KR20060038155A - Device of changing buoyancy and machine of gathering environmental informations under water using the device - Google Patents

Abstract

The buoyancy converter of the present invention includes a hard body, a soft body, an incompressible fluid and a pump. The rigid body can maintain a constant volume without deformation even in high water pressure, the soft body is formed of a material that can be deformed can change the volume as the incompressible fluid enters and exits. The buoyancy force applied to the buoyancy converter is changed as the incompressible fluid comes to the hard body and the soft body by the pump, and the buoyancy converter can move up and down by the buoyancy change. The buoyancy converter is used in a small device that can change the buoyancy by moving a certain amount of incompressible fluid without entering and exiting the material.If enough energy is provided, the buoyancy converter can rise and fall indefinitely. It is possible to remain in the ocean for a long time and perform the necessary work.

Description

DEVICE OF CHANGING BUOYANCY AND MACHINE OF GATHERING ENVIRONMENTAL INFORMATIONS UNDER WATER USING THE DEVICE}

1 and 2 are cross-sectional views of the buoyancy converter according to the first embodiment of the present invention.

3 and 4 are cross-sectional views of the buoyancy converter according to a second embodiment of the present invention.

5 is a front view of the underwater measuring apparatus according to the third embodiment of the present invention.

6 is a partial cross-sectional view of the underwater measuring apparatus according to the third embodiment.

7 is an exploded view of the underwater measuring apparatus according to the third embodiment.

8 is a partial cutaway perspective view for explaining a hard body and a pump of the underwater measurement apparatus according to the third embodiment.

9 is a partially enlarged cross-sectional view for explaining a process of raising the underwater measuring apparatus according to the third embodiment.

10 is a partially enlarged cross-sectional view for explaining a process of descending the underwater measuring apparatus according to the third embodiment.

11 is a configuration diagram for explaining the operation of the underwater measurement apparatus according to the third embodiment.

<Explanation of symbols for the main parts of the drawings>

300: underwater measuring device 305: housing

310: rigid body 312: fixed chamber

314: Built-in plate 320: bladder

330: Oil 340: Pump

342: piston 352: motor

354 ： Ball screw 355 ： Nut

356: screw shaft 357: coupling

360: measurement part 370: control part

375: Memory 380: Antenna

The present invention relates to a buoyancy converter and underwater measurement equipment. More specifically, the present invention provides a buoyancy converter that can vertically move up and down in water and an underwater measuring device capable of real-time measuring environmental information in the water while moving up and down using the buoyancy converter. It is about.

Marine science began with a simple suspicion of knowing the ocean, and this marine science is now helping to understand the ocean in greater depth. Recently, as the sea is expected to be a place of life for the future of humanity, many efforts are being made to discover the characteristics of the sea.

However, due to the unique medium of seawater, there are difficulties in exploration and information transmission, and many barriers such as the huge water pressure that increases by about 1 atmosphere every 10m prevent the efforts to identify the ocean. Modern oceanologists are developing various exploration and observation techniques to overcome these barriers, and are using advanced sensing techniques such as satellite remote sensing techniques for research.

To date, the dynamic subject of observation and investigation of the ocean is the survey ship. Although the voyage itself has been much lower than in the past, which was considered an ocean survey, the position of the survey vessel in the marine survey is still strong. At present, as the function of the irradiation ship is very diversified and the equipment is changed rapidly, the characteristics required as the irradiation ship are becoming more and more difficult. For example, survey ships must be designed to withstand the weather or waves, as well as to leave the normal route and to continue sailing regardless of sea or season, and the ship's range should be longer than that of normal ships. In addition, high-tech equipment such as sound equipment and precision observers should be able to operate easily and efficiently, and should have high stability for boarding researchers conducting experiments or surveys on board, and should have low shaking, noise, and vibration.

