CN212255069U - Water attenuation coefficient in-situ measuring device - Google Patents
Water attenuation coefficient in-situ measuring device Download PDFInfo
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- CN212255069U CN212255069U CN202020209929.6U CN202020209929U CN212255069U CN 212255069 U CN212255069 U CN 212255069U CN 202020209929 U CN202020209929 U CN 202020209929U CN 212255069 U CN212255069 U CN 212255069U
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Abstract
The utility model discloses a water attenuation coefficient in-situ measuring device, which is mainly used for measuring the water attenuation coefficient and sequentially comprises a light source cavity, a water inlet cavity and a detection cavity, and is characterized in that a first power supply and a light source device are fixedly arranged in the light source cavity and connected with the light source device; the water inlet cavity is a cavity with a water inlet; an illumination detection module, a second power supply and a microcontroller are fixedly installed in the detection cavity, the illumination detection module is respectively covered with red, green and blue narrow bandpass filters to form three detection channels, the illumination detection module is connected with the microcontroller, and the second power supply is connected with the illumination detection module and the microcontroller to supply power; the utility model discloses utilize microcontroller, three channel illuminance detection modules, realize measuring the sub-band of visible light attenuation coefficient under the condition of no grating.
Description
Technical Field
The utility model relates to a measure the field, especially relate to a water attenuation coefficient normal position measuring device.
Background
The attenuation condition of visible light in a water body medium is influenced by various factors, such as solute, conductivity, water color, turbidity and the like, the water body detection is realized by using an optical method, the inherent optical property of the water body can be researched by measuring the attenuation coefficient of the water body, the water quality can be detected, and the environmental factors around the water body can be analyzed.
Several conventional methods for measuring the rate of water decay have the following problems: the traditional optical measuring instruments such as spectrometers and spectrometers are not suitable for launching water, and have high requirements on the internal space of the instrument and high failure rate; the traditional optical instrument has high cost and is difficult to carry out in-situ measurement on a large-scale water body; the attenuation rate obtained by inversion by using satellite remote sensing data shows the characteristics of the whole area, and the accuracy is insufficient.
Disclosure of Invention
The utility model provides a water attenuation coefficient normal position measuring device for solve above-mentioned problem.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a water attenuation coefficient normal position measuring device, includes the light source chamber in proper order, goes into the water chamber and surveys the chamber, the installation is fixed with first power and light source device in the light source intracavity, go into the cavity of water chamber for being equipped with the water inlet, it is fixed with illumination detection module, second power and microcontroller to survey the intracavity installation, the light source chamber, surveys the chamber and is sealed chamber.
As a further technical solution of the present invention: the light source cavity, the water inlet cavity and the detection cavity are made of transparent and light-transmitting acrylic.
As a further technical solution of the present invention: the first power supply is connected with the light source device and used for supplying power.
As a further technical solution of the present invention: the light source device is an LED array and is close to the cavity wall close to the water inlet cavity.
As a further technical solution of the present invention: the illumination detection module is additionally provided with a narrow band pass filter, and the narrow band pass filter is a red light filter, a green light filter and a blue light filter respectively to form a red detection channel, a green detection channel and a blue detection channel.
As a further technical solution of the present invention: the microcontroller is connected with the illumination detection module and controls the on/off of the illumination detection module and data transmission and storage.
As a further technical solution of the present invention: and the second power supply is connected with the illumination detection module and the microcontroller and used for supplying power.
The most preferred system operating principle described above is substantially as follows: the light source device emits a white light source, the white light source is emitted from the light source cavity to the water inlet cavity, water flows into the water inlet cavity from the water inlet and fills the water inlet cavity, the light source is subjected to diffuse reflection in the water inlet cavity and reaches the illumination detection module in the detection cavity, the illumination values D1 of the red channel, the green channel and the blue channel are respectively obtained, the values are in a ratio with the illumination value in the air before the system is drained, and the attenuation coefficient of the water body is obtained.
The utility model discloses mainly there is following beneficial effect.
