by a small amount of interference of block head and nozzle and
Magnetic is connected and seals.
When sealing-plug 2 is assembled at the nozzle of tube body 1, the gas extrusion be easy to causeing in pipeline is unfavorable for the row of gas
Going out, there are deformation spaces for the conductor fluid for causing in pipe, influence the resistance measurement effect of conductor fluid, in some embodiments,
At least there is the stomata that cock body is provided through on a sealing-plug, and the gas with stomata cooperation in described two sealing-plugs 2
Plug, stomata are used in 2 extrusion pipe of sealing-plug, extruded air are discharged, after sealing-plug 2 is completed, then passes through gas
Plug blocks stomata, reduces the existing air in pipeline as far as possible, to reduce the deformation space of conductor fluid.Preferably,
Two sealing-plugs 2 are all made of above-mentioned air hole structure, and to solve when conductor fluid autologous density is larger, bubble can not pass through gravity
The reason of the problem of smoothly being led to the other end from one end.
Insulating materials can be used (in addition to its top electrode) in the main body of sealing-plug 2, consistent with the insulation function and effect of tube body, again
Or non-insulating material is used, but need on non-insulating material surface to coat one or more layers insulating protective layer.Sealing-plug 2
Hard or flexible material can be used in main body, such as glass, plastics, silica gel, wooden etc. have certain degree of hardness, can meet closure sealing
The material of intensity.
Preferably, sealing-plug 2 uses flexible material at least one in tube body 1, in order to be realized by way of extruding
Sealing blocking.
Conductive fiber flexible, conductive fabric etc. can be used in electrode 3 on sealing-plug 2, can also use the solid-state gold of hard
Belong to or other hard electrodes, shape can be Else Rules or the irregular shapes such as Filamentous, needle-shaped, sheet；Preferably, electrode passes through
Small size should be used by wearing the structure of 2 position of sealing-plug, such as needle-shaped, Filamentous, in order to use.Sealing-plug 2 can pass through injection molding/injection molding
Mode realize the connection with electrode 3.
Such as Fig. 2, in some embodiments, resistivity-measuring devices may also include temperature control system (attached drawing is not shown), including with
In the temperature sensing assembly for monitoring the temperature of conductor fluid in the pipeline, and for adjusting conductor fluid in the pipeline
The temperature-controlling module of temperature.Preferably, temperature sensing probe can be used in temperature sensing assembly, in order to be fitted in tube body table
Face.Heating coil then can be used in temperature-controlling module, is sleeved on/is arranged outside tube body, also or using it is in the prior art its
Its electric-heating assembly/equipment.
In some embodiments, temperature sensing assembly and temperature-controlling module may be provided in the different interlayers of tube body,
Input and/or output lead are drawn from the surface of tube body.
Due to one of an important factor in measurement resistance field, temperature is as influence resistance, therefore, in some embodiments
In, temperature sensing assembly can cast temperature control system aside and be independently arranged, to obtain temperature as the measurement factor of obtained resistance parameter.
Preferably, temperature sensor can be used sticking type with temperature control system and coordinate with tube body, when not in use, separable with tube body.
In some embodiments, temperature-controlling module can also use the structure for being easy to tube body separation, be such as bonded or coat,
In some embodiments, temperature control box can be used in temperature system, and fluid resistance measuring device is then placed in the temperature control box.
In some embodiments, the resistivity-measuring devices further include：Resistance detection component 4, for by described in connection
Detecting electrode, the resistance relevant parameter of the conductor fluid in measurement pipe body.Specifically, current city can be used in resistance detection component 4
Resistance monitor on face.
In some embodiments, the conductor fluid in the present invention refers to having certain conductive capability and with certain flowing
The liquid of ability, liquid can be as preferable such as watery mobility, also can be that thick mobility is poor.Specifically, conductor fluid can
Including ion electrolyte, liquid metals and its mixture, electrocondution slurry (such as conductive carbon paste, conductive silver paste), conducting polymer
Material etc..