However, in order to operate a ship that satisfies these conditions, expensive ships must be used, and embarkation researchers must always move with the ship. If you require a high level of expertise, it may be a good idea to take measurements while traveling directly to the ocean, but if you are taking a long time to move, it is as simple as measuring changes in water temperature and water pressure. It can be very monotonous and dangerous in itself.

In order to solve this problem, an automatic measuring device capable of automatically measuring the marine environment is disclosed. These measuring devices range from simple instruments that measure water temperature, water depth, salinity, dissolved oxygen, etc. to high-level instruments using sound waves or laser beams. You can do it. These buoy measuring devices can measure the surrounding information of the site and transmit recorded or recorded information, but they cannot move the measuring device automatically and collect necessary information according to the depth. The problem is that the development of equipment is still insufficient.

The present invention is to overcome the above problems, the underwater measuring apparatus according to the present invention has the characteristic that can measure the marine environment information according to the depth while moving up and down automatically in the water.

The underwater measuring device according to the present invention has a characteristic of collecting marine environment information according to the depth, and then transmitting the collected information to an analysis subject located at a far distance through a satellite or an external repeater.

Underwater measuring device according to the present invention has a characteristic that can maintain a stable posture in the water and the surface.

The buoyancy converter according to the present invention has a characteristic that can be moved vertically in the water vertically through the buoyancy change.

The buoyancy converter according to the present invention can be stably moved up and down in the water without vibration or noise, and has a characteristic of minimizing the influence on the precision machine moving with the buoyancy converter.

The buoyancy converter according to the present invention has a power saving characteristic that can operate independently for a long time using less power.

The buoyancy converter of the present invention includes a rigid body, a soft body, an incompressible fluid and a pump.

The rigid body includes a fixed volume chamber and is made of a high strength material such as a metal or an alloy to maintain a constant volume without deformation even in high water pressure. On the other hand, the soft body includes a variable volume chamber, and is formed of a material that is deformable to some extent, such as rubber, and has a characteristic of changing its volume as the incompressible fluid enters and exits. Incompressible fluid is a fluid that maintains a constant volume irrespective of external pressure change, and may include a case in which it is substantially incompressible such as oil, and the density of the incompressible fluid is higher or lower than the density of the surrounding medium. It may include all.

Assume that the buoyancy converter stays at a certain depth in water, and the incompressible fluid is an oil of lower density than water. When the pump operates to move the fluid from the fixed chamber to the variable chamber, the volume of the variable chamber is increased and the buoyancy is increased because only the volume is increased without changing the overall weight, so that the buoyancy converter is raised in the water. The pump now operates in reverse, moving fluid from the variable chamber to the stationary chamber, reducing the volume of the variable chamber and reducing the buoyancy by the reduced volume, causing the buoyancy converter to descend underwater. That is, the buoyancy is changed by the operation of the pump, and the buoyancy converter can move up and down by the change of the buoyancy.

Conventional submarines fill the tank with seawater to sink the body and use the principle of filling the tank with compressed air to float, but the buoyancy converter according to the present invention can be mainly used in a small device as a certain amount without entering or exiting the material The buoyancy can be changed by moving the incompressible fluid. Thus, if only enough energy is provided to sustain a long period of time, the buoyancy converter can repeat rising and falling to infinity and performing the necessary work while floating in the ocean for a long period of one to two years.

Underwater measuring device according to the present invention uses the principle of the above-described buoyancy converter, the housing (housing), a rigid body having a constant volume inside the housing, a bladder (bladder) having a variable volume outside the housing, incompressible fluid, Pump, measuring part, and memory.

The rigid body is mounted inside the housing, has a constant volume and includes a fixed chamber. On the other hand, the bladder is exposed to the outside of the housing and has a varying volume, including a variable chamber. In addition, the incompressible fluid may include a fluid having not only an ideal incompressibility but also a substantially incompressibility. As described above, the incompressible fluid may move between the fixed chamber and the variable chamber by the operation of the pump, and the buoyancy of the underwater measuring device may change according to the movement of the incompressible fluid, and the underwater measuring device may move up and down. While the underwater measurement device is moving, the measurement unit may measure and store environmental information such as water depth, water temperature, salinity, and water pressure in the memory, and the stored environmental information may later be transmitted to an external reading device, or may be a satellite communication or repeater. It may be transmitted to an external network server in real time through a communication or the like.

