CN107505023A - Three electric pole type drilling water level intelligent monitors and its monitoring method - Google Patents
Three electric pole type drilling water level intelligent monitors and its monitoring method Download PDFInfo
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- CN107505023A CN107505023A CN201710957093.0A CN201710957093A CN107505023A CN 107505023 A CN107505023 A CN 107505023A CN 201710957093 A CN201710957093 A CN 201710957093A CN 107505023 A CN107505023 A CN 107505023A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 230000015654 memory Effects 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 3
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000003673 groundwater Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
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- Life Sciences & Earth Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of three electric pole type drilling water level intelligent monitors, including single-chip microcomputer, single-chip microcomputer is connected with electric power system, first switch triode, second switch triode, sim module and memory respectively, the positive pole of electric power system is connected with A/D converter, first, second switch triode respectively, the negative pole of electric power system is connected with fixed resistance, fixed resistance is connected with C electrodes, and first switch triode is connected with A electrodes, and second switch triode is connected with B electrodes；First, second switch triode is controlled by single-chip microcomputer sends pulse, and first, second switch triode of control is turned on or off.The present invention also discloses the monitoring method using the monitor.Its principle is simple, and the degree of accuracy is high, can greatly improve drilling water level monitoring, measurement efficiency.
Description
Technical field
The present invention relates to a kind of water level monitoring equipment and monitoring method, especially a kind of three electric pole type drilling water levels are intelligently examined
Survey instrument and monitoring method.
Background technology
Water level monitoring is applied to many fields in life, for hydrological observation, the observation of Urban Underground water level and all relates to
And hydrology drilling field, its hydrological observation rest on using combination tool manual measurement mostly, i.e., using lining rope, survey clock, electric wire,
Depth transducer and universal meter rely on artificial observation and judgement, cause whole observation process to be wasted time and energy, and accuracy of observation is very low.
Chinese patent application 201510371413.5, disclose a kind of high water tank monitoring device, including first electrode,
Two electrodes, the 3rd electrode, the 4th electrode, the first control unit, the second control unit, first switch unit, second switch unit,
Buzzer, the first relay and the second relay, the first electrode and the second electrode mutually insulated and it is fixed on storage
At the first preset height inside water installations, the 3rd electrode and the 4th electrode mutually insulated and water storage device is fixed on
At the second internal preset height, first preset height is higher than second preset height.The patent is adapted to industrial pot
Stove, civil buildings millpond, water tower, water tank, and the industry such as petrochemical industry, papermaking, food, sewage disposal inner opening or closed
Storage tank, the level gauging of various liquid in underground pond groove.When water level exceedes predetermined altitude, alarmed, the patent emphasis exists
In judging whether water level reaches setting height, and lack the real-time measurement to height of water level.
Chinese patent application 201610420704.3, a kind of alluvial and water-level instrumentation and its application process are disclosed, is become silted up
Product and water-level instrumentation include monitoring main frame (6) and alluvial and level sensor (8), and alluvial and level sensor are strip,
Multiple electrodes (7) are distributed along its length.The alluvial of strip and the length direction of level sensor are disposed vertically downward, measurement
The capacitance of each electrode；It is different according to each electrode capacitance value, and the spacing between each electrode, show that alluvial is thick in real time
Degree.The present invention can monitor water level and alluvial simultaneously, that is, monitor the water surface and monitor the bottom simultaneously again, can be for a long time without manually doing
The thickness of pre- monitoring mud, the height of water level, the situation of change of deposition rule, water level in analysis mud, and measuring and calculating storehouse
Perhaps current.The patent is used to survey the depth of water using static pressure type level sensor and it is necessary to ensures alluvial and level sensor
The enough weight of shell, vertical subsidence be not vertical crooked into guarantee when mud and alluvial.Therefore, the patent is in measurement Drilling Water
It is difficult to meet condition during position, and detection accuracy is low.
Chinese patent application 201610696792.X, a kind of device and method of accurate measurement level of ground water is disclosed, should
The depth transducer and Surface electrode of device are believed with the depth transducer signal input part and Surface electrode of collector respectively
The connection of number input wire；Electrode signal input cable connection in the well of electrode and collector in 2 wells；Collector includes report
Alert module and data processing module；Start alarm when alarm module electrode sensor in well contacts with groundwater level；Depth
Sensor monitoring in real time is with the decentralization depth that cable when in well is put under level electrode sensor；Data processing module is according to electrode
Collection result calculates accurate Ground-water level.The patent water by the resistance between electrode in 2 wells, Surface electrode with
Whether infinitely great and depth transducer the reading of resistance in 2 wells between electrode, it is main still to be surveyed by depth transducer
Measure level of ground water.Although the degree of accuracy for measuring water level is very high, whole process complex operation, and lacks automatic, intelligence
Change monitoring, technical merit is also rested on by depth transducer and artificial observation to realize the measurement of water level.
