CN204982982U - Signal acquisition device - Google Patents
Signal acquisition device Download PDFInfo
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- CN204982982U CN204982982U CN201520670628.2U CN201520670628U CN204982982U CN 204982982 U CN204982982 U CN 204982982U CN 201520670628 U CN201520670628 U CN 201520670628U CN 204982982 U CN204982982 U CN 204982982U
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Abstract
The utility model provides a signal acquisition device, include: signal source, current electrode, detection electrode and signal acquisition module, power supply electrode package draws together first current electrode and second current electrode, and the two horizontal direction coparallel is placed to be connected with two signal output part of signal source respectively through the supply cable, the signal source provides the alternating signal for the current electrode, detection electrode is parallel with first current electrode and second current electrode respectively, and is connected with signal acquisition module passing signal cable. The utility model discloses the in -process of preventing osmosis membrane perpendicularly can laid, through applying the current potential collection of alternating signal to preventing osmosis membrane surface perpendicularly preventing the osmosis membrane both sides perpendicularly to prevent the detection of osmosis membrane seepage nature perpendicularly in follow -up current potential according to gathering, adopt the utility model discloses a signal acquisition device can accurately gather the current potential of preventing osmosis membrane unilateral surface sampling point perpendicularly to can guarantee the accurately leakage detection that goes on to preventing osmosis membrane perpendicularly effectively.
Description
Technical field
The utility model relates to environment-friendly engineering technical field, particularly relates to a kind of signal pickup assembly.
Background technology
Water resource is seriously deficient now, and drinking water sources mostly is underground water.Therefore, the cleaning of groundwater resources how is protected to seem particularly important.At present; city life garbage landfill is arranged on the top of water table more; the ground water protection in heavy metal pollution place is also increasingly serious, how to ensure that pollutant is non-leakage in underground water, prevents that underground water is contaminated becomes sixty-four dollar question in construction process.
Vertical seepage control film lays the measure of the protection underground water having become more and more important, and its effect is by isolated inside and outside Polluted area, controls polluted underground water and spreads to periphery, strengthen pollution range further, cause more serious contamination accident.The antiseepage film of vertical seepage control layer adopts synthetic material to make usually, and such as modal synthetic material is high density polyethylene (HDPE) (HighDensityPolyethylene; HDPE).In order to preventing pollution thing permeates the ground in water, pollute the living water use of people, great damaging influence is brought to the life of people, under current state of the art, usual employing HVDC electrical method detects the leakage of vertical seepage control film, utilizes the high resistant characteristic of HDPE film, judges whether electric leakage by detecting magnitude of voltage in place, to determine that whether vertical seepage control film is damaged, determine that when leaking electricity seepage occurs the breakage of vertical seepage control film.
But, existing HVDC electrical method detects the damaged method of vertical seepage control film, the landfill yard that can only be used for not runing carries out the leakage detection that level lays vertical seepage control film, the vertical seepage control film that can not be used for vertical seepage control layer detects, in order to be applicable to the detection to vertical seepage control layer vertical seepage control film, by the electromotive force detecting vertical seepage control film, initial theory analysis in the process of deployment of vertical seepage control film, can judge whether vertical seepage control film exists seepage.But, the electric potential signal acquisition scheme of antiseepage film is not provided again in prior art.
Utility model content
The utility model provides a kind of signal pickup assembly, lacks vertical problem of laying the signals collecting scheme of vertical seepage control film to overcome in prior art, so that the follow-up signal according to gathering realizes detecting the leakage of vertical seepage control film.
The utility model provides a kind of signal pickup assembly, comprising: signal source, current electrode, detecting electrode and signal acquisition module;
Described current electrode comprises the first current electrode and the second current electrode, and described first current electrode and described second current electrode be arranged in parallel in the horizontal direction, and is connected with two signal output parts of described signal source respectively by electricity cable; Described signal source provides alternating signal for described current electrode;
Described detecting electrode is positioned at the centre of described first current electrode and described second current electrode, and parallel with described second current electrode with described first current electrode respectively; Described detecting electrode is connected by signal cable with described signal acquisition module; Described detecting electrode, for detecting the electromotive force on the described vertical seepage control film surface of placing perpendicular to described detecting electrode; And the described electromotive force detected is transferred to described signal acquisition module.
Further, in above-mentioned signal pickup assembly, the shape of described first current electrode and described second current electrode is strip.
Further, in above-mentioned signal pickup assembly, described first current electrode and described second current electrode are made up of corrosion resistant conducting metal respectively.
Further, in above-mentioned signal pickup assembly, described detecting electrode comprises support bar and the one group of point-like be arranged on described support bar detects pole, each described point-like detects pole and is embedded in described support bar, and described support bar is parallel with described second current electrode with described first current electrode respectively; Each described point-like is detected pole and is connected with described signal acquisition module by described signal cable, is transferred to described signal acquisition module so that each described point-like is detected the electromotive force detected pole.
Further, in above-mentioned signal pickup assembly, it is equally distributed that each described point-like detects pole on described support bar.