The underwater measuring device can repeatedly move up and down as long as it maintains energy.

Therefore, after completing the data transmission on the water surface can be lowered again and moved to another location through the current, it is also possible to measure the change of environmental information over time by measuring the same location repeatedly.

Underwater measuring device according to the present invention can automatically move up and down, and can obtain the information of the surrounding marine environment during the rise or fall. In addition, by using a geared motor with a large reduction ratio in the pump, it is possible to operate a pump of high pressure while using low power, thereby minimizing power consumption. In fact, the underwater measuring device does not require a rapid rise or fall, so even a low-power motor can perform well, and it is very economical to obtain excellent results without difficulty even in repeated measurement projects for many years.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition to the following embodiments, the embodiments of the present invention may be variously configured. That is, the scope of the present invention is not limited or limited by the following examples.

Example 1

1 and 2 are cross-sectional views of the buoyancy converter according to the first embodiment of the present invention.

1 and 2, the buoyancy converter 100 includes a hard body 110, a soft body 120, an oil 130, and a pump 140. The hard body 110 is made of a hard material such as metal, and has a property of not being deformed by external pressure. Therefore, the interior of the hard body 110 includes a fixed chamber 112 that is not deformed by external pressure.

In general, the hard body 110 is made of stainless steel, but may be made of aluminum subjected to anodized. This is because aluminum has a smaller specific gravity than other metals, and anodized aluminum has a strength similar to that of stainless steel (e.g. STS316). In addition, anodized aluminum is very resistant to seawater corrosion and can therefore be used in harsh marine environments.

The soft body 120 is made of a soft material such as rubber, and has a characteristic that the volume of the variable chamber 122 is changed by an external or internal pressure difference.

The pump 140 is mounted between the hard body 110 and the soft body 120, and the fixed chamber 112 and the variable chamber 122 are connected in a sealed state by the pump 140. The fixed chamber 112 and the variable chamber 122 are filled with oil 130 which is an incompressible fluid, and the oil 130 is moved between the fixed chamber 112 and the variable chamber 122 by the pump 140. There is a number.

As shown in FIG. 1, the buoyancy converter 100 is in a floating state in water. At this time, the gravity W and the initial buoyancy B1 applied to the buoyancy converter 100 remain the same.

When the pump 140 starts to operate and forcibly transfers the oil 130 in the fixed chamber 112 to the variable chamber 122, the oil 130 as an incompressible fluid flows into the soft body 120 while the soft body ( Inflate 120). As the volume of the soft body 120 increases, an additional buoyancy force B2 is formed in addition to the initial buoyancy force B1 of the buoyancy converter 100, and the buoyancy converter 100 rises in water due to the increased buoyancy. .

In order to sink the buoyancy converter 100, the oil 130 is moved in reverse.

When the pump 140 operates to forcibly transfer the oil 130 in the variable chamber 122 to the fixed chamber 112, the oil 130 in the variable chamber 122 is reduced and the volume of the soft body 120 is also reduced. Decreases. As the volume of the soft body 120 decreases, the buoyancy of the buoyancy converter 100 is also reduced. As a result, the buoyancy converter 100 is lowered in water.

Through this process, the buoyancy converter 100 can move up and down in the water or other media, and can adjust the buoyancy by the movement of incompressible fluid in the device without material flowing out to the surroundings, such as a measuring device. It can be useful in the case of requiring precise movement without affecting. In addition, there is an advantage that can move up and down infinity as long as energy is provided.

Example 2

3 and 4 are cross-sectional views of the buoyancy converter according to a second embodiment of the present invention.

3 and 4, the buoyancy converter 200 includes a housing 205, a hard body 210, a bladder 220, an oil 230, and a pump 240. The housing 205 includes a hard body 210 and a pump 240, and the bladder 220 is exposed to the outside of the housing 205.