Preferably, the fluid resistance measuring device in the embodiment of the present invention can be applied to measure liquid metal and its mixture
Resistance, liquid metal is also known as low-melting-point metal comprising fusing point is in 300 degrees Celsius of low-melting-point metal simple substance below or conjunction
Gold, alloying component include gallium, indium, tin, zinc, bismuth, lead, cadmium, mercury, silver, copper, sodium, potassium, magnesium, aluminium, iron, nickel, cobalt, manganese, titanium, vanadium,
One or more in boron, carbon, silicon etc., form can be metal simple-substance, alloy, can also be metal nanoparticle and fluid
The electrical-conductive nanometer fluid that dispersant is formed.Specifically, fluid dispersion is preferably ethyl alcohol, propylene glycol, glycerine, polyethylene
One kind in pyrrolidones, dimethyl silicone polymer, polyethylene glycol, polymethyl methacrylate.
Specifically, liquid metal includes mercury, gallium, indium, tin simple substance, gallium-indium alloy, gallium-indium-tin alloy, gallium tin alloy, gallium zinc
Alloy, gallium indium kirsite, gallium red brass, gallium indium red brass, gallium tin cadmium alloy, gallium Zn-Cd alloy, bismuth indium alloy, bismuth tin close
Gold, bismuth indium stannum alloy, bismuth indium kirsite, bismuth red brass, bismuth indium red brass, leypewter, gun-metal, tin zinc-copper close
One or more of gold, Tin Silver Copper Alloy, bismuth terne metal.This kind of low-melting-point metal has outstanding electric conductivity and liquid phase stream
Dynamic property, therefore have unique application value in novel electron structure manufacturing field.
In some embodiments, temperature-resistant material (referring mainly to tube body and cock body) integrally can be used in fluid resistance measuring device,
To support temperature control system heating that liquid metal is made to be in molten condition.
Preferably, liquid metal can be used fusing point less than 30 DEG C of liquid metal include gallium, indium, tin, zinc, bismuth, lead, cadmium,
One or more of mercury, silver, copper, sodium, potassium, magnesium, calcium, aluminium, iron, nickel, cobalt, manganese, titanium, vanadium, antimony element；The fusing point is less than 30
DEG C Liquid metal composite material include the fusing point less than 30 DEG C simple substance, at least one of alloy and metal powder, metal oxygen
The mixture of at least one of compound powder, inorganic non-metallic powder, macromolecule powder, organic compound；The metal powder include silver powder,
At least one of bronze, copper powder, nickel powder, cobalt powder, iron powder, zinc powder, titanium valve, chromium powder, magnesium powder；The metal oxide powder includes oxygen
Change at least one of copper, iron oxide, aluminium oxide, zirconium oxide, zinc oxide, zinc oxide, titanium oxide, magnesia, vanadium oxide；The nothing
Machine non-metal powder includes carbon dust, graphene, carbon nanotube, silica, boron nitride, silicon nitride, silicon carbide, glass fibre, silicon
At least one of diatomaceous earth, vermiculite, zeolite, barium titanate, calcium silicates and alumina silicate；The macromolecule powder include polyaniline, polyacetylene,
At least one of polythiophene, polypyrrole, polyparaphenylene, polyphenylene sulfide；The organic compound is at least one in sulfhydryl compound
Kind；The size of filling powder in the composite material is 5 nanometers~100 microns；The filer content is 0.5%~40%.
Wherein, the variation of melting point curve shown by phasor of the fusing point of liquid metal alloy by the alloy has been expired using corresponding proportioning
Foot fusing point requirement.
In some embodiments, the hollow tube is used for attached with the surface of the conducting fluid contacts with the sealing-plug
It and thin liquid-metal layer is formed with following substance：Paraffin or o-dihydroxy phenolic compound and aminated compounds are in dissolved state
Under reactant.Preferably, liquid-metal layer is dredged in the present invention is reacted by o-dihydroxy phenols and the amino in amine
Generated, property is stable and reaction is irreversible, can keep its layer of structure for a long time.
