CN206772883U - A kind of device for measuring underwater different depth water body resistivity - Google Patents

A kind of device for measuring underwater different depth water body resistivity Download PDF

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Publication number
CN206772883U
CN206772883U CN201720690272.8U CN201720690272U CN206772883U CN 206772883 U CN206772883 U CN 206772883U CN 201720690272 U CN201720690272 U CN 201720690272U CN 206772883 U CN206772883 U CN 206772883U
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China
Prior art keywords
electrode
wire
voltmeter
water body
ammeter
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Expired - Fee Related
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CN201720690272.8U
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Chinese (zh)
Inventor
白广明
张守杰
张耘菡
孙光年
卢建旗
杨甫全
刘晓波
孙震
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HEILONGJIANG PROV WATER CONSERVANCY SCIENCE INST
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HEILONGJIANG PROV WATER CONSERVANCY SCIENCE INST
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Abstract

A kind of device for measuring underwater different depth water body resistivity, it is related to a kind of device for measuring water body resistivity, and in particular to a kind of device for measuring underwater different depth water body resistivity.The utility model is relatively low on test achievement degree of accuracy influence and operating efficiency in order to solve the problems, such as existing water body method of measuring resistivity.The utility model includes first electrode, second electrode, 3rd electrode, 4th electrode, insulating bar, power supply, voltmeter and ammeter, first electrode, second electrode, 3rd electrode, 4th electrode is from top to bottom equidistantly sequentially arranged on insulating bar, first electrode is connected by wire with ammeter negative pole, ammeter positive pole is connected by the positive pole of wire and power supply, 4th electrode is connected by the negative pole of wire and power supply, second electrode is connected by the positive pole of wire and voltmeter, 3rd electrode is connected by the negative pole of wire and voltmeter, power supply, voltmeter and ammeter are arranged on mobile hull.The utility model belongs to field of geophysical exploration.