1. The utility model discloses the shell in light source chamber, detection chamber is high with cavity fixed material transparency, and is little to measuring the attenuation coefficient influence, and the cost is lower, and the processing degree of difficulty is low, the preparation of being convenient for, and waterproof performance is good, and intensity is high, can carry out longer time's measurement under water.
2. The utility model discloses well three illuminance detection module window coats and is stamped the narrowband optical filter of different wave bands, can carry out the illuminance measurement of sub-wave band to white light source simultaneously, has reduced technical cost, has solved the difficult problem of launching of precision instruments such as spectrum appearance, spectrometer.
3. The utility model discloses in, use the microcontroller of low-power consumption, the effectual effective running time who promotes the device, microcontroller uses wireless communication's mode to pass information to the computer, has solved the difficulty that wire transmission brought for detecting system offal.
4. The utility model discloses well power supply unit adopts small-size solar power, can last the power supply to the device, guarantees the closure of device, is favorable to launching and carries out the normal position and survey.
Drawings
FIG. 1 is an overall device diagram of an in-situ water attenuation coefficient measuring device.
The reference numbers are as follows:
the system comprises a light source cavity 1, a first power supply 2, a light source device 3, a water inlet cavity 4, a detection cavity 5, a red light illumination detection module 61, a green light illumination detection module 62, a blue light illumination detection module 63, a microcontroller 7 and a second power supply 8.
Detailed Description
In order to facilitate understanding of the embodiments of the present invention, the following description is given in terms of several specific embodiments with reference to the accompanying drawings, and each embodiment is not to be construed as limiting the embodiments of the present invention, and the drawings are schematic drawings, so that the present invention is not limited to the size or scale of the schematic drawings, and it is to be understood that in the claims and the description of the patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
As shown in fig. 1, the utility model provides a water attenuation coefficient normal position measuring device includes light source chamber 1 in proper order, goes into water cavity 4, surveys chamber 5, light source chamber 1, surveys chamber 5 and be sealed chamber, light source chamber 1, go into water cavity 4, survey 5 zonulae occludens in chamber.
A first power supply 2 and a light source device 3 are fixedly arranged in the light source cavity 1, and the first power supply 2 is connected with the light source device 3 and used for supplying power to the light source device 3; the light source device 3 is an LED array, the front end of the light source device is close to the wall of the water inlet cavity 4, the light source device 3 emits a white light source with a certain divergence angle, and the white light source is incident into the water inlet cavity 4 from the light source cavity 1.
The water inlet cavity 4 comprises a water inlet 9, the water inlet 9 is used for introducing water flow and keeping balance of internal and external water pressure, when the system conducts underwater detection, water flows into the water inlet cavity 4 through the water inlet 9 and is filled in the water inlet cavity 4, a white light source incident from the light source cavity 1 in the water inlet cavity 4 is transmitted in a water body, and the light source is attenuated in absorption, scattering and the like in the transmission process and then reaches the detection cavity 5.
An illumination detection module, a microcontroller 7 and a second power supply 8 are fixedly installed in the detection cavity 5, the second power supply 8 is connected with the illumination detection module and the microcontroller 7 to supply power, the illumination detection module is additionally provided with a narrow band pass filter, the narrow band pass filter comprises a red light filter, a green light filter and a blue light filter, the red light filter, the green light filter and the blue light filter are respectively called as a red light illumination detection module 61, a green light illumination detection module 62 and a blue light illumination detection module 63 to form three-channel water attenuation coefficient measurement, the red light illumination detection module 61, the green light illumination detection module 62 and the blue light illumination detection module 63 are uniformly arranged around the center of the detection cavity, and the illumination detection module is close to the cavity wall close to the water inlet cavity 4 to receive an attenuation light source from the water inlet; the microcontroller 7 is connected with the illumination detection module, controls the on or off of the illumination detector, receives detection data of the illumination detection module and stores the detection data, and the microcontroller 7 is provided with a wireless transmission device and transmits the underwater detected data to a shore base through a wireless communication protocol.
