CN105628336A - Water depth automatic tracking device and method in non-steady flow simulation test - Google Patents
Water depth automatic tracking device and method in non-steady flow simulation test Download PDFInfo
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- CN105628336A CN105628336A CN201610066184.0A CN201610066184A CN105628336A CN 105628336 A CN105628336 A CN 105628336A CN 201610066184 A CN201610066184 A CN 201610066184A CN 105628336 A CN105628336 A CN 105628336A
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- photodiode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Optical Radar Systems And Details Thereof (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a water depth automatic tracking device in a non-steady flow simulation test, and the device comprises a sleeve, a water surface tracker, and a controller. The water surface tracker is located in the sleeve, and the interior of the sleeve is provided with a first LED, a second LED, a first photodiode, and a second photodiode. The first LED is arranged to be exactly opposite to the first photodiode, and the second LED is arranged to be exactly opposite to the second photodiode. The first and second photodiodes are respectively in signal connection with the controller, and the controller is connected with a first tracking motor and a second tracking motor. According to the invention, the water surface tracker depends on a floating force to move up and down along with a water surface, and then achieves the tracking of a corresponding water depth through the first and second tracking motors. The device control the starting of the tracking motors through the high sensitivity of the photodiodes and LEDs, and improves the tracking precision.
Description
Technical field
The present invention relates to a kind of depth of water autotracker and method in unsteady flow simulation test, belong to hydraulic engineering field.
Background technology
The current parameters such as the flow velocity at certain depth of water place, elevation have specific physical significance, and the flow velocity such as 0.6 times of depth of water place represents mean velocity in vertical, and table flow velocity is mean velocity in vertical 1.18 times; It addition, the water surface is water level relative to the depth displacement of datum level, thus, in water flow simulation is tested, also often need to follow the trail of the current parameter of certain depth of water. Natural current are non-constant, and the water surface is continually changing, and the depth of water also changes therewith, for this reason, it may be necessary to automatically adjust pertinent instruments to arrange the measurement to realize specific depth of water place current parameter according to water depth ratio, such tracking device is called depth of water autotracker. Existing autotracker there is problems in that 1) water detection method mainly adopts water resistance or water conduction mode, and affected probe by water quality etc. and easily polarize and cause that tracking accuracy is low; 2) limited by goal in research, the single depth of water can only be followed the tracks of, such as table (the full depth of water), and different water depth cannot be met and follow the tracks of needs; 3) in unsteady flow simulation test there is certain surface ripple in the water surface, and it is easily caused tracking device and moves back and forth always, affects apparatus measures result.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of depth of water autotracker and method in unsteady flow simulation test, it is achieved the various depth of waters are followed the tracks of to be needed, and reduces water surface wave interference by hardware threshold adjustment.
Technical scheme: for achieving the above object, depth of water autotracker in the unsteady flow simulation test of the present invention, including sleeve, Surface Tracker and controller, described Surface Tracker is positioned at sleeve, it is provided with first emitting led in described sleeve, second is emitting led, first photodiode and the second photodiode, it is described that first is emitting led and the first photodiode is just to layout, it is described that second is emitting led and the second photodiode is just to layout, first photodiode and the second photodiode are connected with controller signals respectively, controller is connected with the first tracking motor and the second tracking motor respectively, first tracking motor passes through the first actuating device and sleeve connection, second tracking motor is connected with monitoring device by the second actuating device, follow the water surface by Surface Tracker to move up and down, control the signal break-make of the first photodiode and the second photodiode, controller controls the first tracking motor and the rotation of the second tracking motor respectively according to signal break-make, it is achieved monitoring device monitoring corresponding depth.
As preferably, described Surface Tracker section morphology is soil shape, adopts light material to make, and density is less than 0.8 times of water density.
As preferably, described first emitting led for blue light, arrange blue light narrow band pass filter before the first photodiode, second is emitting led for red light, arranges HONGGUANG narrow band pass filter before the second photodiode.
As preferably, described first emitting led lower boundary and the second emitting led lower boundary distance h, h are set to water surface ripple maximum height.
