70 results about "Deep-sea exploration" patented technology

The invention aims to provide a seven-functional underwater mechanical arm system. The seven-functional underwater mechanical arm system comprises a paw, a wrist, a first joint, a second joint, a third joint, a fourth joint and a fifth joint, wherein the first joint comprises a base and a first hydraulic cylinder; the second joint comprises a first connecting rod and a second hydraulic cylinder; the third joint comprises a second connecting rod and a third hydraulic cylinder; the fourth joint comprises a third connecting rod and a fourth hydraulic cylinder; the fifth joint comprises a fourth connecting rod and a fifth hydraulic cylinder; the paw comprises a front wrist end, a first finger end, a second finger end, a first main connecting rod, a second main connecting rod, a first auxiliary connecting rod, a second auxiliary connecting rod and a sixth hydraulic cylinder; the wrist comprises a connecting piece, a rotary motor and a fifth connecting rod. The seven-functional underwater mechanical arm system is simple and compact in structure and high in loading capacity, has seven degrees of freedom, and has higher applicability to deep sea exploration and corresponding seabed operation; the mechanical paw is detachable and replaceable.

Provided is a full-sea-depth brushless direct-current electric propeller with a rotary cartridge mechanical seal device in the technical field of deep sea exploration. The full-sea-depth brushless direct-current electric propeller comprises the rotary cartridge mechanical seal device, a propeller shell, a guide pipe paddle, a brushless direct-current motor and a rotary transformer. The rotary cartridge mechanical seal device and a transmission shaft of the brushless direct-current motor are in axial sealing connection, the rotary transformer collects the rotating speed of the transmission shaft, and outputs rotating speed information through a transmission line of an electrohydraulic interface, the propeller shell and a stator of the brushless direct-current motor are assembled through interference fit, and the front end of the propeller shell and the guide pipe paddle are connected through a connecting support fixedly connected with a transitional flange. The rotary cartridge mechanical seal device is adopted, sealing materials are high in hardness and good in wear resisting performance, high temperature resisting performance and corrosion resisting performance, and the sealing structure is novel in structure, simple and reasonable in combination, small in size and good in sealing effect, so that the propeller has the work capacity within the full-sea-depth range of 0 m to 11,000 m.

The invention discloses a four-freedom-degree three-finger operating parallel mechanism which comprises a mechanism base, a movable platform, an SP-type linear driving branch and three UPUR-type finger driving branches of a completely same structure, wherein the SP-type linear driving branch and the three UPUR-type finger driving branches are connected with the mechanism base and the movable platform. One end of the SP-type linear driving branch is fixedly connected with the movable platform through a sliding pair, the other end of the SP-type linear driving branch is connected with the mechanism base through a ball pair, the three finger driving branches of the same structure are evenly arranged in a circumferential mode between the mechanism base and the movable platform, one end of a linear driving rod of each finger driving branch is connected with the mechanism base through a universal pair, the other end of the linear driving rod of each finger driving branch is connected with one end of a finger connecting rod through a universal pair, the middles of the finger connecting rods are connected with the movable platform through revolute pairs, and the other ends of the finger connecting rods are free ends. The four-freedom-degree three-finger operating parallel mechanism is simple in structure, large in three-finger pose work space, good in flexibility and large in operating force, and has the wide application prospects in the aspects such as high-end numerical control operator clamping and forging, medical treatment surgeries, outer space and deep sea exploration, military reconnaissance and rescue and dangerous article or pipe dirt removal.

The invention discloses a parallel multi-manipulator mechanism. The parallel multi-manipulator mechanism comprises an SP-type shaft sleeve set, a machine base, a movable table, four SPS-type driving branches, inner and outer flexible finger mechanisms and three screw drivers. The SP-type shaft sleeve set comprises a core tube, an inner sleeve, a fixed sleeve, an outer sleeve and a ball sleeve. The ball sleeve is connected with a ball pair of the machine base. One end of the fixed sleeve is vertically and fixedly connected with the movable table. The fixed sleeve is further connected with the inner sleeve and the outer sleeve in the radial direction in a sliding mode. The three screw drivers drive the core tube, the inner sleeve and the outer sleeve to be stretched and retracted. The fixed sleeve, the inner sleeve and the outer sleeve form inner and outer manipulator mechanisms which are circumferentially and evenly distributed in a staggered mode through connecting rods and under-actuated branches. One end of the core tube can move along with operation tools like scalpels, hose sight glasses, syringe needles and tooth drilling and polishing utensils to absorb and convey fluid. The long and thin SP-type shaft sleeve set can stretch into a narrow space along with the inner and outer manipulator mechanisms to achieve alternate grabbing and spatial expansion, and the core tube is used for expanding life channels. The parallel multi-manipulator mechanism is simple and compact in structure and suitable for idle station maintenance, deep sea exploration, medical operations and disaster area relief.

