CN203376139U - Flow field electrical analog comprehensive tester - Google Patents
Flow field electrical analog comprehensive tester Download PDFInfo
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- CN203376139U CN203376139U CN201320324710.0U CN201320324710U CN203376139U CN 203376139 U CN203376139 U CN 203376139U CN 201320324710 U CN201320324710 U CN 201320324710U CN 203376139 U CN203376139 U CN 203376139U
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- flow field
- voltage
- electrical analog
- model
- comprehensive tester
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Abstract
The utility model discloses a flow field electrical analog comprehensive tester comprising a function selection switch, a working mode indication lamp, a winding potentiometer, an AC voltage digital display meter, a measuring voltage output port, a measuring probe and a data acquisition system. Different connecting modes of an electrode are selected via the function selection switch so that an electrical analog test is performed on a water flow field of different types of water project models like dam bodies, sluice gates and the like is realized. The working mode indication lamp indicates a working mode of the tester. During measurement, the probe is inserted into a point to be measured of the model. The AC voltage digital display meter displays voltage difference between the point and a downstream electrode plate. The position and a voltage value of the corresponding measuring point are recorded. After subsequent analysis, distribution state of a seepage flow field or the water flow field of the bottom part of the sluice gate in the internal part of the dam body model can be obtained. Functions of a conventional low field electrical analog tester are expanded by the flow field electrical analog comprehensive tester so that measurement precision is enhanced and a polarization phenomenon of a testing electrode is avoided. Besides, the flow field electrical analog comprehensive tester is simple in structure, and cost is greatly reduced simultaneously.
Description
Technical field
The utility model relates to a kind of comprehensive tester, particularly a kind of flow field electric analogy comprehensive tester.
Background technology
Current flow field electric analogy tester function singleness commonly used, testing source mainly adopts the intermediate frequency oscillator signal, measured signal is mainly that the oscillator signal will recorded obtains after filtering, rectification are amplified, the circuit complexity, poor stability, and the galvanometer of test use is because maloperation is easily burnt, test signal is unfavorable for digitized processing and the also weak point such as relatively loaded down with trivial details of operation.
The utility model content
The purpose of this utility model is to solve existing flow field electric analogy tester function singleness, circuit complexity, poor stability, and the galvanometer of test use is because maloperation is easily burnt, test signal is unfavorable for digitized processing and operate also relatively loaded down with trivial details problem.
Technical scheme: the utility model provides following technical scheme: a kind of flow field electric analogy comprehensive tester, comprise functional select switch, mode indicator light, wound potentiometer, AC voltage digital display meter, measuring voltage delivery outlet, electrode contact, chaining pin, some electrode contacts and data acquisition system (DAS), pass through functional select switch, select the different connections of electrode contact, mode indicator light is indicated different working methods, the measuring point magnitude of voltage is shown by AC voltage digital display meter, supplies the data acquisition system (DAS) collection by measuring voltage output port outputting measurement value simultaneously.
Principle of work: the utility model carrys out the working method of indicating instrument by light emitting diode, changes the intrinsic standoff ratio of wound potentiometer, but the voltage difference of accurate adjustment upstream and downstream pole plate reaches the poor purpose of simulation water levels of upstream and downstream.The utility model both can adopt the mode of finding isopotential point to measure, also can in model, position measurement, the measuring point magnitude of voltage adopts AC voltage digital display meter to show, also can output it to the data acquisition system (DAS) collection simultaneously, in conjunction with position and the magnitude of voltage of measuring point, determine the equipotential line of model.
Beneficial effect: the utility model compared with prior art: carry out the working method of indicating instrument by light emitting diode, realize two kinds of purposes of an instrument.The seeking of isopotential point looked into galvanometer that need not be traditional, thereby can not damage galvanometer because of maloperation.The nonlinear distortion that does not simultaneously also have rectification and filtering circuit to bring, guaranteed the measuring accuracy of instrument.Testing source is directly used after voltage stabilizing the alternating voltage of step-down again, can improve measuring accuracy like this, avoids the test electrode polarization phenomena, simple in structure, also greatly reduces costs simultaneously.By delivery outlet, tested voltage is sent into to data acquisition system (DAS), in conjunction with the planimetric position of measured point, like a cork these parameters are carried out to digitized processing.
The accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is the structural representation of the utility model for gate class model water flow field electric analogy test;
Fig. 3 is the structural representation of the utility model for seepage field electric analogy test in dam body class model body;
The structural representation of the wire resistor battery lead plate that Fig. 4 is the utility model dam body model.
Embodiment
As shown in attached Fig. 1 and 2, a kind of flow field electric analogy comprehensive tester, comprise functional select switch k, mode indicator light LED, wound potentiometer W, AC voltage digital display meter 1, measuring voltage delivery outlet 2, chaining pin 3 and data acquisition system (DAS) (not shown), by functional select switch k, select the different connections of electrode contact, realization is carried out the electric analogy test to the water flow field of dissimilar waterwork object model, mode indicator light LED indicates its working method, the measuring point magnitude of voltage is shown by AC voltage digital display meter 1, by measuring voltage output port 2 outputting measurement values, for data acquisition system (DAS) (not shown), gather simultaneously.The AC power that transformer T is converted to is connected to mode indicator light LED after divider resistance, and mode indicator light LED is connected to functional select switch k, and functional select switch k is connected to wound potentiometer W, and wound potentiometer W is in parallel with AC power.The first electrode contact 5 one ends connect the first sys node of wound potentiometer W and AC power, and it is upper that the second electrode contact 6 one ends are connected to wound potentiometer W, and third electrode joint 7 one ends connect the second sys node of wound potentiometer W and AC power.Exchange digital display meter 1 one ends and be connected to wound potentiometer W, the other end is connected to chaining pin 3.