In addition, the oil 230 changes the volume of the bladder 220 while moving between the hard body 210 and the bladder 220, and uses the buoyancy change device using the buoyancy change according to the volume change in the bladder 220. 200 can move up and down underwater.

In detail, the housing 205 and the hard body 210 are made of a hard material such as metal, and have a property of not being deformed by external pressure. The hard body 210 is mounted inside the housing 205, and the housing 205 may primarily protect the hard body 210 and the pump 240 to prevent water from penetrating by water pressure. The interior of the rigid body 210 includes a fixed chamber 212 that is not deformed by external pressure. In general, the hard body 210 is made of stainless steel or the like. The housing 205 is generally made of stainless steel, but may also be made of anodized aluminum. This is because aluminum has a smaller specific gravity than other metals, and anodized aluminum not only has a similar strength as stainless steel (e.g. STS316) but also has a very strong resistance to seawater corrosion.

Bladder 220 is made of a soft material that can be deformed and elastic, such as rubber. Therefore, the variable chamber 222 provided inside the bladder 220 may vary in volume due to the pressure difference between the inside and the outside or the amount of oil 230 in the variable chamber 222. In addition, since the bladder 220 is formed in a cylindrical shape and its side is corrugated up and down like bellows, the bladder 220 increases or decreases its volume while varying the height up and down. .

Bladder 220 is mounted to the upper end or lower end of the housing 205, and is connected to the rigid body 210 constituting a part of the buoyancy converter through a connecting pipe. In addition, the bladder 220 is exposed to the outside of the housing 205 and adjusts the buoyancy force applied to the buoyancy converter 200 as it expands or contracts by the amount of oil 230 in the bladder 220. There is a number. Therefore, the buoyancy converter 220 may adjust the amount of oil 230 in the bladder 220 by using the pump 240, and up and down in the water by using the buoyancy varying corresponding to the amount of oil 230. I can move it.

To this end, the pump 240 according to the present embodiment includes a piston 242 and a moving member 250 for transporting the piston 242 reciprocating while maintaining a sealed state in the fixed chamber 212. . To this end, the fixed chamber 212 is formed in a cylinder shape, and the piston 242 is also formed in a circular shape corresponding to the shape of the fixed chamber 212.

The moving member 250 includes a motor 252, a battery 253 for supplying power to the motor 252, and a ball screw 254 that cooperates with the rotation of the motor 252, and the ball screw 254. Includes a nut 255 fixed in the fixed chamber 212, a screw shaft 256 screwed with the nut 255, and a coupling 257 connecting the screw shaft 256 and the piston 242. . A female thread is formed on the inner surface of the hole of the nut 255 corresponding to the male thread of the screw shaft 256. Since the nut 255 and the screw shaft 256 are mutually screwed together, the screw shaft 256 can move axially with respect to the fixed nut 255 while rotating. At the end of the screw shaft 256 is mounted a piston 242 via a coupling 257, the coupling 257 can transmit only axial movement during rotation and axial movement of the screw shaft 256.

The motor 252 is mounted at the other end of the screw shaft 256 to transmit rotation and can move with the screw shaft 256. In particular, when the bladder 220 is expanded to raise the buoyancy converter 200, the center of gravity moves downward because the motor 252 and the screw shaft 256 together with the piston 242 are lowered together. I can do it.

In addition, to expand the bladder 220 in water with high water pressure, the piston 242 must be able to push the oil 230 to a correspondingly large pressure. To this end, the motor 252 has to produce a torque. In the buoyancy converter 200 according to the present embodiment, a geared motor having a large reduction ratio is used to increase the torque of the motor 252. . In addition to this, it is also possible to use a motor with a sufficiently high output, but a motor with a high output is generally not suitable for the buoyancy converter 200 because it is large, heavy and quite expensive. According to this embodiment, a small motor having a large reduction ratio is used. Since the small motor consumes less power, the life of the buoyancy converter can be extended, and the power consumption can be minimized by adjusting variables such as voltage fluctuations, load fluctuations, speed, power, and gear ratio.

