Underwater carbon dioxide measuring device

Abstract

The utility model provides a carbon dioxide measuring device which comprises a waterproof shell, a waterproof breathable film, a gas chamber and a measuring chamber, the waterproof breathable film is arranged on one side of the waterproof shell, the gas chamber is arranged close to the waterproof breathable film, and the measuring chamber is arranged close to the gas chamber; the gas chamber comprises a temperature sensor, a pressure sensor and an aspirator; the measuring chamber comprises a motor, an infrared light source, a chopping plate, a gas inlet, a carbon dioxide detector, an amplifier, a signal operation processor and a signal output module; the waterproof shell and the waterproof breathable film are adopted, and the gas chamber is arranged between the measuring chamber and the waterproof breathable film, so that the measuring device has the possibility of measuring in water for a long time; as the depths and pressures of rivers, lakes and seas are different, the data of the carbon dioxide detector can be compensated and adjusted through the data of the temperature sensor and the pressure sensor of the gas chamber, so that the data are more accurate.

Description

Technical Field

[0001] The utility model relates to the field of gas monitoring, in particular to an underwater carbon dioxide measuring device. Background Art

[0002] As atmospheric carbon dioxide concentrations continue to rise, some of it dissolves in rivers, lakes, and oceans, lowering the water's pH and leading to water acidification. Water acidification can severely impact aquatic organisms, especially those with calcium carbonate shells like shellfish and corals, by reducing their growth, affecting their reproductive capacity, and even causing their death. Measuring underwater carbon dioxide levels helps assess the health and stability of marine ecosystems.

[0003] Commonly used carbon dioxide measurement devices can perform water measurements in a relatively short period of time. Data is obtained through multiple measurements and then analyzed. The measurement activities are cumbersome, and the measured data will also be affected by pressure and temperature, resulting in data distortion. Utility Model Content

[0004] The purpose of the present utility model is to solve the above-mentioned problems and provide an underwater carbon dioxide measuring device. By adopting a waterproof housing and a waterproof breathable membrane, and disposing a gas chamber between the measuring chamber and the waterproof breathable membrane, the measuring device is capable of measuring underwater for a longer period of time. Since the depth and pressure of rivers, lakes and seas vary, the data from the temperature sensor and pressure sensor of the gas chamber can be used to compensate and adjust the data of the carbon dioxide detector, making the data more accurate.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions.

[0006] An underwater carbon dioxide measuring device includes a waterproof housing, a waterproof breathable membrane, a gas chamber, and a measuring chamber. The waterproof breathable membrane is arranged on one side of the waterproof housing, the gas chamber is arranged close to the waterproof breathable membrane, and the measuring chamber is arranged close to the gas chamber. The gas chamber includes a temperature sensor, a pressure sensor, and an aspirator. The measuring chamber includes a motor, an infrared light source, a chopper, a gas inlet, a carbon dioxide detector, an amplifier, a signal operation processor, and a signal output module.

[0007] Furthermore, the gas chamber is hollow.

[0008] Furthermore, the temperature sensor and the pressure sensor are arranged close to the waterproof breathable membrane.

[0009] Furthermore, the temperature sensor and the pressure sensor are connected to the signal operation processor.

[0010] Furthermore, the aspirator is arranged close to the gas inlet.

[0011] Furthermore, the motor is connected to the chopping plate.

[0012] Furthermore, the infrared light source is arranged between the motor and the chopping plate.

[0013] Furthermore, the carbon dioxide detector is connected to the amplifier.

[0014] Furthermore, the amplifier is connected to the signal operation processor.

[0015] Furthermore, the signal operation processor is connected to the signal output module.

[0016] The positive effects of the underwater carbon dioxide measuring device of the utility model are:

[0017] The utility model adopts a waterproof shell and a waterproof breathable membrane, and at the same time sets a gas chamber between the measuring chamber and the waterproof breathable membrane, so that the measuring device can measure in water for a long time; since the depth and pressure of rivers, lakes and seas vary, the data of the temperature sensor and pressure sensor of the gas chamber can be used to compensate and adjust the data of the carbon dioxide detector to make the data more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram provided by an embodiment of the present utility model.