The first power supply 2 and the second power supply 8 can adopt solar batteries and lithium battery lead storage batteries, and are provided with voltage stabilizing devices.
The working principle of the in-situ detection of the attenuation coefficient of the water body is as follows: the light source module emits a white light source, the white light source is emitted from the light source cavity 1 to the water inlet cavity 4, water flows into the water inlet cavity 4 from the water inlet 9 and is filled in the water inlet cavity 4, the light source reaches the illumination detector in the detection cavity 5 through diffuse reflection in the water inlet cavity 4, illumination values D1 of red, green and blue channels are obtained respectively, the values are in a ratio with the illumination values in the air before water is discharged from the system, and the attenuation coefficient of the water body is obtained.
In this embodiment, the optimal water attenuation coefficient detection process includes the following steps: firstly, placing an experimental device in a depth of 5-10 meters below the surface of near-shore seawater by using a cable and a buoy, ensuring that a water inlet cavity 4 is filled with seawater, transmitting and opening an illumination detection module to a microcontroller 7 by using a shore base in a signal transmission range, starting the illumination detection module to work, continuously acquiring illumination data of each wave band within 3-5 minutes, transmitting the data back to the shore base through wireless transmission, and obtaining the total attenuation coefficient of the water body to visible light of each wave band through related calculation of data processing and radiation transmission.
Claims (9)
1. The utility model provides a water attenuation coefficient normal position measuring device, includes light source chamber (1), income water chamber (4), surveys chamber (5) in proper order, its characterized in that, light source chamber (1) internal installation is fixed with first power (2) and light source device (3), it is the cavity to go into water chamber (4), opens there is water inlet (9), it is fixed with illumination detection module, second power (8) and microcontroller (7) to survey chamber (5) internal installation, light source chamber (1), surveys chamber (5) and is the sealed chamber.
2. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the first power source (2) is connected to the light source device (3) for supplying power.
3. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the light source device (3) is an LED array, and is close to the wall of the water inlet chamber (4).
4. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the illuminance detection module comprises a red illuminance detection module (61), a green illuminance detection module (62), and a blue illuminance detection module (63), and the red illuminance detection module (61), the green illuminance detection module (62), and the blue illuminance detection module (63) are respectively attached with a red narrow band pass filter, a green narrow band pass filter, and a blue narrow band pass filter to form three detection channels of red, green, and blue.
5. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the illumination detection modules are uniformly arranged around the center of the detection cavity (5).
6. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the microcontroller (7) is connected with the illumination detection module, and controls the on/off of the illumination detection module and the transmission and storage of data.
7. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the microcontroller (7) is equipped with a wireless transmission device for data transmission and communication with shore base.
8. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the second power supply (8) is connected with the illumination detection module and the microcontroller (7) to provide power supply.
9. The in-situ water attenuation coefficient measuring device according to claim 1, wherein the light source cavity (1), the water inlet cavity (4) and the detection cavity (5) are made of transparent acrylic material, and the first power supply (2), the light source device (3), the illumination detection module, the microcontroller (7) and the second power supply (8) are made of epoxy resin, nylon, rubber material and PLA as fixing materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020209929.6U CN212255069U (en) | 2020-02-26 | 2020-02-26 | Water attenuation coefficient in-situ measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020209929.6U CN212255069U (en) | 2020-02-26 | 2020-02-26 | Water attenuation coefficient in-situ measuring device |
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| CN212255069U true CN212255069U (en) | 2020-12-29 |
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| CN202020209929.6U Expired - Fee Related CN212255069U (en) | 2020-02-26 | 2020-02-26 | Water attenuation coefficient in-situ measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272711A (en) * | 2020-02-26 | 2020-06-12 | 中国海洋大学 | Water attenuation coefficient in-situ measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272711A (en) * | 2020-02-26 | 2020-06-12 | 中国海洋大学 | Water attenuation coefficient in-situ measuring device |
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