The fixed chamber 212 and the variable chamber 222 are filled with the oil 230 which is an incompressible fluid, and the oil 230 moves between the fixed chamber 212 and the variable chamber 222 by the pump 240. There is a number.

As shown in FIG. 3, the buoyancy converter 200 is in a floating state in water. At this time, the gravity W and the initial buoyancy B1 applied to the buoyancy converter 200 remain the same. Then, when the pump 240 starts to operate and forcibly transfers the oil 230 in the fixed chamber 212 to the variable chamber 222, the oil 230, which is an incompressible fluid, flows into the bladder 220. Inflates bladder 220. As the volume of the bladder 220 increases, the buoyancy of the buoyancy converter 200 is increased, and as a result, the buoyancy converter 200 is raised in the water.

On the contrary, in order to sink the buoyancy converter 200, the oil 230 may be moved in reverse. When the pump 240 operates to forcibly transfer the oil 230 in the variable chamber 222 to the fixed chamber 212, the volume of the bladder 220 is reduced while the oil 230 is reduced. As the volume of the bladder 220 decreases, the buoyancy of the buoyancy converter 200 is also reduced. As a result, the buoyancy converter 200 is lowered in water.

Through this process, the buoyancy converter 200 can be moved up and down in water or other medium, and because buoyancy can be adjusted only by the incompressible fluid inside the device without material spilled to the outside, such as a measuring device, It can be usefully used in case of requiring the influence of and precise movement. In addition, there is an advantage that can move up and down infinity as long as energy is provided.

Example 3

5 is a front view of the underwater measurement apparatus according to the third embodiment of the present invention, FIG. 6 is a partial sectional view of the underwater measurement apparatus according to the third embodiment, and FIG. 7 is an exploded view of the underwater measurement apparatus according to the third embodiment. to be.

5 to 7, the underwater measuring device 300 includes a housing 305, a hard body 310, a bladder 320, an oil 330, a pump 340, a measuring unit 360, and a controller. 370, a memory unit 375, and an antenna 380. The housing 305 includes a hard body 310 and a pump 340, and the bladder 320, the measuring unit 360, and the antenna 380 are mounted outside the housing 305 and exposed. In addition, the oil 330 moves between the hard body 310 and the bladder 320 to change the volume of the bladder 320, and uses the buoyancy change according to the volume change of the bladder 320 to underwater measurement apparatus. 300 can move up and down underwater.

In detail, the housing 305 and the rigid body 310 are made of a hard material such as metal, and have a property of not being deformed by external pressure. The hard body 310 is mounted inside the housing 305, and together with the hard body 310, the pump 340, the control unit 370, the memory unit 375, and the battery 353 are also mounted inside the housing 205. do. The housing 305 includes a housing body 306, an upper cap 307, and a lower cap 308, each of which uses a screw connection and an O-ring or the like to insert water into the housing 305. This can be prevented from infiltrating. Thus the housing 305 serves to protect the rigid body 310, the pump 340 and the embedded components. The housing 305 is generally made of stainless steel, but may also be made of aluminum subjected to anodization. Anodized aluminum not only has similar strength to stainless steel (e.g. STS316), but also has a very strong resistance to seawater corrosion and a small specific gravity compared to other metals.

The interior of the rigid body 310 includes a fixed chamber 312 that is not deformed by external and internal pressures. In general, the hard body 310 is made of stainless steel or the like.