As preferably, under original state, on described Surface Tracker, interface and the first emitting led 1 lower boundary are in same plane.
Depth of water autotracker in a kind of above-mentioned unsteady flow simulation test, comprises the following steps:
1) tracking device is arranged in the water surface, Surface Tracker block blue light, the first photodiode signal open circuit, the second photodiode signal conducting, the first tracking motor is failure to actuate;
2) water surface rises, Surface Tracker moves upward, first photodiode signal open circuit, second photodiode signal open circuit, controller controls the first tracking motor and rotates forward, single pulse band moving sleeve 0.2 times of h of rising, 0.2 times of h of Surface Tracker relative drop, controller controls the second tracking motor simultaneously and rotates forward, single pulse monitoring device move distance is B*0.2*hmm, B is the multiple of the depth of water, then the second tracking motor realizes B times of depth of water rising tracking, repeat said process, until the second photodiode signal conducting, first photodiode signal open circuit, first tracking motor and the second tracking motor are failure to actuate,
3) water surface declines, and Surface Tracker moves downward, the first photodiode signal conducting, and controller controls the first tracking motor reversion, and single pulse band moving sleeve declines 0.2 times of h, and Surface Tracker rises 0.2 times of h relatively; Controller controls the second tracking motor reversion simultaneously, single pulse monitoring device move distance is B*0.2*hmm, then the second tracking motor realizes B times of depth of water decline tracking, repeat said process, until the first photodiode signal open circuit, first tracking motor, the first tracking motor and the second tracking motor are failure to actuate.
In the present invention, the first photodiode disconnects, the second photodiode conducting, and sleeve is failure to actuate; First photodiode disconnects, and the second photodiode disconnects, and sleeve moves upward; First photodiode conducting, the second photodiode conducting, sleeve moves downward.
New water detection method is set up in present invention innovation, controls motor action by photoelectricity break-make, sets up the first motor and the second motor respectively, and the first motor is used for trackable surface, and the second motor is used for following the tracks of the specific depth of water, thus realizing the tracking of different water depth.
Beneficial effect: depth of water autotracker in the unsteady flow simulation test of the present invention, the first tracking motor and the second tracking motor can be passed through, realize various depth of water track demand, started by photodiode and emitting led high sensitivity performance co-controlling tracking motor, improve tracking accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, depth of water autotracker in the unsteady flow simulation test of the present invention, including sleeve, Surface Tracker and controller, described Surface Tracker is positioned at sleeve, it is provided with first emitting led in described sleeve, second is emitting led, first photodiode and the second photodiode, it is described that first is emitting led and the first photodiode is just to layout, it is described that second is emitting led and the second photodiode is just to layout, first photodiode and the second photodiode are connected with controller signals respectively, controller is connected with the first tracking motor and the second tracking motor respectively, first tracking motor passes through the first actuating device and sleeve connection, second tracking motor is connected with monitoring device by the second actuating device, first actuating device can be worm gear structure, it can also be gear & rack structure, first tracking motor rotates, band moving sleeve moves up and down.
When actually used, the second tracking motor is connected with monitoring device flow sensor by the second actuating device, monitors device such as flow sensor. when measuring mean flow rate, it is necessary to 0.6 times of relative change of moving, the move distance of flow sensor is equal to 0.6 times of the first tracking motor move distance. second actuating device can be connect rope or connecting rod, flow sensor is arranged in connection rope or connecting rod, when controller receives individual pulse, controlling, the second tracking motor drive flow sensor move distance is B times of the distance that the first tracking motor moves with moving sleeve. when first actuating device is gear & rack structure, the motor shaft of the first tracking motor is gear shaft, sleeve is provided with tooth bar, second actuating device is connecting rod, in connecting rod, processing has the gear teeth, the motor shaft of the second tracking motor is gear shaft, the gear teeth in connecting rod are the same with tooth bar, the gear shaft size of the first tracking motor and the second tracking motor is too, individual pulse drives the rotating speed of the first tracking motor and the second tracking motor different, the rotating speed of the second tracking motor is B times of the first tracing motor rotation speed, realize that individual pulse flow sensor moves B times that distance is sleeve displacement. whole first tracking motor and the second tracking motor are fixed on support, and sleeve moves along the slide rail being fixed on support.