A robot-type deeply diving apparatus able to be submerged on sea bed and automatically return back is composed of a container with opening, a guide tube with a valve for exhausting the air from said container before it is dived, at least one plat form for installing instrument on it, an instrument carrier under said container, and a cable connected between said container and instrument carrier. It can be used for deep sea exploration.

The present invention is one kind of elevating rail car for marine ship to setting deep sea exploration equipment on. The elevating rail car includes one fixed frame, wheels to fit the rail, one travel driving unit, one elevating seat on one elevating unit and one turnover preventing unit below the fixed frame. The fixed frame and the elevating seat have U-shaped structures corresponding to each other. The elevating rail may be moved horizontally and vertically, and has convenient use, easy maintenance, high stability and high safety.

Systems for tethering an underwater vehicles using a low strength optical fiber tether. The tether system includes, a mechanical fuse that prevents a high load from acting on and severing the tether that is attached to the underwater vehicle, thus allowing use of far smaller cables than typically used. Upon separation of the fuse, a cable payout system pays out an optical fiber that keeps the underwater vehicle, typically a robotic craft, in communication with the surface vessel. The relatively light weight glass fiber may be reinforced and extended to lengths greater than 40 km allowing deep-sea exploration at depths up to 11,000 m.

A free vehicle suitable to serve as a platform to carry a variety of equipment to the ocean floor, actuate devices at the floor and at intermediate points on the way to and returning from the ocean floor is described. The free vehicle includes standardized power, control electronics, navigation equipment and mechanical release mechanisms that can be used in conjunction with custom experiments. Exemplary experiments include sensors and sampling equipment used for deep-sea exploration. The free vehicle platform provides for scalable designs to meet scientific needs and surface vessel constraints.

A deep-sea exploration multi-joint underwater robot system and a spherical glass pressure housing including a titanium band are provided. The system includes a multi-joint underwater robot having a multiple of first and second pressure housings withstanding deep-sea pressure and shielding built-in equipment from seawater and performing close precision seabed exploration obtaining marine research data to transmit underwater status data, a mothership receiving and storing marine research and underwater status data and monitoring and controlling moving directions of multi-joint underwater robot, and a depressor having third pressure housing, linked with mothership by primary cable and multi-joint underwater robot by secondary cable, and preventing transmission of primary cable water resistance to multi-joint underwater robot, wherein first spherical pressure housings are mounted on robot body frame, second cylindrical pressure housings are mounted between left and right legs, and the third cylindrical pressure housing is mounted inside the depressor platform.

The invention provides a four-freedom-degree 3SPRR and SP type hybrid flexible hand for robots, which comprises a machine base, a movable platform, connecting rods, an SP type middle linear drive branch and three SPRR type flexible finger-containing drive branches which are of the same structure; the SP type branch is arranged in the center of the movable platform and the machine base, the lower ends of swing rods in the SPRR type branches and the movable platform are connected with first through holes formed in the inner sides of lower frames of arm rests, and linear electric cylinders are connected with second through holes formed in the outer sides of the lower frames of the arm rests and the machine base in a ball pair mode; the upper ends of the swing rods are connected with the lower ends of the fingers, the upper ends of the fingers serve as freedom ends, one end of each guide column is perpendicularly and fixedly connected with the middle of the corresponding swing rod, and the other end of each guide column penetrates through the frame of the corresponding arm rest to serve as a freedom end; the guide columns are sleeved with springs, and the two ends of springs abut against the middles of the swing rods and the inner walls of the frames of the arm rests respectively. The four-freedom-degree 3SPRR and SP type hybrid flexible hand for robots is simple in structure, large in finger posture work space, good in flexibility and capable of flexibly operating gripping and being used in space and deep-sea exploration, forging operation, rescue, medical operations and massage.