The bladder 320 is made of a soft material that is elastic and deformable, such as rubber, and is mounted on the bottom of the lower cap 308 and exposed to the outside. The bladder 320 is connected to the hard body 310 constituting a part of the buoyancy converter through a connector, the connector is a bladder 320 and the hard body 310 through a hole formed in the lower cap 308 ) Can be connected

In addition, the bladder 320 is exposed to the outside of the housing 305, the variable chamber 322 provided inside the bladder 320 is the pressure difference between the inside and outside or the amount of oil 330 in the variable chamber 322 The volume can be changed by. Therefore, the bladder 320 may expand or contract by the amount of the oil 330 in the variable chamber 322, and the buoyancy force applied to the underwater measuring device 300 by using the characteristics of the buoyancy which varies according to the volume change. Can be adjusted. In addition, since the bladder 320 is formed in a cylindrical shape and its side is corrugated up and down like bellows, the bladder 320 increases or decreases its volume while varying the height up and down. .

The pump 340 is mounted in the hard body 310 and controls the amount of oil 330 in the hard body 310 and bladder 320. To this end, the pump 340 includes a piston 342 reciprocating while moving in the fixed chamber 312 and a moving member 350 for transferring the piston 342.

The moving member 350 includes a motor 352, a battery 353 for supplying power to the motor 352, and a ball screw 354 that cooperates with the rotation of the motor 352. By interlocking with the ball screw 354, the piston 342 mounted to the end of the ball screw 354 can be moved.

The battery 353 is a lithium primary battery and has an advantage of being able to supply a stable power with about 88% energy efficiency even in the case of low-power continuous discharge (approximately 16 kW) compared to an alkaline battery of the same amount. The battery 353 is fixed to the lower end of the built-in plate 314 on which the hard body 310 is mounted, and supplies power to the motor 352 and the control unit 370, as well as the center of gravity of the underwater measuring device 300. It can be located in the lower half.

8 is a partial cutaway perspective view for explaining a hard body and a pump of the underwater measurement apparatus according to the third embodiment.

Referring to FIG. 8, the ball screw 354 includes a nut 355 fixed in the fixed chamber 312, a screw shaft 356 screwed with the nut 355, and a screw shaft 356 and piston 342. It includes a coupling 357 for connecting. A female thread is formed in the hole inner surface of the nut 355 corresponding to the male thread of the screw shaft 356. Since the nut 355 and the screw shaft 356 are mutually screwed together, the screw shaft 356 can move axially with respect to the fixed nut 355 while rotating. At the end of the screw shaft 356 is mounted a piston 342 via a coupling 357, the coupling 357 can transmit mainly axial movement mainly during rotation and axial movement of the screw shaft 356. .

The motor 352 is mounted to the other end of the screw shaft 356 to transmit rotation and move with the screw shaft 356. In particular, when the bladder 320 is inflated to raise the underwater measuring device 300, the center of gravity moves downward because the motor 352 and the screw shaft 356 together with the piston 342 descend. I can do it.

In addition, to expand the bladder 320 in water with high water pressure, the piston 342 must be able to push the oil 330 to a correspondingly large pressure. To this end, the motor 352 must produce a large torque, and in the underwater measuring device 300 according to the present embodiment, a geared motor having a large reduction ratio is used to increase the rotational force of the motor 352. do. Since the small gear motor consumes less power, the life of the buoyancy converter can be extended, and the power consumption can be minimized by adjusting variables such as voltage fluctuations, load fluctuations, speed, power, and gear ratio.

The fixed chamber 312 and the variable chamber 322 are filled with the oil 330 which is an incompressible fluid, and the oil 330 can move between the fixed chamber 312 and the variable chamber 322 by the pump 340. have.

In order to protect the bladder 320, which is repeatedly expanded and contracted by the oil 330, a protective guard 390 is mounted at the lower end of the housing 305. The protective guard 390 is formed in a cylindrical shape to cover the side of the bladder 320, it is possible to prevent the bladder 320 from colliding with an external object.