Further, in above-mentioned signal pickup assembly, the distance that adjacent described point-like detects between pole is 10 ~ 20 centimetres.
Further, in above-mentioned signal pickup assembly, the sample frequency of described detecting electrode is 40KHz ~ 60KHz.
Further, in above-mentioned signal pickup assembly, described detection pole is made up of corrosion resistant conducting metal.
Further, in above-mentioned signal pickup assembly, described signal source exports ac signal, and frequency is variable.
Further, in above-mentioned signal pickup assembly, the frequency range of described signal source is 1Hz ~ 30Hz;
The voltage range of described signal source is 10Vpp ~ 60Vpp;
The current range of described signal source is 100mA ~ 1mA.
Signal pickup assembly of the present utility model, by adopting signal source, current electrode, detecting electrode and signal acquisition module, the electromotive force on the vertical seepage control film surface of placing perpendicular to detecting electrode is detected, can gather the electromotive force of vertical seepage control film in the process of laying vertical seepage control film, be convenient to the follow-up electromotive force according to gathering and carry out leakage detection, adopt signal pickup assembly of the present utility model can accurate acquisition to the electromotive force of vertical seepage control film sampled point on the surface, be convenient to follow-uply accurately to detect the leakage of vertical seepage control film, thus effectively can ensure the leak detection efficiency of vertical seepage control film.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model signal pickup assembly embodiment;
Fig. 2 is the structural representation of detecting electrode in the signal pickup assembly shown in Fig. 1.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the utility model signal pickup assembly embodiment, and as shown in Figure 1, the signal pickup assembly of the present embodiment can comprise: signal source 11, current electrode 12, detecting electrode 13 and signal acquisition module 14.
Wherein, signal source 11 is connected with current electrode 12, and this signal source 11 provides alternating signal for current electrode 12; This current electrode 12 comprises the first current electrode 121 and the second current electrode 122, and the first current electrode 121 and the second current electrode 122 be arranged in parallel in the horizontal direction, and is connected with two signal output parts of signal source 11 respectively by electricity cable; Signal source 11 provides alternating signal for current electrode 12.Detecting electrode 13 is electrically connected with signal acquisition module 14, and this detecting electrode 13 is positioned at the centre of the first current electrode 121 and the second current electrode 122, and parallel with the second current electrode 122 with the first current electrode 121, presses close to vertical seepage control film in testing process; And this detecting electrode 13 is for detecting the electromotive force on the vertical seepage control film surface of placing perpendicular to detecting electrode 13; Detecting electrode 13 is connected by signal cable with signal acquisition module 14, and the electromotive force detected is transferred to signal acquisition module 14.
The vertical seepage control film described in the present embodiment is build requisite facility in prior art household refuse landfill sites, and such as modal be synthetic material is high density polyethylene (HDPE) (HighDensityPolyethylene; HDPE).
The signal pickup assembly of the present embodiment, by adopting signal source 11, current electrode 12, detecting electrode 13 and signal acquisition module 14, the electromotive force on the vertical seepage control film surface of placing perpendicular to detecting electrode is detected, can gather the electromotive force of vertical seepage control film in the process of laying vertical seepage control film, be convenient to the follow-up electromotive force according to gathering and carry out leakage detection, adopt the present embodiment signal pickup assembly can accurate acquisition to the electromotive force of vertical seepage control film each sampled point on the surface, be convenient to follow-uply accurately to detect the leakage of vertical seepage control film, thus effectively can ensure the leakage detection efficiency of vertical seepage control film.
Further, the signal pickup assembly in the present embodiment, as shown in fig. 1, the shape of the first current electrode 121 and the second current electrode 122 is strip.The object being set to strip is can more press close to vertical seepage control film, makes the scope of detection more accurate, is not easy to occur leak source.
Further, the signal pickup assembly in the present embodiment, as shown in fig. 1, the first current electrode 121 and the second current electrode 122 are made up of corrosion resistant conducting metal respectively.Use corrosion resistant metal object to be to extend the application life of current electrode, strengthen safety.
Further, the signal pickup assembly in the present embodiment, as shown in fig. 1, signal source 11 exports ac signal, and frequency is variable.
Further, the signal pickup assembly in the present embodiment, signal source 11 frequency range is 1Hz--30Hz; The voltage range of signal source 11 is 10Vpp ~ 60Vpp; The current range of signal source 11 is 100mA ~ 1mA.
Fig. 2 is the structural representation of detecting electrode in the signal pickup assembly shown in Fig. 1, and as shown in Figure 2, the detecting electrode 13 in the present embodiment signal pickup assembly comprises: support bar 131 and one group of point-like detect pole 132.Wherein, support bar 131 is parallel with the second current electrode 122 with the first current electrode 121 respectively, one group of point-like detects pole 132 and is arranged on support bar 131, and each point-like detects pole 132 perpendicular to support bar 131, each point-like is detected pole 132 and is connected with signal acquisition module 14 by cable, is transferred to signal acquisition module 14 so that each point-like is detected the electromotive force detected pole 132.