The invention discloses an offshore drilling marine riser resistant to deepwater conquassation and a manufacturing method of the offshore drilling marine riser. A pipe material comprises, by mass, 0.04-0.08% of C, 0.10-0.30% of Si, 1.40-1.80% of Mn, 0-0.015% of P, 0-0.002% of S, 0.10-0.50% of Ni, 0.10-0.35% of Cr, 0.10-0.40% of Cu, 0.05-0.35% of Mo, 0.005-0.06% of Nb, 0.01-0.06% of V, 0.005-0.025% of Ti, 0.02-0.06% of Al, 0.002-0.006% of N, 0-0.0005% of B, 0.0015-0.0035% of Ca, and the balance Fe and inevitable impurities, wherein Ti / N equals to 1.5-4.0, and Nb+V+Ti<=0.15. The welding crack sensibility index Pcm is smaller than or equal to 0.19. A pipe material structure is composed of ferrite and bainite, and the fraction of the bainite is larger than 80%. According to the manufacturing method, the submerged arc welding technology in an internal and external multi-wire mode is adopted, the steel pipe total length expanding technology with the expanding ratio being 0.80-1.50% is adopted, a steel pipe is high in strength and toughness and excellent in compressive strength and corrosion resistance, and the offshore drilling marine riser is suitable for deep sea exploration and drilling operation under the complex service condition with the water depth being 1500 m or above.

The invention discloses a self-adaptive seabed lander based on load-rejectable foot pads, and belongs to the technical field of deep sea exploration. The seabed lander comprises a buoyancy frame, a support mechanism and a release mechanism. The support mechanism comprises a plurality of telescopic support legs, a leveling control system and the load-rejectable foot pads; the telescopic support legs are symmetrically arranged at the bottom edge of the buoyancy frame; the leveling control system comprises an attitude sensor module and a control host, the attitude sensor module acquires externalattitude data of the seabed lander and transmits the data to the control host, and the control host controls and adjusts the lengths of the telescopic support legs to adjust the seabed lander horizontal; the load-rejectable foot pads as counterweights are arranged at the bottom ends of the telescopic support legs respectively. The release mechanism comprises acoustic releasers connected with the load-rejectable foot pads. The self-adaptive seabed lander has the advantages that the attitude of the lander during landing is adjusted in real time through the telescopic support legs to prevent thelander from falling down, and the lander adapts to various complicated seabed environments; the load-rejectable foot pads can be used as both ballasts and landing supports.

The invention relates to a robot frogman and a palm assembly, and belongs to the technical field of robots. The palm assembly comprises a palm base and a plurality of fingers, wherein the each fingercomprises joints, knuckles and joint corner driving mechanisms which are sequentially arranged through connection, the each joint corner driving mechanism comprises a corresponding shape memory alloywire used for driving corresponding two adjacent knuckles to rotate forwards and reversely, the each shape memory alloy wire comprises two or more shape memory alloy wire sections, the adjacent ends of the two corresponding shape memory alloy wire sections of the each shape memory alloy wire are fixedly connected through a corresponding sliding block, and the sliding blocks on the shape memory alloy wires are installed in the palm base and / or the knuckles in a sliding mode. On the basis of the palm assembly with an improved structure, the effective length of the alloy wires can be effectivelyshortened while the knuckle action response speed is increased, and the palm assembly can be widely applied to the technical fields of robots, deep sea exploration and the like.

The present invention involves inhibiting clathrate hydrate formation by adding ionic liquids that are soluble in water. Properly tailored ionic liquids shift the hydrate-aqueous liquid-vapor equilibrium curve to a lower temperature and, at the same time, retard the hydrate formation by slowing down the hydrate nucleation rate. This dual function makes this type of inhibitors perform more effectively. The present invention is useful for the production, processing, and transportation in oil and gas industry, especially for deep-sea exploration and production where the operating temperature and pressure become in favor of hydrate formation.

The invention discloses worm gear transmission based cable winding equipment for deep sea exploration. The equipment comprises a bottom plate and a box body, a first sliding groove is formed in the upper surface of the bottom plate, a first sliding block is slidably mounted in the first sliding groove, a first supporting plate is fixedly connected to the upper surface of the bottom plate, and an air cylinder is fixedly mounted at one side of the first supporting plate; and the equipment is provided with the air cylinder, the air cylinder pushes a second supporting plate, a first sliding block drives the second supporting plate to slide rightwards in a first sliding groove, a transmission roller at the right side is separated from the interior of a wire spool, the next wire spool is replaced, the air cylinder drives the second supporting plate to slide leftwards, the transmission roller at the right side is inserted into the wire spool again, and a positioning groove is clamped with a positioning key. By means of the relation between a first belt pulley and a second belt pulley, a motor drives the transmission roller to rotate, and then a cable is wound, so that the wire spool can be disassembled conveniently and rapidly, a large amount of labor force is saved, and the working efficiency is improved.