The measuring unit 360 and the antenna 380 are mounted to the upper cap 307 of the housing 305 opposite the protective guard 390. The measuring unit 360 may include a depth measuring instrument, a water temperature measuring instrument, a salinity measuring instrument, a water pressure measuring instrument, and the like, and may measure information about the surrounding environment in the ocean. The measurement by the measuring unit 360 may be performed at a specific depth, or may be performed at regular intervals during ascending or descending. In the present exemplary embodiment, the measuring unit 360 is mainly installed in the upper cap 307, but each measuring instrument such as a depth measuring instrument and a water temperature measuring instrument may be mounted at different positions, and the housing 305 body 306 and the lower cap ( 308) may be mounted in various positions.

The antenna 380 is also mounted on top of the upper cap 307, and can transmit and receive necessary data with an external satellite or repeater as a wireless transceiver. In this embodiment, the antenna 380 may transmit and receive a frequency in a range of about 120 to 160 MHz with a length of about 80 to 120 cm. The environmental information measured by the underwater measurement device 300 is stored in the memory 375 once, and after the underwater measurement device 300 is raised to the surface, the stored information may be transmitted to the outside through the antenna 380.

The underwater measuring device 300 should be able to maintain a substantially vertical posture on the surface of the water. For this purpose, the damping disk 395 is mounted on the upper end of the housing 305. Since the damping disk 395 moves up and down with the surface of the water on the surface of the wave, the damping disk 395 is kept parallel to the surface of the water, and the housing 305 of the underwater measuring device 300 maintains a state perpendicular to the surface of the water. Information can be exchanged smoothly with satellites.

9 is a partially enlarged cross-sectional view for explaining a process of raising the underwater measuring apparatus according to the third embodiment.

Referring to FIG. 9, the underwater measuring device 300 is in a floating state in water, and gravity and initial buoyancy on the underwater measuring device 300 are maintained the same. Then, the motor 352 starts operation to rotate the screw shaft 356 and the screw shaft 356 and the piston 342 move downward in correspondence with the nut 355. As the piston 342 moves down, the oil 330 in the fixed chamber 312 moves to the bladder 320 through the connecting pipe, and the bladder 320 expands. As the volume of the bladder 320 increases, the buoyancy of the underwater measurement device 300 increases, and as a result, the underwater measurement device 300 rises in the water.

10 is a partially enlarged cross-sectional view for explaining a process of descending the underwater measuring apparatus according to the third embodiment.

Referring to FIG. 10, the motor 352 starts to run in reverse and rotates the screw shaft 356 in the opposite direction, such that the screw shaft 356 and the piston 342 move upwards corresponding to the nut 355. . As the piston 342 moves up, the oil 330 in the variable chamber 322 moves through the connecting tube into the stationary chamber 312, and the bladder 320 contracts. As the volume of the bladder 320 decreases, the buoyancy of the underwater measuring device 300 decreases, and as a result, the underwater measuring device 300 descends in the water.

Through this process, the underwater measuring device 300 can move up and down in the water or other medium, and can adjust the buoyancy by the movement of the incompressible fluid inside the device without material flowing to the outside. It can be useful in the case of requiring precise movement without affecting. In addition, there is an advantage that can move up and down infinity as long as energy is provided.

11 is a configuration diagram for explaining the operation of the underwater measurement apparatus according to the third embodiment.

The set target of the underwater measuring device 300 is drifted along the current at least 7 days (default = 10 days) at a depth of about 500m, and then measures and stores the water temperature, water pressure, salinity, etc. according to the depth while rising to the surface, The measured information is transmitted to an external satellite along with the GPS (Global Positioning System) location information. Then, the device enters the power save mode through the surface standby mode, the fall mode, and the depth control mode, and drifts until a predetermined time passes while consuming about 16 mA of current.

Here, when the power saving mode period is about 7 days, the current consumed is 2.69mA, which is about 5.8W when operated 150 times with an internal voltage of about 14.4V DC. In addition, considering the observation and transmission time of the underwater measurement device up to 1 day, it can operate for about 3.3 years, and the underwater drifting period is about 2.9 years, and the power save mode corresponds to 88% of the total cycle.