Chinese patent 201620232868.9, a kind of rotary-type water decanter at the uniform velocity water-level control apparatus is disclosed, including：Water
Position monitoring unit and water decanter control unit；Water level monitoring unit is fixedly connected with straining for water decanter on the outside of tank, water level prison
Surveying unit includes electrode fixed cylinder and is installed on sequentially high low head is set in cylinder high level electrode, middle position electrode and low level
Electrode, water decanter control unit include a frequency-variable module and the electrode signal modular converter being connected with frequency-variable module, electrode letter
Number modular converter is connected with high level electrode, middle position electrode and low position electrode respectively via wire, by electrode set into water
Position change is turned on or off corresponding high level electrode, middle position electrode and low position electrode, frequency converter corresponding to high level electrode,
Middle position electrode and the signal strength of low position electrode output make corresponding frequency conversion change, for water decanter uniform descent.This is special
The difference in height of three electrodes correspondingly strains the setting of water height of water level in profit；Emphasis judged when water level reaches setting height, without
Water level can be measured.
The content of the invention
The purpose of the present invention is that accuracy of observation is low to overcome the scattered of above-mentioned existing testing tool, and the time put into
With manpower it is excessive the problem of, there is provided a kind of three electric pole type drilling water level intelligent monitors and its monitoring method, its principle is simple, accurate
Exactness is high, can greatly improve drilling water level monitoring, measurement efficiency.
To achieve the above object, the present invention uses following technical proposals：
A kind of three electric pole type drilling water level intelligent monitors, including single-chip microcomputer, the single-chip microcomputer respectively with electric power system, the
One switch triode, second switch triode, sim module are connected with memory, and the positive pole of the electric power system turns with A/D respectively
Parallel operation, the connection of first, second switch triode, the negative pole of electric power system are connected with fixed resistance, and fixed resistance connects with C electrodes
Connect, first switch triode is connected with A electrodes, and second switch triode is connected with B electrodes；The electrodes of ABC tri- are touching water
When, by the electric conductivity of water, AC or BC loops are formed, the magnitude of voltage in AC loops or BC loops are read using A/D converter, so
After be converted to data signal, it is defeated back to single-chip microcomputer, A electrode resistances and linear in length, A electrodes hell is calculated extremely
The resistance value of drilling water level height, accurately calculate the water level of drilling；First, second switch triode is controlled by single-chip microcomputer
Pulse is sent, first, second switch triode of control is turned on or off；
The ABC electrodes are made up of different resistivity material, and A electrodes are nickel-chromium resistance wire, and B electrodes and C electrodes are constantan
Resistance wire；
Described tri- electrodes of ABC are cased with the first pvc pipe into triangular arranged in ABC electrodes on each electrode,
Three overall outsides of electrode are cased with the second pvc pipe, and each pvc pipe surface is evenly equipped with permeable hole.
The sim module is by wireless signal by the magnitude of voltage information transmission of processing to cloud service.
The single-chip microcomputer, A/D converter, holder and sim module are packaged in same confined space, by drawing day
Line, realize that WEB is inquired about.
The electrodes of ABC tri- pass through cable connection, during the decentralization of the electrodes of ABC tri- is drilled, single-chip microcomputer, A/D converter, storage
Device and sim module place hell external position.
A kind of monitoring method using three electric pole type drilling water level intelligent monitors, comprise the following steps:
A. A/D converter, single-chip microcomputer, holder and sim module are placed in outside hell；
B. transferred to after the electrodes of ABC tri- are connected in well, the electrode bottoms of ABC tri- are located in hell, when electrode is grown
When degree is reached below drilling water level, AC or BC loops can be formed using the electric conductivity of water；
C. inquired about by WEB, when collection first, second switch triode of reading simultaneously switches off, the voltage of A/D converter
Value, when magnitude of voltage is less than setting value, electric power system not enough power supply is prompted, before measurement, A/D converter input voltage is power supply electricity
Press U0；
D. pulse is sent to first switch triode by single-chip microcomputer, now AC loops turn on, and BC loops disconnect, and read A/
The magnitude of voltage in the AC loops of D converters is UAC, then stop sending pulse to first switch triode；
E. pulse is sent to second switch triode by single-chip microcomputer, now AC loops disconnect, and the conducting of BC loops, read A/
The magnitude of voltage in the BC loops of D converters is UBC；
F. because A electrode resistance rates B, C electrode resistance rate that compares is bigger, and A electrode resistances are directly proportional to length, BC
Resistivity is ignored, and thus according to series circuit current is equal and the linear relationship of resistance and resistivity, there is equation below：
RA=ρAL (3)
RA=RAC-RBC (4)
Wherein U0For power supply, UACThe voltage between the AC electrodes of AC loops, UBCThe voltage between the BC electrodes of BC loops, R0For
Know fixed resistance, RACFor AC loop resistances, RBCFor BC loop resistances, L is A electrode resistance filament length degree, ρAFor A electrode resistance rates,
Because BC electrode resistances are ignored, then there is equation below：
L is distance of the ground to water level.