In the present invention, described Surface Tracker section morphology is soil shape, adopts light material to make, and density is less than 0.8 times of water density. Described first emitting led for blue light, arrange blue light narrow band pass filter before the first photodiode, second is emitting led for red light, arranges HONGGUANG narrow band pass filter before the second photodiode. Described first emitting led lower boundary and the second emitting led lower boundary distance h, h are set to water surface ripple maximum height. Under original state, on described Surface Tracker, interface and the first emitting led 1 lower boundary are in same plane.
Depth of water autotracker in a kind of above-mentioned unsteady flow simulation test, comprises the following steps:
1) tracking device is arranged in the water surface, Surface Tracker block blue light, the first photodiode signal open circuit, the second photodiode signal conducting, the first tracking motor is failure to actuate;
2) water surface rises, and Surface Tracker moves upward, the first photodiode signal open circuit, second photodiode signal open circuit, controller controls the first tracking motor and rotates forward, single pulse band moving sleeve rising 0.2 times of h, 0.2 times of h of Surface Tracker relative drop, controller controls the second tracking motor simultaneously and rotates forward, single pulse flow sensor move distance is B*0.2*hmm, B is the multiple of the depth of water, and parameter B follows the trail of according to the depth of water to be needed to arrange, follow the trail of 0.6 times of depth of water, then B is set to 0.6; Follow the trail of the water surface, then B is set to 1, then the second tracking motor realizes B times of depth of water rising tracking. Repeating said process, until the second photodiode signal conducting, the first photodiode signal open circuit, the first tracking motor and the second tracking motor are failure to actuate;
3) water surface declines, and Surface Tracker moves downward, the first photodiode signal conducting, and controller controls the first tracking motor reversion, and single pulse band moving sleeve declines 0.2 times of h, and Surface Tracker rises 0.2 times of h relatively; Controller controls the second tracking motor reversion, and single pulse move distance is B*0.2*hmm, then the second tracking motor realizes B times of depth of water decline tracking. Repeat said process, until the first photodiode signal open circuit, the first tracking motor, the first tracking motor and the second tracking motor are failure to actuate.
Illustrating following the tracks of 0.6 times of depth of water of device tracking below, parameter to be measured is flow velocity, and measurement instrument is current meter.
When the water surface rises, the such as water surface rises H (H is more than h), the former depth of water is x, then showing the depth of water is (x+H), follow the tracks of device and be positioned at 0.6x depth of water place, first photodiode signal open circuit, second photodiode signal open circuit, controller controls the first tracking motor simultaneously and the second tracking motor rotates forward, first tracking motor is by first actuating device band moving sleeve 0.2 times of H of rising, second tracking motor drives current meter rising 0.12H, after 5 times are moved, second photodiode signal conducting, first photodiode signal open circuit, first tracking motor stop motion, second tracking motor drives current meter rising 0.12H*5=0.6H, then the new depth of water of current meter is 0.6x+0.6h, achieve 0.6 times of depth of water to follow the tracks of.
The above is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (6)
1. depth of water autotracker in unsteady flow simulation test, it is characterized in that: include sleeve, Surface Tracker and controller, described Surface Tracker is positioned at sleeve, it is provided with first emitting led in described sleeve, second is emitting led, first photodiode and the second photodiode, it is described that first is emitting led and the first photodiode is just to layout, it is described that second is emitting led and the second photodiode is just to layout, first photodiode and the second photodiode are connected with controller signals respectively, controller is connected with the first tracking motor and the second tracking motor respectively, first tracking motor passes through the first actuating device and sleeve connection, second tracking motor is connected with monitoring device by the second actuating device, following the water surface by Surface Tracker to move up and down, control the signal break-make of the first photodiode and the second photodiode, controller controls the first tracking motor and the rotation of the second tracking motor respectively according to signal break-make, it is achieved corresponding depth is followed the tracks of.
2. depth of water autotracker in unsteady flow simulation test according to claim 1, it is characterised in that: described Surface Tracker section morphology is soil shape, adopts light material to make, and density is less than 0.8 times of water density.
