CN205373999U - Laboratory non -contact wave measuring device - Google Patents
Laboratory non -contact wave measuring device Download PDFInfo
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- CN205373999U CN205373999U CN201521144438.3U CN201521144438U CN205373999U CN 205373999 U CN205373999 U CN 205373999U CN 201521144438 U CN201521144438 U CN 201521144438U CN 205373999 U CN205373999 U CN 205373999U
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Abstract
The utility model provides a laboratory non -contact wave measuring device, including data processor, image collector, scale and camera, the scale sets up perpendicularly in near measuring object, the scope of making a video recording of camera covers whole scales region, image collector will the data transfer of camera feedback gives data processor. The beneficial effects of the utility model are that: this device adopts image recognition method non -contact measurement, and measurement accuracy is high, receive the environmental impact little, has avoided original wave height sensor to experimental influence to having overcome the shortcoming of the easy loss of testing instrument, having had higher assurance rate, test device easily installs, with low costs, and measuring range is wide, and same device can note the wave information of a plurality of different positions simultaneously.
Description
Technical field
This utility model belongs to ocean engineering experiment field, especially relates to a kind of contactless wave measurement device of laboratory.
Background technology
Wave measurement device is assay device necessary in boats and ships and ocean engineering laboratory, and conventional wave measurement device is contact, specifically includes that resistance-type wave-height sensing device and condenser type wave-height sensing device etc..The ultimate principle of this type of wave-height sensing device is: be placed perpendicularly in water by two resistance or electric capacity filament, the bottom UNICOM of filament, top is connected formation loop respectively with power positive cathode, the change of water level can cause the change of resistance or electric capacity in circuit, by setting up the relation of water level and resistance or electric capacity, obtain measuring water level value.Contact type measurement major downside is that resistance or electric capacity are affected by environment greatly, certainty of measurement is not high, and additionally test can be produced impact by the measurement of contact, and fragile when wave height is bigger.And currently used non-contact measurement device for measuring is mainly ultrasonic type or electromagnetic wave type, the cardinal principle of this non-cpntact measurement is based on the reflection at the water surface of ultrasound wave and electromagnetic wave, obtains water level information by analyzing the characteristic of echo.The method major downside is that certainty of measurement depends on transmitter power, and device is complex, and price is high.For improving the deficiency of above-mentioned wave measurement device, it is necessary to develop a kind of certainty of measurement little contactless wave measurement device high, affected by environment.
Summary of the invention
In view of this, this utility model is directed to a kind of contactless wave measurement device of laboratory.
The technical solution of the utility model is achieved in that
A kind of contactless wave measurement device of laboratory, including data processor, image acquisition device, scale and video camera, described scale is vertically installed near measurement object, the image pickup scope of described video camera contains whole scale region, and the data that described video camera feeds back are passed to described data processor by described image acquisition device.
Further, the quantity of described scale is at least one.
Further, described data processor is computer.
Further, described video camera is high-definition camera.
This utility model has the advantage that and has the benefit effect that this device adopts image-recognizing method non-cpntact measurement, certainty of measurement is high, affected by environment little, avoid the impact on test of original wave-height sensing device, and the shortcoming overcoming the easy loss of test apparatus, there is higher fraction, assay device is easily installed, cost is low, measures scope wide, and same device can record the wave information of some diverse locations simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure:
1, data processor 2, image acquisition device 3, scale 4, tank
5, video camera
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model; the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise; broadly fall into the scope of this utility model protection; when not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding this utility model, but this utility model can also adopt other to be different from alternate manner described here to be implemented, those skilled in the art can do similar popularization when without prejudice to this utility model intension, and therefore this utility model is not by the restriction of following public specific embodiment.
Secondly, this utility model is described in detail in conjunction with schematic diagram, when describing this utility model embodiment in detail; for ease of explanation; representing that the profile of device structure can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of this utility model protection at this.Additionally, the three-dimensional space of length, width and height should be comprised in actual fabrication.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " etc. are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more these features.In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model by concrete condition.
Operation principle of the present utility model:
In the picture, the vertical height of the position coordinates of pixel and this point also exists relation one to one, is analyzed the relative position of the water surface and scale by image recognition program, it is possible to be readily available the elevation information of the water surface, the i.e. water level value of this position, and then obtain the information such as wave height, cycle.