The invention provides a kind of device and method of intelligent, accurate measurement drilling water level.In practicality, it is only necessary to ABC
Be put under electrode in observation drilling, the electrodes of ABC tri- touch water when, by the electric conductivity of water, form AC or BC loops；
Pulse is sent to first switch triode and second switch triode by single-chip microcomputer, AC loops is switched on or off and BC is returned
Road；The magnitude of voltage in AC loops or BC loops can be read using A/D converter；Handle and control by single-chip microcomputer, voltage swing warp
Cross conversion, A electrodes hell can be calculated to the resistance value of drilling water level height, but due to A electrode resistances and length into
Linear relationship, cloud service is uploaded to, WEB inquiries, is realized to the resistance value of drilling water level, sim module so as to calculate hell
The intelligent monitoring of drilling water level, measurement.
Compared to prior art, the present invention has advantages below：
(1) present invention utilizes the resistance between the electrodes of ABC tri-, and principle is simple, and the degree of accuracy is high, can greatly improve drilling water level
Monitoring, measurement efficiency.
(2) present invention has covered pvc pipe by independent outside the electrodes of ABC tri-, and permeable hole is arranged on pvc pipe, while outside
One big pvc pipe of surface cover, permeable hole all on cloth, effectively plays protective effect on pvc pipe.
(3) present invention is handled by single-chip microcomputer, and the magnitude of voltage that can be read to A/D converter is preserved, by SIM moulds
Block is uploaded to cloud service, is easy to WEB to inquire about, and ensure that significantly to water level monitoring, the long-range of measurement, intelligent operation.
(4) present invention setting self-test prompting, when first, second switch triode all disconnects, magnitude of voltage is read in A/D conversions
Less than setting value (such as voltage is less than 10V), electricity shortage is prompted.
(5) accuracy of observation of the present invention is high, can realize automation, intelligentized measurement.
Brief description of the drawings
Fig. 1 is ABC electrode figures；
Fig. 2 is overall structure diagram of the present invention；
Wherein, 1. electric power system, 2.A electrodes, 3. first switch triodes, 4. single-chip microcomputers, 5.SIM modules, 6. memories,
7.A/D converters, 8. fixed resistances, 9.B electrodes, 10.C electrodes, 11. second switch triodes.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating in disclosed in specification
Hold, so that those skilled in the art understands and reads, be not limited to the enforceable qualifications of the present invention, therefore do not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size, it can be produced not influenceing the present invention
Under the effect of raw and the purpose that can reach, all should still it fall in the range of disclosed technology contents are obtained and can covered.
Meanwhile cited such as " on ", " under " in this specification, "left", "right", the term of " centre " and " one ", it is merely convenient to
Narration understands, and is not used to limit the enforceable scope of the present invention, and its relativeness is altered or modified, without substantive change
Under technology contents, when being also considered as the enforceable category of the present invention.
As shown in Figure 1 and Figure 2, three electric pole type drilling water level intelligent monitor, including single-chip microcomputer 4, the single-chip microcomputer 4 are distinguished
It is connected with electric power system 1, first switch triode 3, second switch triode 11, sim module 5 and memory 6, the power supply system
The positive pole of system 1 connects 3,11 with A/D converter 7, first, second switch triode respectively and connect, the negative pole of electric power system 1 and fixed electricity
The connection of resistance 8, fixed resistance 8 is connected with C electrodes 10, and first switch triode 3 is connected with A electrodes 2, second switch triode 11 and
B electrodes 9 connect；The electrodes of ABC tri- by the electric conductivity of water, are formed AC or BC loops, turned using A/D when water is touched
Parallel operation 7 reads the magnitude of voltage in AC loops or BC loops, is then converted into data signal, defeated back to 89C51 single-chip microcomputers 4, A electrodes 2
Resistance and linear in length, A electrodes hell is calculated to the resistance value of drilling water level height, accurately calculates brill
The water level in hole；First, second switch triode 3,11 controls transmission pulse, the switch of control first, second three by single-chip microcomputer 4
Pole pipe 3,11 is turned on or off；The present invention is controlled by single-chip microcomputer 4 by switch triode, realizes intelligent monitoring.