Catastrophic events involving oceanic petroleum oil-wells are threats to ventures in this intriguing avenue. The instant inventions of exemplary models working in synchrony are directed to emergency responsive, reparative, and preventive measures to weather through the adversities of such deep sea explorations, thereby restoring / preserving the functioning of the well structure, involving—(a) An incomplete oil-well with disrupted ‘production casing’, it's dimensions sealed by an ‘Emergency Pneumatic Sealing Ensemble’, further incorporating an oil-outlet,(b) A completed oil-well with fractured ‘production tubing’, it's dimensions sealed by a pneumatic ‘Emergency Plugging Oil-Conduit’,(c) Reparative measures of cement structuring an ‘Emergency Isolation platform’ incorporating functional well-head structures,(d) Methods of designing a ‘Detachable Island-Rig’ on permanent base,(e) A simple yet eminently functional model of ‘Oil-Gas Separator’, structured on the ocean grounds about the well, designed to separate gas from semisolid crude, so preventing entrainment of inflammable gases.

The invention discloses a deepwater carrying cable. The cable mainly solves the technical problems of low tensile strength, large volume, poor flexibility and the like of the conventional common cable. The technical scheme adopts the key points that: more than three conductive core wires form a core cable, the center of the core cable is provided with a water-repellent and tensile core rope, and water-repellent and tensile ropes are filled among the conductive core wires; one or more than two circles of conductive core wire layers composed of more than five conductive core wires in circumferential distribution are arranged around the core cable; and a water-repellent and tensile layer and a sheath layer are sequentially arranged from inside to outside of the periphery of the conductive core wire layer. The cable is mainly suitable for 250 V and below deep-water carrying environment with higher requirements on chemical resistance, fire resistance and safe reliability, serves as a power cable of an electrical system and a wire for installing and connecting electrical equipment and instruments, and can be widely applied to the equipment for deep sea exploration, sea oil logging, national defense weaponry, various vehicle-mounted systems and the like.

The invention relates to an ultrasonic ranging-based CPS embedded underwater sensor positioning device, belonging to the technical field of ocean control equipment. The ultrasonic ranging-based CPS embedded underwater sensor positioning device comprises an ultrasonic ranging sensor, a measurement circuit, a deviation gain circuit, an A / D conversion circuit, a power amplification circuit, a single-chip microcomputer control module, an LED lamp, an air pump, a float switch, an air intake valve, a GPS module and a battery pack. The ultrasonic ranging sensor is connected with the measurement circuit, which is connected with the deviation gain circuit. The deviation gain circuit is connected with the A / D conversion circuit, which is connected with the power amplification circuit. The power amplification circuit is connected with the single-chip microcomputer control module. With a simple structure, the ultrasonic ranging-based CPS embedded underwater sensor positioning device of the invention is flexible to operate, is low in cost and is environment-friendly and durable. Data are updated by employing GPS remote wireless transmission, thereby realizing accurate positioning of objects and achieving important significance for deep sea exploration and archaeological excavation.

The invention discloses a serial-parallel operation manipulator device containing seven-bar flexible force-sensing fingers. The serial-parallel operation manipulator device comprises a parallel mechanism and seven-bar flexible force-sensing finger mechanisms. The parallel mechanism includes a machine seat, a moving table, a planar dual-drive branch mechanism and a linear electric cylinder, whereinthe planar dual-drive branch mechanism comprises an upper beam, a lower beam and two RPR type electric cylinders, the two RPR type electric cylinders are connected with the upper beam and the lower beam, and the upper beam and the lower beam are rotatably connected with the machine seat and the moving table separately; and the linear electric cylinder is connected with the machine seat and the moving table through a universal pair and a rotating pair correspondingly. The seven-bar flexible finger mechanisms include finger bar, electric cylinders, three-pair bars, force measuring bars, pull bars, springs and finger seats. The finger bars and the finger seats are rotatably connected to the two ends of the electric cylinders, the third-pair bars are rotatably connected with the finger bars,the force measuring bars and the pull bars, the pull bars are connected with sleeves of the finger seats through moving pairs, the two ends of the springs abuts against protruding circular truncated cones of the pull bars and sleeve hole bosses of the finger seats, and the finger seats are rotatably connected to the other ends of the force measuring bars; and the finger seats are fixedly connectedwith the moving table and distributed on the circumference of the moving table. The serial-parallel operation manipulator device containing the seven-bar flexible force-sensing finger is used for deep-sea exploration, rescue, processing and surgical operations.