The present invention is directed to resistivity-measuring devices, also discloses preferred embodiment below：
Preferred embodiment 1
A kind of liquid metal resistivity-measuring devices, by a root long be 40cm, internal diameter be 2.5mm hollow silica gel tube, two sets
Sealing-plug, two root longs are 5cm, the copper wire of a diameter of 1mm, a resistance measuring instrument are constituted.As shown in Fig. 3 (a), sealing-plug is poly-
Tetrafluoroethene screw thread female Luer, connector one end are connect with silica gel hose, and other end central punch fixes copper wire electrode, two connectors
It is connected through a screw thread.Copper wire electrode one end is stretched into silicone tube and liquid metal contacts, and the other end is surveyed outside silicone tube with resistance
The measurement head of amount instrument is in direct contact.
Preferred embodiment 2
A kind of liquid metal resistivity-measuring devices, by a root long be 40cm, internal diameter be 10mm hollow polyethylene pipe, two
Sealing-plug, two root longs are the copper wire of 3cm, a diameter of 0.5mm, the copper sheet of four 6*6mm, a resistance measuring instrument composition.Such as Fig. 3
(b) shown in, sealing-plug is fluorubber jacket-type sealing-plug, the fixed copper wire electrode of middle part punching.Copper sheet is welded at copper wire electrode both ends,
Electrode one end is stretched into hose and is in direct contact with the measurement head of resistance measuring instrument outside hose with liquid metal contacts, the other end,
Pellet electrode is big compared with the contact area of wire electrode, can reduce contact resistance, reduces measurement error.
Preferred embodiment 3
A kind of liquid metal resistivity-measuring devices, by a root long be 60cm, internal diameter be 5mm hollow polypropylene pipe, two
Sealing-plug, two root longs are the copper wire of 3cm, a diameter of 0.1mm, the copper sheet of two panels 15*15mm, a resistance measuring instrument composition.Such as
Shown in Fig. 3 (c), sealing-plug is ABS plug-in sealing-plugs, the fixed copper wire electrode of middle part punching.Hose is stretched into copper wire electrode one end
Interior and liquid metal contacts, in hose external welding copper sheet, the measurement head of copper sheet and resistance measuring instrument is in direct contact the other end, to increase
Large access area reduces contact resistance, reduces measurement error.
It is another object of the present invention to propose a kind of fluid resistance measurement method, this method is based on any of the above-described
Fluid resistance measuring device, including：Conductor fluid is filled in the pipeline in the hollow tube of fluid resistance measuring device, then led to
It crosses sealing-plug to block the nozzle of hollow tube, and ensures that electrode that sealing-plug is located in tube body is led with described at the position
Electrofluid contacts；The detection of resistance detection component is terminated at into the detecting electrode that sealing-plug is exposed to outside pipeline, obtains resistance inspection
Survey the resistance relevant parameter that component is shown.
The present invention is directed to above-mentioned measurement method, and a preferred embodiment is also disclosed, and the wherein tube body of resistivity-measuring devices uses
Flexible insulation material, specific measurement method include：
1) silica gel tube body is bent to form contour U-tube, and be fixed；
2) with syringe absorption GaIn liquid metals, (step should keep needle point to submerge in liquid metal always, prevent from inhaling
Enter air)；
3) the syringe needle point inserting step 1 of liquid metal will have been drawn in step 2)) in U-tube in any opening,
Liquid metal is injected into pipe；(because liquid metal density is big, liquid metal can automatically flow into U-tube bottom, and due to even
Logical device principle, liquid metal can from U-tube bottom to both ends open from gradually fill, to which inner air tube more fully hereinafter be discharged)
4) after liquid metal is filled up completely full U-tube, with being fixed with the sealing-plug (nipple) of copper wire electrode by U-shaped
Pipe both ends open seals；Stomata in the process on cock body is in the open state, and gas is blocked by vent plug respectively after the completion of component
Hole reduces residual air.
5) measurement head of resistance measuring instrument is contacted with flexible pipe two end electrodes in step 4), measures its resistance；；
6) silicone tube is removed after reading resistance value, opens both ends screw socket sealing-plug, intraluminal fluid state metal flows out automatically；
7) silicone tube, sealing-plug, copper wire electrode are rinsed repeatedly with sodium hydrate aqueous solution and ethanol solution respectively；
8) silicone tube, sealing-plug, copper wire electrode that are cleaned in step 7) are dried.