ABC electrodes are made up of different resistivity material, and A electrodes 2 are the high nickel-chromium resistance wire of resistivity, B electrodes 9 and C electricity
Pole 10 is the constantan-made resistances silk of resistivity very little, and resistivity is milliohm level, be can be ignored；Tri- electrodes of ABC are into equilateral
Rounded projections arranged, the first pvc pipe is cased with each electrode in ABC electrodes, prevents electrode from contacting with each other, three electrode entirety
Outside be cased with the second pvc pipe, each pvc pipe surface is evenly equipped with permeable hole, it is ensured that drilling water level can contact electrode, so as to
Using the electric conductivity of water, AC or BC loops are formed.
Sim module 5 by the magnitude of voltage information transmission of processing to cloud service, carries out WEB inquiries, Yi Jitong by wireless signal
Cloud service reception signal is crossed, control single chip computer sends pulse.
Single-chip microcomputer 4, A/D converter 7, holder 6 and sim module 5 are packaged in same confined space, by drawing day
Line, realize that WEB is inquired about.WEB is inquired about, for recording the voltage between AC loops and BC loops, and according to Ohm's law, resistivity
Linear relationship between length, it can accurately calculate the water level of drilling.
The electrodes of ABC tri- pass through cable connection, during the decentralization of the electrodes of ABC tri- is drilled, single-chip microcomputer 4, A/D converter 7, holder
6 and sim module 5 place hell external position.
A kind of monitoring method using three electric pole type drilling water level intelligent monitors, comprise the following steps:
A. A/D converter 7, single-chip microcomputer 4, holder 6 and sim module 5 are placed in outside hell；
B. transferred to after the electrodes of ABC tri- are connected in well, the electrode bottoms of ABC tri- are located in hell, when electrode is grown
When degree is reached below drilling water level, AC or BC loops can be formed using the electric conductivity of water；
C. inquired about by WEB, when collection first, second switch triode 3,11 of reading simultaneously switches off, self-test can be set,
The magnitude of voltage of A/D converter 7, when magnitude of voltage is less than setting value, prompt electric power system not enough power supply, before measurement, A/D converter
7 input voltages are supply voltage U0；
D. pulse is sent to first switch triode 3 by single-chip microcomputer 4, now AC loops turn on, and BC loops disconnect, and read
The magnitude of voltage in the AC loops of A/D converter 7 is UAC, then stop sending pulse to first switch triode 3；
E. pulse is sent to second switch triode 11 by single-chip microcomputer 4, now AC loops disconnect, and the conducting of BC loops, read
The magnitude of voltage for taking the BC loops of A/D converter 7 is UBC；
F. because the A electrode resistance rates BC electrode resistance rates that compare are bigger, and A electrode resistances are directly proportional to length, BC
Resistivity is ignored, and thus according to series circuit current is equal and the linear relationship of resistance and resistivity, there is equation below：
RA=ρAL (3)
RA=RAC-RBC (4)
Wherein U0For power supply, UACThe voltage between the AC electrodes of AC loops, UBCThe voltage between the BC electrodes of BC loops, R0For
Know fixed resistance, RACFor AC loop resistances, RBCFor BC loop resistances, L is A electrode resistance filament length degree, ρAFor A electrode resistance rates,
Because BC electrode resistances are ignored, then there is equation below：
L is distance of the ground to water level.
In the present embodiment, three electric pole type drilling water level monitors have three kinds of working conditions：One is AC loops and BC loops
All off-states；Two be that AC circuit switchings triode turns on, and BC circuit switchings triode disconnects；Three be AC circuit switching triodes
Disconnect, BC circuit switching triode ONs.