Description

A kind of device for measuring underwater different depth water body resistivity
Technical field
It the utility model is related to a kind of device for measuring water body resistivity, and in particular to one kind measures underwater different depth water The device of body resistivity, belongs to field of geophysical exploration.
Background technology
Drinking water, agricultural water, industrial water etc. can be had by having from the purposes using water, because of the difference of purposes, to water quality Requirement it is also different, water analysis has extremely important effect in national economy.The temperature of large and middle reservoirs, deeper urban river water Degree, turbidity are usually layer distributed, it is necessary to be investigated, studied for the different water levels water of reservoir and river course.Due to water quality Related to the resistivity of water, the resistivity for measuring different water levels is one of indispensable important process in Investigation of water resources field.
The resistivity method of measurement different water levels is the water sample that different water depth is taken using scene at present, then takes water sample Laboratory carries out water sample resistivity test, due to there is the links such as sampling, sample circulation, Sample storage, tests order of accuarcy and effect Rate can all be affected.
The utility model scene can complete different depth water body resistivity measurement, and the test device of utility model is simple, It is easy to operate, eliminate the sampling of different depth water body, to all too many levels such as laboratory sample presentation, laboratory test, avoid sample Variation on influence caused by test data accuracy, may significantly improve the degree of accuracy and the operating efficiency of Measurement results data.
Utility model content
The utility model is the existing water body method of measuring resistivity of solution on test achievement degree of accuracy influence and operating efficiency The problem of relatively low, propose a kind of device for measuring underwater different depth water body resistivity.
The utility model adopts the technical scheme that to solve the above problems:Device described in the utility model includes the first electricity Pole, second electrode, the 3rd electrode, the 4th electrode, insulating bar, power supply, voltmeter and ammeter, first electrode, second electrode, Three electrodes, the 4th electrode are from top to bottom equidistantly sequentially arranged on insulating bar, and first electrode passes through wire and ammeter negative pole Connection, ammeter positive pole are connected by the positive pole of wire and power supply, and the 4th electrode is connected by the negative pole of wire and power supply, and second Electrode is connected by the positive pole of wire and voltmeter, and the 3rd electrode is connected by the negative pole of wire and voltmeter, power supply, voltmeter It is arranged on ammeter on mobile hull.
Method described in the utility model comprises the following steps that:
Step 1: insulating bar to be inserted vertically into the depth to be measured in water, and keep first electrode, second electrode, 3rd electrode, the 4th electrode are all submerged in water, and current test position depth of water numerical value is recorded according to insulating bar high scale;
Step 2: turn on the power, read the electric current meter reading for being connected to power supply output loop and be connected to second electrode, the The reading on voltmeter between three electrodes is simultaneously recorded, and completes a depth of water location site single measurement;Measured for increase The accuracy of data, the data that can repeatedly read in a depth and be shown on recording ammeter, voltmeter;
Step 3: repeating above-mentioned two step, the work on the spot of different depth under water resistivity measurements is completed;
Step 4: the on-the-spot test record data obtained according to above-mentioned steps, calculates each water body resistance for testing the depth of water Rate.
The beneficial effects of the utility model are:
1st, the utility model can complete different depth water body resistivity measurement at the scene, it is no longer necessary to sample water body, To all too many levels such as laboratory sample presentation, laboratory test, issuable temperature, pollution, layer during sample circulation are avoided The influence of the physics and chemistry disturbance factors such as analysis, improve the accuracy and operating efficiency of data.
2nd, the utility model apparatus structure is simple, only used electrode, power supply, voltmeter, ammeter, insulating bar and part Wire, device device is few, conveniently goes to on-the-spot test to carry;
3rd, the utility model is easy to operate, and each device i.e. is completed into test device in-site installation work by wire connection Make;During test, insulating bar is sent into water, reading is goed deep into the depth of water, ammeter, voltmeter data and recorded, and just completes single-point Test site works, it is only necessary to 1-2 people's execute-in-place.
Brief description of the drawings
Fig. 1 is the structural representation of measurement apparatus described in the utility model.
Embodiment
Embodiment one:Illustrate present embodiment with reference to Fig. 1, a kind of underwater difference of measurement described in present embodiment is deeply Spend water body resistivity device include first electrode 1, second electrode 2, the 3rd electrode 3, the 4th electrode 4, insulating bar 5, power supply 6, Ammeter 7 and voltmeter 8, first electrode 1, second electrode 2, the 3rd electrode 3, the 4th electrode 4 are from top to bottom equidistantly pacified successively On insulating bar 5, first electrode 1 is connected by wire with the negative pole of ammeter 7, and the positive pole of ammeter 7 passes through wire and power supply 6 Positive pole connection, the 4th electrode 4 is connected by wire with the negative pole of power supply 6, second electrode 2 by wire with voltmeter 8 just Pole is connected, and the 3rd electrode 3 is connected by wire with the negative pole of voltmeter 8, and power supply 6, voltmeter 8 and ammeter 7 are arranged on movement On hull 10.
Embodiment two:Illustrate present embodiment with reference to Fig. 1, a kind of underwater difference of measurement described in present embodiment is deeply Spend on the insulating bar 5 of the device of water body resistivity and indicate scale along its length.Other compositions and annexation and specific reality It is identical to apply mode one.
Embodiment three:Illustrate present embodiment with reference to Fig. 1, a kind of underwater difference of measurement described in present embodiment is deeply The method of degree water body resistivity is achieved by the steps of:
Step 1: insulating bar to be inserted vertically into the depth to be measured in water, and keep first electrode, second electrode, 3rd electrode, the 4th electrode are all submerged in water, and current test position depth of water numerical value is recorded according to insulating bar high scale;
Step 2: turning on the power, output current meter reading and the voltage being connected between second electrode, the 3rd electrode are read Reading on table is simultaneously recorded, and completes a depth of water location site single measurement;, can be with to increase the accuracy of measurement data The data for repeatedly reading in a depth and being shown on recording ammeter, voltmeter;
Step 3: repeating above-mentioned two step, the work on the spot of different depth under water resistivity measurements is completed;
Step 4: the on-the-spot test record data obtained according to above-mentioned steps, calculates each water body resistance for testing the depth of water Rate.
Operation principle
Assuming that the resistivity of 4 interelectrode water bodys is identical in device, asks and export electricity in the electrode 4 of first electrode 1 and the 4th Flow in the case of being Δ U for I, second electrode 2 and the potential difference of the 3rd electrode 3, water body between the electrode 4 of first electrode 1 and the 4th Electricalresistivityρ;
Because in water environment as, electric field can regard to the total space electric field of homogeneous isotropism, at the electric field R of Gu Shui midpoints Current potential expression formula be:
U in formula (1)RThe current potential of R points is represented, I represents electric power outputting current value, and ρ represents the resistivity in electric field, R tables Show distance of certain point in electric field apart from point source;
Certain point current potential expression formula in the water of two different in nature point electric current source electric fields is can obtain according to formula (1):
R in formula (2)1Represent that certain point is apart from the distance of positive electrode, R in field2Represent distance of the shop apart from negative electrode;
In the utility model, because four electrode distances are identical, i.e. first electrode, second electrode, second electrode, the 3rd electricity Pole, the 3rd electrode, the 4th electrode distance are L, can obtain current potential U at second electrode 2 by formula (2)aExpression formula is:
Similarly, current potential U at the 3rd electrode 3bExpression formula is:
It can show that the potential difference Δ U between the electrode 3 of second electrode 2 and the 3rd is by formula (3) and formula (4):
Water-outlet body electricalresistivityρ's calculation formula can be obtained by formula (5):
Above formula shows, as long as scene is measured by the electric current I and second electrode 2 between the electrode 4 of first electrode 1 and the 4th Potential difference Δ U between the 3rd electrode 3, it is possible to calculate water body electricalresistivityρ between the electrode 4 of first electrode 1 and the 4th.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model Hold, according to the technical essence of the utility model, within the spirit and principles of the utility model, what above example was made appoints What simple modification, equivalent substitution and improvement etc., still falls within the protection domain of technical solutions of the utility model.