[0019] The numbers in the figure are:

[0020] 1. Waterproof housing; 2. Waterproof breathable membrane; 3. Gas chamber; 4. Temperature sensor; 5. Pressure sensor; 6. Aspirator; 7. Motor; 8. Infrared light source; 9. Chopper; 10. Gas inlet; 11. Carbon dioxide detector; 12. Amplifier; 13. Signal operation processor; 14. Signal output module. DETAILED DESCRIPTION

[0021] The following is a specific implementation of the underwater carbon dioxide measuring device of the present invention in conjunction with the accompanying drawings, but it should be pointed out that the specific implementation is not intended to limit the specific implementation of the present invention. All similar structures and similar variations of the present invention should be included in the scope of protection of the present invention. The description of the following embodiments is with reference to the attached drawings to illustrate specific embodiments in which the present invention can be implemented. The directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0022] See also Figure 1The underwater carbon dioxide measurement device includes a waterproof housing 1, a waterproof breathable membrane 2, a gas chamber 3, and a measurement chamber. The waterproof breathable membrane 2 is disposed on one side of the waterproof housing 1, the gas chamber 3 is disposed adjacent to the waterproof breathable membrane 2, and the measurement chamber is disposed adjacent to the gas chamber 3. The gas chamber 3 includes a temperature sensor 4, a pressure sensor 5, and an aspirator 6. The measurement chamber includes a motor 7, an infrared light source 8, a chopper 9, a gas inlet 10, a carbon dioxide detector 11, an amplifier 12, a signal operation processor 13, and a signal output module 14.

[0023] The waterproof housing 1 is made of titanium alloy, offering excellent airtightness. The waterproof, breathable membrane 2 is made of expanded polytetrafluoroethylene, polyethersulfone, or polyurethane. The gas chamber 3 is hollow. The temperature sensor 4 and the pressure sensor 5 are located on either side of the gas chamber 3, positioned close to the waterproof, breathable membrane 2. These sensors are connected to the signal processing processor 13. The data from these sensors can be used to compensate for the data from the carbon dioxide detector 11.

[0024] The aspirator 6 is positioned near the gas inlet 10, the motor 7 is connected to the chopper plate 9, and the infrared light source 8 is positioned between the motor 7 and the chopper plate 9. The motor 7 drives the chopper plate 9 to rotate at a certain frequency, periodically blocking and transmitting infrared light. The originally continuous infrared light is cut into a discontinuous light signal by the chopper plate 9, causing the infrared light intensity to change periodically over time, forming an alternating infrared signal. The modulated infrared signal can effectively reduce the influence of DC drift and background noise, thereby improving the accuracy and stability of the measurement. The carbon dioxide detector 11 is connected to the amplifier 12, which is used to amplify the signal of the carbon dioxide detector 11. The amplifier 12 is connected to the signal operation processor 13, which calculates the data of the carbon dioxide detector 11 and the data of the temperature sensor 4 and the pressure sensor 5 and outputs the final data. The signal operation processor 13 is connected to the signal output module 14, which can transmit the data by cable or wirelessly.

[0025] The present invention adopts a waterproof shell 1 and a waterproof breathable membrane 2, and at the same time sets a gas chamber 3 between the measuring chamber and the waterproof breathable membrane 2, so that the measuring device has the possibility of measuring in water for a long time; due to the differences in depth and pressure of rivers, lakes and seas, the data of the temperature sensor 4 and the pressure sensor 5 of the gas chamber 3 can be used to compensate and adjust the data of the carbon dioxide detector 11 to make the data more accurate.

Claims

1. An underwater carbon dioxide measuring device, characterized in that: The device comprises a waterproof shell, a waterproof breathable membrane, a gas chamber and a measuring chamber. The waterproof breathable membrane is arranged on one side of the waterproof shell, the gas chamber is arranged close to the waterproof breathable membrane, and the measuring chamber is arranged close to the gas chamber. The gas chamber comprises a temperature sensor, a pressure sensor and an aspirator, and the measuring chamber comprises a motor, an infrared light source, a chopping plate, a gas inlet, a carbon dioxide detector, an amplifier, a signal operation processor and a signal output module.

2. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The gas chamber is hollow.

3. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The temperature sensor and the pressure sensor are arranged close to the waterproof breathable membrane.

4. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The temperature sensor and the pressure sensor are connected to the signal operation processor.

5. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The aspirator is arranged close to the gas inlet.

6. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The motor is connected to the chopping plate.

7. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The infrared light source is arranged between the motor and the chopping plate.

8. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The carbon dioxide detector is connected to the amplifier.

9. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The amplifier is connected to the signal operation processor.

10. The underwater carbon dioxide measuring device according to claim 1, characterized in that: The signal operation processor is connected to the signal output module.

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