3. depth of water autotracker in unsteady flow simulation test according to claim 2, it is characterized in that: described first emitting led for blue light, blue light narrow band pass filter is arranged before first photodiode, second is emitting led for red light, layout HONGGUANG narrow band pass filter before the second photodiode.
4. depth of water autotracker in unsteady flow simulation test according to claim 3, it is characterised in that: described first emitting led lower boundary and the second emitting led lower boundary distance h, h are set to water surface ripple maximum height.
5. depth of water autotracker in unsteady flow simulation test according to claim 4, it is characterised in that: on described Surface Tracker, interface and the first emitting led 1 lower boundary are in same plane.
6. depth of water autotracker in a unsteady flow simulation test as claimed in claim 5, it is characterised in that comprise the following steps:
1) tracking device is arranged in the water surface, Surface Tracker block blue light, the first photodiode signal open circuit, the second photodiode signal conducting, the first tracking motor is failure to actuate;
2) water surface rises, Surface Tracker moves upward, first photodiode signal open circuit, second photodiode signal open circuit, controller controls the first tracking motor and rotates forward, single pulse band moving sleeve 0.2 times of h of rising, controller controls the second tracking motor simultaneously and rotates forward, single pulse monitoring device move distance is B*0.2*hmm, B is the multiple of the depth of water, repeats said process, until the second photodiode signal conducting, first photodiode signal open circuit, the first tracking motor and the second tracking motor are failure to actuate;
3) water surface declines, and Surface Tracker moves downward, the first photodiode signal conducting, and controller controls the first tracking motor reversion, single pulse band moving sleeve 0.2 times of h of decline; Controller controls the second tracking motor reversion simultaneously, and single pulse monitoring device move distance is B*0.2*hmm, repeats said process, until the first photodiode signal open circuit, the first tracking motor, the first tracking motor and the second tracking motor are failure to actuate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610066184.0A CN105628336B (en) | 2016-01-29 | 2016-01-29 | Depth of water autotracker and method in unsteady flow simulation test |
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| CN201610066184.0A CN105628336B (en) | 2016-01-29 | 2016-01-29 | Depth of water autotracker and method in unsteady flow simulation test |
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| CN105628336B CN105628336B (en) | 2018-05-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1189039A1 (en) * | 2000-09-18 | 2002-03-20 | NTT Advanced Technology Corporation | Fiber-optic liquid level measurement device |
| CN101121326A (en) * | 2006-08-08 | 2008-02-13 | 研能科技股份有限公司 | Ink storage quantity detecting device |
| WO2013182919A2 (en) * | 2012-06-04 | 2013-12-12 | Golovanov Sergey Aleksandrovich | Float liquid level gauge |
| CN103512638A (en) * | 2013-10-14 | 2014-01-15 | 张维国 | Liquid level sensor and measuring method thereof |
| CN204115820U (en) * | 2014-11-11 | 2015-01-21 | 大庆市日上仪器制造有限公司 | Boiling range two-way infrared level tracking means |
-
2016
- 2016-01-29 CN CN201610066184.0A patent/CN105628336B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1189039A1 (en) * | 2000-09-18 | 2002-03-20 | NTT Advanced Technology Corporation | Fiber-optic liquid level measurement device |
| CN101121326A (en) * | 2006-08-08 | 2008-02-13 | 研能科技股份有限公司 | Ink storage quantity detecting device |
| WO2013182919A2 (en) * | 2012-06-04 | 2013-12-12 | Golovanov Sergey Aleksandrovich | Float liquid level gauge |
| CN103512638A (en) * | 2013-10-14 | 2014-01-15 | 张维国 | Liquid level sensor and measuring method thereof |
| CN204115820U (en) * | 2014-11-11 | 2015-01-21 | 大庆市日上仪器制造有限公司 | Boiling range two-way infrared level tracking means |
Non-Patent Citations (2)
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| 凌伟成: "智能化流速与水位检测***", 《中国科技信息》 * |
| 汪霖等: "水位及定比例跟踪水深的流速检测", 《仪器仪表学报》 * |
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