CN205786441U - Seawater resistivity on-line measurement device - Google Patents
Seawater resistivity on-line measurement device Download PDFInfo
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- CN205786441U CN205786441U CN201620662514.8U CN201620662514U CN205786441U CN 205786441 U CN205786441 U CN 205786441U CN 201620662514 U CN201620662514 U CN 201620662514U CN 205786441 U CN205786441 U CN 205786441U
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- electrode
- ammeter
- wire
- power supply
- measuring probe
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Abstract
The utility model discloses a kind of seawater resistivity on-line measurement device, including measuring probe, A electrode, B electrode, C electrode, D electrode, voltmeter, ammeter, power supply, floating platform, wire, wherein, A electrode, B electrode, C electrode, D electrode are uniformly fixed on the measurement probe, voltmeter, ammeter, power supply are fixed on floating platform upper surface, and A electrode, D electrode are contacted with ammeter and power supply mutually by wire, and B electrode, C electrode are respectively connected with voltmeter both positive and negative polarity by wire.By the four-point method on-line measurement sea resistivity of water of immersed in liquid level, improve certainty of measurement；Circular ring metal electrode not only ensure that and being fully contacted of sea water, and is fixed on measuring probe the comprehensive erosion that can also avoid sea water to electrode, extends the service life of device.
Description
Technical field
This utility model relates to a kind of seawater resistivity on-line measurement device.
Background technology
Need to measure sea resistivity of water at this when calculating somewhere marine electromagnetic field distribution, measure solution resistance rate general
It is that two electrodes are placed in solution, is electrified pressure to electrode, then measure the electric current between electrode.Measuring seawater resistivity
Time, owing to the salinity of sea water is high, the short then electric current of distance between electrode is big, and error is big, affects the accuracy of measurement result, this
Outward, big due to seawater levels wave during on-line measurement, electrode points spacing is difficult to measure, and causes being difficult to accurate measurements.
Utility model content
For overcoming the deficiencies in the prior art, this utility model provides the seawater resistivity on-line measurement that accuracy of measurement is high
Device.
The technical scheme taked for this this utility model is: a kind of seawater resistivity on-line measurement device, visits including measuring
Head, A electrode, B electrode, C electrode, D electrode, voltmeter, ammeter, power supply, floating platform, wire, wherein, A electrode, B electrode, C electricity
Pole, D electrode are uniformly fixing, and voltmeter, ammeter, power supply are fixed on floating platform upper surface on the measurement probe, and A electrode, D electrode are logical
Crossing wire to contact mutually with ammeter and power supply, B electrode, C electrode are respectively connected with voltmeter both positive and negative polarity by wire.
Further, described measuring probe is in-line length thin cylinder insulating bar, and density is more than sea water to ensure to survey
During amount, whole measuring probe is completely immersed in sea water.
Further, described A electrode, B electrode, C electrode, D electrode are circular ring metal electrode, and spacing L is the most uniformly overlapped
Gu on the measurement probe.
This utility model four-point method on-line measurement sea resistivity of water by immersed in liquid level, improves certainty of measurement；Circle
Circular metal electrode not only ensure that and being fully contacted of sea water, and is fixed on measuring probe and sea water can also be avoided electrode
Corroding, the only outer surface with contact with sea water has corrosion, and the inner surface tightened together with measuring probe does not reaches sea comprehensively
Water, extends the service life of device.The wire being connected with A electrode, B electrode, C electrode, D electrode, not only acts as electric action,
Also act as and pull the effect connecting measuring probe.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model seawater resistivity on-line measurement device.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is further elucidated with.
Detailed description of the invention
Embodiment 1
This seawater resistivity on-line measurement device, including measuring probe 1, A electrode 2, B electrode 3, C electrode 4, D electrode 5, electricity
Pressure table 6, ammeter 7, power supply 8, floating platform 9, wire 10, wherein, measuring probe 1 is in-line length thin cylinder insulating bar, and close
When degree is measured with guarantee more than sea water, whole measuring probe is completely immersed in sea water, A electrode 2, B electrode 3, C electrode 4, D electrode 5
For circular ring metal electrode, being the most uniformly fixed on measuring probe, voltmeter 6, ammeter 7, power supply 8 are fixed on floating
Platform 9 upper surface, A electrode, D electrode be connected with power supply 8 by wire 10 series current table 7, and B electrode 3, C electrode 4 pass through wire 10
It is respectively connected with voltmeter 6 both positive and negative polarity.
During measurement, power supply output constant current, its value I size is read, between B electrode 3 and C electrode 4 by ammeter 7
Magnitude of voltage V size is read by voltmeter 6, can obtain surface resistivity according to expression formula σ=π V/ln2/I.
Claims (3)
1. a seawater resistivity on-line measurement device, including measuring probe, A electrode, B electrode, C electrode, D electrode, voltmeter,
Ammeter, power supply, floating platform, wire, wherein, A electrode, B electrode, C electrode, D electrode are uniformly fixed on the measurement probe, voltage
Table, ammeter, power supply are fixed on floating platform upper surface, and A electrode, D electrode are contacted with ammeter and power supply mutually by wire, B electrode,
C electrode is respectively connected with voltmeter both positive and negative polarity by wire.
Seawater resistivity on-line measurement device the most according to claim 1, it is characterised in that: described measuring probe is a word
Shape length thin cylinder insulating bar, and when density is measured with guarantee more than sea water, whole measuring probe is completely immersed in sea water.
Seawater resistivity on-line measurement device the most according to claim 2, it is characterised in that: described A electrode, B electrode, C
Electrode, D electrode are circular ring metal electrode, are the most uniformly fixed on measuring probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620662514.8U CN205786441U (en) | 2016-06-28 | 2016-06-28 | Seawater resistivity on-line measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620662514.8U CN205786441U (en) | 2016-06-28 | 2016-06-28 | Seawater resistivity on-line measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786441U true CN205786441U (en) | 2016-12-07 |
Family
ID=58129277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620662514.8U Expired - Fee Related CN205786441U (en) | 2016-06-28 | 2016-06-28 | Seawater resistivity on-line measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205786441U (en) |
Cited By (1)
| 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 |
-
2016
- 2016-06-28 CN CN201620662514.8U patent/CN205786441U/en not_active Expired - Fee Related
Cited By (1)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170628 |