Handled in the present embodiment by single-chip microcomputer, on the one hand single-chip microcomputer sends pulse, conducting or disconnected to switch triode
Loop is opened, the magnitude of voltage that A/D is returned on the other hand is handled, by sim module, is uploaded to cloud service, is easy to WEB to inquire about.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (5)
1. a kind of three electric pole type drilling water level intelligent monitors, it is characterized in that, including single-chip microcomputer, the single-chip microcomputer respectively with power supply
System, first switch triode, second switch triode, sim module are connected with memory, the positive pole difference of the electric power system
It is connected with A/D converter, first, second switch triode, the negative pole of electric power system is connected with fixed resistance, fixed resistance and C
Electrode is connected, and first switch triode is connected with A electrodes, and second switch triode is connected with B electrodes；The electrodes of ABC tri- are contacting
When to water, by the electric conductivity of water, AC or BC loops are formed, the electricity in AC loops or BC loops is read using A/D converter
Pressure value, data signal is then converted into, it is defeated back to single-chip microcomputer, A electrode resistances and linear in length, A electrodes are calculated
Hell accurately calculates the water level of drilling to the resistance value of drilling water level height；First, second switch triode is by list
The control of piece machine sends pulse, and first, second switch triode of control is turned on or off；
The ABC electrodes are made up of different resistivity material, and A electrodes are nickel-chromium resistance wire, and B electrodes and C electrodes are constantan-made resistances
Silk；
Described tri- electrodes of ABC are cased with the first pvc pipe into triangular arranged on each electrode in ABC electrodes, three
The overall outside of electrode is cased with the second pvc pipe, and each pvc pipe surface is evenly equipped with permeable hole.
2. three electric pole types drilling water level intelligent monitor as claimed in claim 1, it is characterized in that, the sim module passes through nothing
Line signal is by the magnitude of voltage information transmission of processing to cloud service.
3. three electric pole types drilling water level intelligent monitor as claimed in claim 1, it is characterized in that, the single-chip microcomputer, A/D conversions
Device, holder and sim module are packaged in same confined space, by drawing antenna, realize that WEB is inquired about.
4. three electric pole types drilling water level intelligent monitor as claimed in claim 1, it is characterized in that, the electrodes of ABC tri- pass through
Cable connection, in the decentralization drilling of the electrodes of ABC tri-, single-chip microcomputer, A/D converter, holder and sim module are placed outside hell
Position.
5. a kind of monitoring method using three electric pole type drilling water level intelligent monitors, it is characterized in that, comprise the following steps:
A. A/D converter, single-chip microcomputer, holder and sim module are placed in outside hell；
B. transferred to after the electrodes of ABC tri- are connected in well, the electrode bottoms of ABC tri- are located in hell, when electrode length reaches
When below to drilling water level, AC or BC loops can be formed using the electric conductivity of water；
C. inquired about by WEB, when collection first, second switch triode of reading simultaneously switches off, the magnitude of voltage of A/D converter, when
When magnitude of voltage is less than setting value, electric power system not enough power supply is prompted, before measurement, A/D converter input voltage is supply voltage U0；
D. pulse is sent to first switch triode by single-chip microcomputer, now AC loops turn on, and BC loops disconnect, and read A/D and turn
The magnitude of voltage in the AC loops of parallel operation is UAC, then stop sending pulse to first switch triode；
E. pulse is sent to second switch triode by single-chip microcomputer, now AC loops disconnect, and the conducting of BC loops, read A/D and turn
The magnitude of voltage in the BC loops of parallel operation is UBC；
F. because A electrode resistance rates B, C electrode resistance rate that compares is bigger, and A electrode resistances are directly proportional to length, BC resistance
Rate is ignored, and thus according to series circuit current is equal and the linear relationship of resistance and resistivity, there is equation below：
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RA=RAC-RBC (4)
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Determine resistance, RACFor AC loop resistances, RBCFor BC loop resistances, L is A electrode resistance filament length degree, ρAFor A electrode resistance rates, due to
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<mo>&times;</mo>
<msub>
<mi>R</mi>
<mn>0</mn>
</msub>
</mrow>
<mrow>
<msub>
<mi>U</mi>
<mn>0</mn>
</msub>
<mo>-</mo>
<msub>
<mi>U</mi>
<mrow>
<mi>B</mi>
<mi>C</mi>
</mrow>
</msub>
</mrow>
</mfrac>
</mrow>
<msub>
<mi>&rho;</mi>
<mi>A</mi>
</msub>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>5</mn>
<mo>)</mo>
</mrow>
</mrow>
L is distance of the ground to water level.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196451A (en) * | 2019-06-06 | 2019-09-03 | 自然资源部第一海洋研究所 | A kind of seabed soil liquefaction depth measuring device |
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2017
- 2017-10-16 CN CN201710957093.0A patent/CN107505023A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196451A (en) * | 2019-06-06 | 2019-09-03 | 自然资源部第一海洋研究所 | A kind of seabed soil liquefaction depth measuring device |
| CN110196451B (en) * | 2019-06-06 | 2020-09-29 | 自然资源部第一海洋研究所 | Seabed soil body liquefaction degree of depth measuring device |
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