The invention relates to a pump control type semi-driving heave compensation system and a working method thereof and belongs to the field of deep sea exploration and operation. The system comprises acomposite hydraulic cylinder, a hydraulic power unit and a control unit. A three-cavity combined type hydraulic cylinder is adopted as the composite hydraulic cylinder. The composite hydraulic cylinder comprises a cavity C, a cavity A and a gas cavity B. The hydraulic powder unit comprises a bidirectional variable pump and a motor. One way of the bidirectional variable pump communicates with the cavity C through a first oil way by means of an oil opening A, another way communicates with the cavity A through a second oil way by means of an oil opening B, and the third way is connected with a low-pressure pump. The control unit comprises a compensation controller, a first pressure sensor, a second pressure sensor, a displacement sensor and a rotating speed sensor, wherein the first pressuresensor, the second pressure sensor, the displacement sensor and the rotating speed sensor are connected with the compensation controller. The bidirectional variable pump is also connected with the compensation controller which is further connected with a motion reference unit. The cavity B is connected with an adjusting gas bottle and a working gas bottle. According to the system, the system is designed by utilizing the high-pressure regeneration property of energy in the wave compensation process, and the compensation range is enlarged.

The invention provides a submarine hydrothermal fluid thermoelectric power generation device, which comprises an evaporator for heating a liquid working medium into superheated steam, a generator for converting mechanical energy into electric energy, an expansion machine for acting to drive the generator to generate electricity by using superheated steam expansion, a circulating pump for driving the working medium to circulate, and a condenser for condensing working medium steam exhaust after acting through expansion into a fluid, wherein the expansion mechanism is connected with an input end of the generator and an inlet of the expansion machine communicates with an outlet of the evaporator; an outlet of the circulating pump communicates with the inlet of the evaporator; the inlet of the condenser communicates with the outlet of the expansion machine and the outlet of the condenser communicates with the inlet of the circulating pump. The hydrothermal fluid is taken as a heat source, surrounding seawater is taken as a cold source, and electric energy is provided for deep-sea exploration and operation equipment by adopting the mode of acting through closed thermal cycle-driven expansion, so that a lot of temperature difference energy of the deep-sea floor hydrothermal fluid can be effectively utilized.

The invention discloses a plate pressure detection device capable of being uniformly pressed and used for deep sea exploration. The device comprises a supporting seat, a shell, openings and pressure monitors. The shell is fixedly connected to the upper portion of the supporting seat, the openings are formed in the front side and the rear side of the shell, the pressure monitors are fixedly installed on the left side and the right side of the interior of the shell, and the pressure monitors are fixedly installed on the left side and the right side of the interior of the shell. A hydraulic rod is fixedly installed at the top end of the shell, sliding grooves are formed in the left side and the right side of the top end of the shell, connecting plates are fixedly installed on the left side and the right side of the middle of the shell, movable grooves and through openings are formed in the front surface and the rear surface of the shell, and the movable grooves communicate with the through openings. Connecting plates are fixedly arranged on the left side and the right side of the shell correspondingly, and connecting shafts are arranged on the front side and the rear side of the lower portion of the supporting base correspondingly. According to the plate pressure detection device capable of being uniformly pressed and used for deep sea detection, pressure testing can be carried out on the whole plate through the hollow structure in the shell, uniform pressing can be carried out, and the testing accuracy is guaranteed.