As shown in Figure 1, this utility model includes data processor (computer) 1, image acquisition device 2, scale 3, tank 4 and high-definition camera 5, three described scales 3 are vertically installed in the antetheca of tank 4 and interval is equal, the image pickup scope of described high-definition camera 5 contains whole scale region, and the data that described high-definition camera 5 feeds back are passed to described data processor 1 by described image acquisition device 2.
This device gathers the main program of wave height and includes: instrument installation, highly demarcation, image acquisition, data process and result output.
First, in anhydrous conditions, three scales 3 are vertically installed in the position that the antetheca measuring object (tank 4) needs to measure, and high-definition camera 5 is fixed on scale 3 opposite, and the height of scale 3 is demarcated；In tank 4, add water to 2/3rds height, in tank, be provided with wave simulator；During test, by image acquisition device 2 in real time by the image transmitting with scale 3 in computer, the method utilizing image recognition identifies wave height automatically, utilize image recognition software, analyze record equivalent water level information, get final product the wave height of the various waves such as measurement rules ripple, irregular wave and solitary wave, enable in particular to the wave height measured after obtaining wave breaking.
Test shows, measuring the wave height error obtained is 2mm, has good precision.
The invention have the advantage that certainty of measurement is high, affected by environment little, non-cpntact measurement avoids the impact on test of original wave-height sensing device, and overcomes the shortcoming of the easy loss of test apparatus, has higher fraction；Assay device is easily installed, cost is low, measurement scope wide, and same device can record the wave information of some diverse locations simultaneously.
Above embodiment of the present utility model is described in detail, but described content has been only preferred embodiment of the present utility model, it is impossible to be considered for limiting practical range of the present utility model.All equalizations made according to this utility model application range change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (4)
1. the contactless wave measurement device of laboratory, it is characterized in that: include data processor (1), image acquisition device (2), scale (3) and video camera (5), described scale (3) is vertically installed near measurement object, the image pickup scope of described video camera (5) contains whole scale region, and the data that described video camera (5) feeds back are passed to described data processor (1) by described image acquisition device (2).
2. the contactless wave measurement device of laboratory according to claim 1, it is characterised in that: the quantity of described scale (3) is at least one.
3. the contactless wave measurement device of laboratory according to claim 1 and 2, it is characterised in that: described data processor (1) is computer.
4. the contactless wave measurement device of laboratory according to claim 1 and 2, it is characterised in that: described video camera (5) is high-definition camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521144438.3U CN205373999U (en) | 2015-12-31 | 2015-12-31 | Laboratory non -contact wave measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521144438.3U CN205373999U (en) | 2015-12-31 | 2015-12-31 | Laboratory non -contact wave measuring device |
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| CN205373999U true CN205373999U (en) | 2016-07-06 |
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| CN201521144438.3U Active CN205373999U (en) | 2015-12-31 | 2015-12-31 | Laboratory non -contact wave measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840602A (en) * | 2017-04-20 | 2017-06-13 | 山东大学 | A kind of system for following the trail of wave feature, method and application |
| CN107505655A (en) * | 2017-09-20 | 2017-12-22 | 哈尔滨工程大学 | The experimental observation device that a kind of simulated explosion opens ice |
| CN113834544A (en) * | 2021-08-29 | 2021-12-24 | 哈尔滨工程大学 | Visual experimental device for researching liquid level sloshing characteristic of built-in voltage stabilizer |
-
2015
- 2015-12-31 CN CN201521144438.3U patent/CN205373999U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840602A (en) * | 2017-04-20 | 2017-06-13 | 山东大学 | A kind of system for following the trail of wave feature, method and application |
| CN107505655A (en) * | 2017-09-20 | 2017-12-22 | 哈尔滨工程大学 | The experimental observation device that a kind of simulated explosion opens ice |
| CN113834544A (en) * | 2021-08-29 | 2021-12-24 | 哈尔滨工程大学 | Visual experimental device for researching liquid level sloshing characteristic of built-in voltage stabilizer |
| CN113834544B (en) * | 2021-08-29 | 2023-08-04 | 哈尔滨工程大学 | Visual experimental device for researching liquid level sloshing characteristics of built-in voltage stabilizer |
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