Claims (2)

  1. A kind of 1. device for measuring underwater different depth water body resistivity, it is characterised in that:A kind of measurement is underwater different deep Spending the device of water body resistivity includes first electrode (1), second electrode (2), the 3rd electrode (3), the 4th electrode (4), insulating bar (5), power supply (6), ammeter (7) and voltmeter (8) wire, first electrode (1), second electrode (2), the 3rd electrode (3), the 4th Electrode (4) is from top to bottom equidistantly sequentially arranged on insulating bar (5), and first electrode (1) passes through wire and ammeter (7) negative pole It is connected, voltmeter (8) positive pole is connected by wire with the positive pole of power supply (6), and the 4th electrode (4) passes through wire and power supply (6) Negative pole is connected, and second electrode (2) is connected by wire with the positive pole of voltmeter (8), and the 3rd electrode (3) passes through wire and voltmeter (8) negative pole connection, power supply (6), voltmeter (8) and ammeter (7) are arranged on mobile hull (9).
  2. A kind of 2. device for measuring underwater different depth water body resistivity according to claim 1, it is characterised in that:Insulating bar (5) scale is indicated on along its length.
CN201720690272.8U 2017-06-14 2017-06-14 A kind of device for measuring underwater different depth water body resistivity Expired - Fee Related CN206772883U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107091861A (en) * 2017-06-14 2017-08-25 黑龙江省水利科学研究院 A kind of device and method for measuring different depth water body resistivity under water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107091861A (en) * 2017-06-14 2017-08-25 黑龙江省水利科学研究院 A kind of device and method for measuring different depth water body resistivity under water

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