The invention discloses a linear motor driving type plunger pump provided with multiple motion units. When a servo controller drives a linear motor to reciprocate in a special motion plan, plungers at one end are in water absorption working conditions, a suction valve in a corresponding integrated flow distribution valve is opened, and fluid is sucked into working medium from a total water suction pipe of a system through a flow guiding channel inside a cylinder body; and plungers at the other end are in a water discharging working condition, a delivery valve in the corresponding integrated flow distribution valve is opened, and the fluid is discharged from the working medium from a total water outlet pipe of the system through the flow guiding channel inside the cylinder body. When multiple linear motor motion units are in coordinated operation, the linear motor motion units respectively operate by being staggered for 90 degrees in phase difference according to a triangular wave motion curve, so that formed combined flow of the system can reach a stable value. The linear motor driving type plunger pump system is applicable to a hydraulic system with seawater, freshwater, mineral oil and the like as a working medium and has a broad application prospect in the fields of naval vessels, deep sea exploration and the like.

The invention discloses an EHA drive plunger pump and a control method thereof. The EHA driving plunger pump is composed of cylinder bodies, integrated flow distribution valves, a water outlet main pipe, oil distribution boxes, oil circuit blocks, servo motors, a base, a water inlet main pipe, cylinder barrels, pump set plungers, hydraulic cylinders, a supporting plate, hydraulic cylinder plungerrods, rod end ball bearings and the like. The EHA driving plunger pump adopts EHA as a driving device, the movement of the hydraulic cylinders are controlled through the bidirectional hydraulic pumpsso as to drive the pump set plungers to move, and the function of water suction and drainage is realized; through servo control, the positive rotation, reverse rotation and speed regulation operationof the motor can be controlled. When the pump set plungers reciprocate in a specific motion planning mode, one ends of plungers are in a water absorption working condition, the suction valve in the corresponding integrated flow distribution valves are opened, and the fluid is sucked into the working medium from the system main water suction pipe through flow guide channels in the cylinder bodies.According to the EHA drive plunger pump and the control method, the complex working condition of the ship pump can be met, and the application prospect of the EHA driving plunger pump system in the fields of naval vessels, deep sea exploration and the like is greatly improved.

The invention discloses an extremely dark light object detection method based on a RAW image, which is used for low-weak light images collected by a conventional image sensor. The method comprises the steps: establishing a dark light synthesis pipeline according to a physical imaging process, constructing a high-quality dark light object detection simulation data set based on existing normal light object detection data set resources, and training an accurate dark light object detection network. According to the method, extremely-dark light object detection based on existing common image acquisition equipment can be completed with high quality, high-efficiency and high-precision extremely-dark light object detection is realized while acquired images and human resources used for constructing an extremely-dark light object detection data set are remarkably saved, the detection precision is improved, the application scene of an object detector is expanded, and the bottleneck in the object detection field is broken. The invention can be used in multiple fields of deep space exploration, deep sea exploration, biomedicine, near-earth exploration and the like.

The invention discloses a breathing air guide composite cable. An SYV75-3-41 radio frequency cable, six groups of signal line shielding wire cores and four power line insulating wire cores are comprehensively cabled by taking an air guide pipe as a center to form a cable core; a non-woven fabric belting isolation layer and an aramid yarn braiding enhancement layer are sequentially arranged outsidethe cable core, and finally irradiation chlorosulfonated polyethylene is extruded to serve as an outer sheath. The invention also discloses a production method of the cable. The cable acts on the connection of a long-tube respirator, has the comprehensive performance of integrating breathing air guide, electric power and data communication transmission, eliminates the need of an operator to carrya heavy oxygen bottle, and is suitable for a long-tube respirator air guide connection cable for long-time operation in tunnels, pipelines and deep wells, deep sea exploration and salvage and other oxygen-deficient environments such as dense smoke and dust.

The invention provides a manufacturing method of a single-optical-fiber cascade type temperature-depth-salinity sensor for deep sea exploration. According to the single-optical-fiber cascade type temperature-depth-salinity sensor, three all-quartz sensing units are manufactured and cascaded on the same optical fiber by utilizing an electric arc welding and hydrogen-oxygen catalytic bonding technology. Due to the introduction of a plurality of optical fiber micro self-focusing lenses, under the condition that the optical transmission of the cascaded FP interferometer is not influenced, the sensitivity and the resolution can be improved by greatly increasing the cavity length of the two cascaded FP so as to obtain better sensing performance. According to the invention, an integral all-quartz structure in a complex deep sea detection environment is realized, all sensing elements are cascaded on a single optical fiber, and the optical fiber sensor has the advantages of small size, compact structure, high pressure resistance, corrosion resistance, suitability for long-distance measurement and the like, is simple in manufacturing process, good in repeatability and easy to manufacture and mass-produce, and is expected to become a candidate for deep sea exploration and research in the future.