First electrode contact 5 other ends and second electrode contact 6 other ends are connected in respectively on the upstream electrical pole plate 8 and downstream electrical pole plate 9 of gate model.Functional select switch k is placed in to gate water flow field electric analogy measuring state simultaneously, at this moment k1-1, k2-1, k3-1 connect respectively, the LED1 of mode indicator light LED lights, be designated as gate class model detection mode, regulate as required WW POT W, but the voltage difference of accurate adjustment upstream and downstream, make the voltage difference of upstream and downstream pole plate meet the demands.After the original state adjustment finishes, start test, chaining pin 3 is inserted in model media 10, searching is with respect to the isopotential point of downstream electrical pole plate 9, or each point is with respect to the magnitude of voltage of downstream electrical pole plate 9 in measurement model medium 10 on demand, and the position of recording corresponding measuring point, carry out subsequent analysis.
As shown in Figure 3, for the dam body model, first terminal clamp 5 other ends, second terminal clamp 6 other ends and third electrode chuck 7 other ends are clipped in respectively on the upper end and downstream electrical pole plate 12 of upstream electrical pole plate 11, downstream wire resistor battery lead plate 4 of dam body model, and chaining pin 3 is inserted in gate model or dam body model media 10.Dam body model downstream is provided with a wire resistor battery lead plate 4 with resistance wire 13 coilings.Wire resistor battery lead plate 4 is mainly the top-down progressive formation of simulation dam body downstream face seepage flow, its lower end is connected with battery lead plate, functional select switch k is placed in dam body seepage field electric analogy measuring state, at this moment k1-2, k2-2, k3-2 connect respectively, the LED2 of mode indicator light LED lights, be designated as dam class model seepage field detection mode, regulate as required wound potentiometer W, make the voltage difference on downstream wire resistor battery lead plate 4 meet the demands, after the original state adjustment finishes, its method of testing is identical with the method for testing of gate model.
In Fig. 4, by resistance wire 13 coiling in order on the insulcrete 14 of a sawtooth pattern of 10k Ω left and right, an end of resistance wire 13 is connected with electrode, and the other end is connected with dam body model downstream electrical pole plate 12.
Carry out the working method of indicating instrument by light emitting diode, realize two kinds of purposes of an instrument.The seeking of isopotential point looked into galvanometer that need not be traditional, thereby can not damage galvanometer because of maloperation.The nonlinear distortion that does not simultaneously also have rectification and filtering circuit to bring, guaranteed the measuring accuracy of instrument.Testing source is directly used after voltage stabilizing the alternating voltage of step-down again, can improve measuring accuracy like this, avoids the test electrode polarization phenomena, simple in structure, also greatly reduces costs simultaneously.By delivery outlet, tested voltage is sent into to data acquisition system (DAS), in conjunction with the planimetric position of measured point, like a cork these parameters are carried out to digitized processing.
Claims (2)
1. a flow field electric analogy comprehensive tester, it is characterized in that: comprise functional select switch (k), mode indicator light, wound potentiometer (W), AC voltage digital display meter (1), measuring voltage delivery outlet (2), chaining pin (3), some electrode contacts and data acquisition system (DAS), by functional select switch (k), select the different connections of electrode contact, mode indicator light LED indicates different working methods, the measuring point magnitude of voltage is shown by AC voltage digital display meter (1), supply the data acquisition system (DAS) collection by measuring voltage output port (2) outputting measurement value simultaneously.
2. electric analogy comprehensive tester in flow field according to claim 2, it is characterized in that: dam body model downstream is provided with a battery lead plate of the wire resistor by resistance filament winding system (4), the top-down progressive formation of simulation dam body downstream face seepage flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320324710.0U CN203376139U (en) | 2013-06-06 | 2013-06-06 | Flow field electrical analog comprehensive tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320324710.0U CN203376139U (en) | 2013-06-06 | 2013-06-06 | Flow field electrical analog comprehensive tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203376139U true CN203376139U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320324710.0U Expired - Fee Related CN203376139U (en) | 2013-06-06 | 2013-06-06 | Flow field electrical analog comprehensive tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203376139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044156A (en) * | 2015-07-08 | 2015-11-11 | 武汉大学 | Electric simulation seepage test system and method |
-
2013
- 2013-06-06 CN CN201320324710.0U patent/CN203376139U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044156A (en) * | 2015-07-08 | 2015-11-11 | 武汉大学 | Electric simulation seepage test system and method |
| CN105044156B (en) * | 2015-07-08 | 2018-01-12 | 武汉大学 | A kind of electrical analogue seepage flow test system and method |
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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 |
Granted publication date: 20140101 Termination date: 20160606 |