The signal pickup assembly of the present embodiment, by the detecting portion detecting pole is arranged to point format, and each point-like in a group detects pole 132 to be connected with signal acquisition module 14 respectively, the electromotive force detected each point-like to be detected pole 132 is transferred to signal acquisition module 14, significantly improve the precision of detection, the leakage detection that the follow-up electromotive force according to gathering carries out vertical seepage control film can be convenient to simultaneously, thus effectively improve the leakage detection efficiency of vertical seepage control film.
Further, the signal pickup assembly in the present embodiment, as shown in Figure 2, it is equally distributed that one group of each point-like examined in shape survey pole 132 detects pole 132 on support bar 131.Adopt equally distributed object to be the uniformity ensureing to detect for vertical seepage control film surface potential, ensure being uniformly distributed of test point to the full extent, avoid because the uneven of test point distribution causes detection to occur deviation.
Further, the signal pickup assembly in the present embodiment, as shown in Figure 2, the distance that in one group of point-like detection pole 132, adjacent point-like detects between pole 132 is 10 ~ 20 centimetres.
Further, the signal pickup assembly in the present embodiment, the sample frequency of detecting electrode 13 is 40KHz ~ 60KHz.
Further, signal pickup assembly in the present embodiment, as shown in Figure 1 or 2, point-like detects pole 132 and is made up of corrosion resistant conducting metal, corrosion resistant metal object is used to be to ensure that detecting electrode long period of soaking electrochemical reaction does not occur under acid or alkali environment, extend the application life of current electrode, strengthen safety.
Device embodiment described above is only schematic, the unit wherein illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed at least two network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying performing creative labour, are namely appreciated that and implement.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a signal pickup assembly, is characterized in that, comprising: signal source, current electrode, detecting electrode and signal acquisition module;
Described current electrode comprises the first current electrode and the second current electrode, and described first current electrode and described second current electrode be arranged in parallel in the horizontal direction, and is connected with two signal output parts of described signal source respectively by electricity cable; Described signal source provides alternating signal for described current electrode;
Described detecting electrode is positioned at the centre of described first current electrode and described second current electrode, and parallel with described second current electrode with described first current electrode respectively; Described detecting electrode is connected by signal cable with described signal acquisition module; Described detecting electrode, for detecting the electromotive force on the described vertical seepage control film surface of placing perpendicular to described detecting electrode; And the described electromotive force detected is transferred to described signal acquisition module.
2. signal pickup assembly according to claim 1, is characterized in that, the shape of described first current electrode and described second current electrode is strip.
3. signal pickup assembly according to claim 2, is characterized in that, described first current electrode and described second current electrode are made up of corrosion resistant conducting metal respectively.
4. signal pickup assembly according to claim 1, it is characterized in that, described detecting electrode comprises support bar and the one group of point-like be arranged on described support bar detects pole, each described point-like detects pole and is embedded in described support bar, and described support bar is parallel with described second current electrode with described first current electrode respectively; Each described point-like is detected pole and is connected with described signal acquisition module by described signal cable, is transferred to described signal acquisition module so that each described point-like is detected the electromotive force detected pole.
5. signal pickup assembly according to claim 4, is characterized in that, it is equally distributed that each described point-like detects pole on described support bar.
6. signal pickup assembly according to claim 5, is characterized in that, the distance that adjacent described point-like detects between pole is 10 ~ 20 centimetres.
7. the signal pickup assembly according to claim 5 or 6, is characterized in that, the sample frequency of described detecting electrode is 40KHz ~ 60KHz.
8. the signal pickup assembly according to claim 5 or 6, is characterized in that, described detection pole is made up of corrosion resistant conducting metal.
9., according to the arbitrary described signal pickup assembly of claim 1-6, it is characterized in that, described signal source exports ac signal, and frequency is variable.
10. signal pickup assembly according to claim 9, is characterized in that, the frequency range of described signal source is 1Hz ~ 30Hz;
The voltage range of described signal source is 10Vpp ~ 60Vpp;
The current range of described signal source is 100mA ~ 1mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670628.2U CN204982982U (en) | 2015-08-31 | 2015-08-31 | Signal acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670628.2U CN204982982U (en) | 2015-08-31 | 2015-08-31 | Signal acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204982982U true CN204982982U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520670628.2U Expired - Fee Related CN204982982U (en) | 2015-08-31 | 2015-08-31 | Signal acquisition device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064425A (en) * | 2015-08-31 | 2015-11-18 | 中国环境科学研究院 | Signal acquisition device |
| CN110286294A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing device and method for monitoring of leaking electricity |
| CN110286293A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing electric leakage monitoring method and system based on leakage current |
-
2015
- 2015-08-31 CN CN201520670628.2U patent/CN204982982U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064425A (en) * | 2015-08-31 | 2015-11-18 | 中国环境科学研究院 | Signal acquisition device |
| CN110286294A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing device and method for monitoring of leaking electricity |
| CN110286293A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing electric leakage monitoring method and system based on leakage current |
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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: 20160120 Termination date: 20180831 |