The present invention by above-described embodiment, can avoid being filled into the conductor fluid in tube body generate bubble, influence detection/
It measures.
In certain embodiment, the resistance value 5 times of GaIn liquid metals is tested with the resistance measuring instrument, and it is flat to calculate its resistance
Mean value is 0.02614 Europe, passes through formula(σ is conductivity, and R is the resistance of the liquid metals of resistance measuring instrument test
The length of liquid metal is perfused in value, L between flexible pipe two end electrodes end, and d is flexible bore), calculating its conductivity is
3.259*106S/m。
It should also be appreciated by one skilled in the art that various illustrative logical boxs, mould in conjunction with the embodiments herein description
Electronic hardware, computer software or combinations thereof may be implemented into block, circuit and algorithm steps.In order to clearly demonstrate hardware and
Interchangeability between software surrounds various illustrative components, frame, module, circuit and step its function above and carries out
It is generally described.It is implemented as hardware as this function and is also implemented as software, depends on specific application and to entire
The design constraint that system is applied.Those skilled in the art can be directed to each specific application, be realized in a manner of flexible
Described function, it is still, this to realize that decision should not be construed as the protection domain away from the disclosure.
Claims (10)
1. a kind of fluid resistance measuring device, which is characterized in that including：
Hollow tube has the pipeline of conductor fluid to be measured is perfused, and positioned at the nozzle of the pipe ends, leads
Electrofluid is filled into the pipeline by the nozzle or is poured out from the pipeline；
Two sealing-plugs, the nozzle for blocking the hollow tube, using detachable between each sealing-plug and the nozzle
Formula connects；
Wherein, be respectively arranged with an electrode for running through cock body on each sealing-plug, one end of electrode be used for positioned at pipeline
Interior conducting fluid contacts, the other end of electrode is as detecting electrode.
2. fluid resistance measuring device according to claim 1, which is characterized in that along the extension side of the hollow tube
To the section of the pipeline is consistent.
3. fluid resistance measuring device according to claim 1, which is characterized in that between the sealing-plug and the nozzle
It is connected by way of one of following or arbitrarily combine：
Screw-thread fit, plug-in cooperation, jacket-type cooperation and magnetic cooperation.
4. fluid resistance measuring device according to claim 3, which is characterized in that at least exist in described two sealing-plugs
The stomata of cock body, and the vent plug with stomata cooperation are provided through on one sealing-plug.
5. fluid resistance measuring device according to claim 1, which is characterized in that further include：
Temperature sensing assembly, the temperature for monitoring conductor fluid in the pipeline.
6. fluid resistance measuring device according to claim 5, which is characterized in that further include：
Temperature control system, the temperature control system include the temperature sensing assembly, further include：Temperature-controlling module, for adjusting
State the temperature of conductor fluid in pipeline.
7. fluid resistance measuring device according to claim 1, which is characterized in that further include：Resistance detection component, is used for
By connecting the detecting electrode, the resistance relevant parameter of the conductor fluid in pipeline is measured.
8. fluid resistance measuring device according to claim 1, which is characterized in that the conductor fluid includes liquid metal
Or the conductive mixture based on liquid metal；
The hollow tube is used to be attached with the surface of the conducting fluid contacts and be formed with following substance with the sealing-plug
Dredge liquid-metal layer：
Paraffin or o-dihydroxy phenolic compound and reactant of the aminated compounds under dissolved state.
9. fluid resistance measuring device according to claim 1, which is characterized in that the main body of the tube body and sealing-plug is adopted
With the hard or flexible material of insulation.
10. a kind of fluid resistance measurement method, which is characterized in that including：
Conductor fluid is filled to the pipeline in the hollow tube such as claim 1-9 any one of them fluid resistance measuring devices
In, then by sealing-plug the nozzle of hollow tube is blocked, and ensure electrode that sealing-plug is located in tube body at the position
The conducting fluid contacts；
The detection of resistance detection component is terminated at into the detecting electrode that sealing-plug is exposed to outside pipeline, it is aobvious to obtain resistance detection component
The resistance relevant parameter shown.
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| CN111965432A (en) * | 2020-07-08 | 2020-11-20 | 中国石油大学(北京) | Solution resistivity measuring device |
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