Referring to FIG. 11, the measuring unit 360 includes a water depth measuring device 361, a water temperature measuring device 362, a salinity measuring device 363, and the information measured by the measuring devices is stored in the memory 375. When the underwater measurement device 300 reaches the surface of the water, the controller 370 transmits the information stored in the memory 375 to the outside through the antenna 380, and the position information obtained through the position sensor is also stored in the memory ( 375) and transmit to the outside. When the work on the water surface is completed, the control unit 370 may operate the motor 352 of the pump 340, and the motor 352 rotates in the opposite direction to submerge the underwater measuring device 300 again underwater. There is a number.

The underwater measuring device can measure the marine environment information according to the depth while moving the ocean automatically by the programmed process, and can transmit the environmental information collected according to the depth to the analysis subject located at a long distance through the satellite or external repeater. have.

In addition, the underwater measuring device can collect a large amount of environmental information over a long period of time because it uses less power, and the buoyancy converter used here can move stably up and down underwater without vibration or noise, so precise measurement It is possible.

In addition, it is possible to provide resistance to seawater by using anodized aluminum, and to maintain a stable posture in water and on the water by using a damping disc.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (16)

A rigid body including a fixed chamber and having a constant volume; A soft body including a variable chamber and having a varying volume; An incompressible fluid having substantially incompressibility and moving between the fixed chamber and the variable chamber; And And a pump for forcibly transferring the incompressible fluid. The method of claim 1, And the pump is sealably mounted to the fixed chamber and includes a piston moving along the fixed chamber and a piston moving member for moving the piston relative to the fixed chamber. The method of claim 2, The moving member includes a ball screw for supporting the piston, a motor for driving the ball screw, and a battery for supplying power to the motor. The method of claim 3, The ball screw includes a nut portion fixed in the fixing chamber, a screw shaft coupled with the nut portion and a screw, and a coupling connecting the screw shaft and the piston, wherein the motor moves together with the screw shaft and generates rotational force. Buoyancy converter characterized in that the transmission. The method of claim 1, The flexible body buoyancy converter characterized in that it comprises a bladder composed of a soft material. The method of claim 1, Buoyancy converter is mounted to the end of the rigid body comprising a protective guard of the hollow to protect the soft body. housing; A rigid body including a fixed chamber within said housing and having a constant volume; A bladder having a varying volume and including a variable chamber outside the housing; An incompressible fluid having substantially incompressibility and moving between the fixed chamber and the variable chamber; A pump for moving said incompressible fluid; A measuring unit mounted on the housing and measuring environmental information of the surroundings; And And a memory unit for storing the environment information obtained from the measuring unit. The method of claim 7, wherein And the pump is sealably mounted to the fixed chamber and includes a piston moving along the fixed chamber and a piston moving member for moving the piston relative to the fixed chamber. The method of claim 8, The moving member includes a ball screw for supporting the piston, a motor for driving the ball screw, and a battery for supplying power to the motor. The method of claim 9, The ball screw includes a nut portion fixed in the fixing chamber, a screw shaft coupled with the nut portion and a screw, and a coupling connecting the screw shaft and the piston, wherein the motor moves together with the screw shaft and generates rotational force. Underwater measuring device characterized in that the transmission. The method of claim 7, wherein The bladder is composed of a soft material, the underwater measuring device, characterized in that formed in a corrugated form such as bellows. The method of claim 7, wherein And a hollow protective guard mounted on an end of the housing to protect the bladder. The method of claim 7, wherein Underwater measuring device further comprises a wireless transmission and reception unit for wirelessly transmitting and receiving the environment information stored in the memory. The method of claim 13, The wireless transceiver includes an antenna mounted to an upper end of the housing, and the upper end of the housing is a damping disk, characterized in that mounted vertically to the housing. The method of claim 7, wherein The measuring unit is at least one of a depth measuring instrument, a water temperature measuring instrument, salinity measuring instrument, characterized in that it comprises a water pressure measuring device. The method of claim 7, wherein The housing is an underwater measuring device, characterized in that consisting of anodized aluminum.

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