KR0126897Y1 - Towed array sonar system with array stablization module - Google Patents

Abstract

The present invention has a sensor unit for underwater sound wave detection consisting of a vibration isolation module, a signal transmission module, an acoustic module and an array stabilization module, a towing cable connecting the sensor unit to a towing vessel, and a tail joined to the opposite side of the cable of the sensor unit. In the towing type sonar detector configured as a pro, the array stabilization unit of the array stabilization module is joined to a connector coupled to both ends of the cylindrical tube body, the tension member extending in the longitudinal direction in the cylindrical tube body, constant with each other A plurality of shape holding members fitted to the tension member while being spaced apart, a depth sensor fitted to the tension member at a position immediately next to the front connector among the connectors, and inserted into the tension member between the depth sensor and the foremost shape holding member; Heading sensor, installed in the rear connector It relates to a sonar device having an array stabilization module that is composed of a temperature sensor.

Description

Towed Sonar Detector with Array Stabilization Module

1 is a view schematically showing the state of use of the sonar embodying the present invention.

Figure 2 is a schematic cross-sectional view cut along the central axis of the array stabilization module according to an embodiment of the present invention.

3 is a schematic cross-sectional view taken along line A-A of FIG. 3 for a spacer portion of an array stabilization module according to an embodiment of the present invention.

4 is a right sectional view of the left side of the spacer of the array stabilization module according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: sonar 2: sensor

3: cable 7: winch

9: vibration isolation module 11: signal transmission module

13: Sound Module 15: Array Stabilization Module

17: tail rope 19,21: connector assembly

20: cylindrical tube body 23: array stabilization unit

25: tension member 27: shape holding member

27a, b: left and right sides of the shape holding member 29: depth sensor

31: heading sensor 33: temperature sensor

35, 37: through hole 39: shape retaining member body

41: wiring hole 43: wing

45: wiring seat 49, 51: ring groove

The present invention relates to a towing type sonar detection device having an array stabilization module, and more particularly, vibration of a towing cable due to tensile force and fluid resistance generated during towing of the sensor part for sonar detection. The present invention relates to a towed array sonar system (TASS) having an array stabilization module that effectively removes it to the outer part of the sensor even if it acts on the sensor part without being fully buffered by the isolation module.

Electrical devices used for electronic and electronic devices, transceivers, sensors, or electrical connections are tightly mounted inside cylindrical seals such as tubes, pipes, or hoses to provide electrical connections at installation locations that require watertightness, such as ocean or river. BACKGROUND OF THE INVENTION It is well known that a sonar detector is provided which maintains good mechanical properties such as pressure resistance, tensile strength, bending strength or motility without being affected.

Known conventionally known as the sonar detection device of this type is a tow-type underwater detection device that is towed by a vessel or the like to detect sound waves generated from the lower surface of the water, such a towing type sonar detection device is generally a towing cable, sensor And a tail rope, and in the form of a towing sonar device having such a configuration, for example, an external hose such as a towing sonar seismic streamer, a hydrophone, and a spacer element. It consists of a tension wire, a bulkhead, and a hydrophone mount.

Since the underwater seismic probe is made of a single layer of polyvinyl chloride or polyurethane material, it is easy to break the connection part when high tension is applied to the body due to seawater resistance. Although reinforcing tension wires are arranged over the entire length of the body, this arrangement prevents the isolation of the longitudinal waves consisting of the kinetic components propagated directly from the ship and the vibrational components due to the vortices generated around the cable in each section unit. It became. Therefore, in this device, mechanical noise generated throughout the sensor portion due to vibration of the strength reinforcing tension wire cannot be effectively suppressed, and accurate sound detection by the sensor portion is difficult.

Another type of sonar is a towing sonar.

The detector is connected to the ship by a cable and is towed to detect useful sound waves through the signal processing by the sensor part surrounded by a cylindrical tube body.

In the case of such a detector, the moon is filled with a plurality of coaxial surface layers of elastomer or plastic, a hydrophone surrounded by the surface layer, a connector for connecting the hydrophone and the inside of the surface layer. It consists of a flow path sensor unit and a vibration isolation module. The entire sensor unit is arranged in a row with a plurality of surface layers and maintained at a constant distance, and is connected to each other repeatedly along a centerline using a relatively thin connector. Therefore, there is no problem in electrical connection and watertightness or fluid resistance. In addition, the material of the surface layer has relatively good damping characteristics and high stiffness, so it is excellent in noise reduction effect due to mechanical damping, and it does not generate bulge wave pain caused by turbulent boundary layer, but urethane or elastomer, etc. Due to the complex composition of a plurality of surface layers, the detection of the acoustic signal by the acoustic sensor enclosed by the plurality of layers was not sufficient, and when the high tensile force is applied because there is no separate tensioning member, the connection part is broken. Had the disadvantages of being.

In addition, although the vibration directly acting on the sensor part by the vibration isolation module could be effectively attenuated, it was difficult to exclude mechanical noise due to residual vibration reciprocating the sensor part after attenuation.

Accordingly, the present invention is designed to solve the problems of the conventional sonar, as described above, by means of a connector assembly that modulates the respective parts of the sonar and fits at both ends of the cylindrical tubular body of each module. By connecting, the tension member extending through the whole device is divided into each module size so that the longitudinal vibration transmitted from the towing cable can be isolated in each module unit while maintaining the tensile strength of the entire sensor unit. At the same time, the vibration isolation module is installed at the front of the sensor unit directly connected to the towing cable. In order to take out residual vibration that is not attenuated by the vibration isolation module to the sensor part, the module having the function of stabilizing the motility of the sensor part is installed at the rear part of the sensor part, that is, the part where the tail rope is joined. In addition, due to the fluid resistance during towing, the vibration generated around the sensor part is attenuated, and residual vibration is also effectively released through the tail rope, so that an error signal due to mechanical noise is caught in the hydrophone of the sensor unit due to the vibration, or underwater It is an object of the present invention to provide a tow-type sonar equipped with an array stabilization module that ensures that the sensor unit loses operational stability during operation and is not placed under high pressure and high tension.

It is still another object of the present invention to provide a sonar detector having an array stabilization module having various sensor units necessary for underwater operation, that is, a heading sensor, a depth sensor, a temperature sensor, and the like.

In order to achieve the above object, the present invention provides a sensor unit for underwater sound wave detection comprising a vibration isolation module, a signal transmission module, an acoustic module, and an array stabilization module, a towing cable connecting the sensor unit to a towing vessel, and a cable of the sensor unit. In a towing sonar consisting of a tail rope joined to an opposite side, the array stabilization module is a cylindrical tube body, a connector assembly fitted to both ends of the cylindrical tube body and connected to other adjacent modules and cables, and the connector An assembly is joined to both ends and is provided with an angular sonar detector which is composed of an array stabilizing point which is surrounded by the cylindrical tube body and filled with a filling oil.

In addition, a sensor unit for underwater sound wave detection consisting of a vibration isolation module, a signal transmission module, an acoustic module and an array stabilization module, a towing cable connecting the sensor unit to a towing vessel, and a tail rope connected to the opposite side of the cable of the sensor unit. In the towed sonar structure configured, the array stabilization unit of the array stabilization module is joined to the connector coupled to both ends of the cylindrical tube body tension member extending in the longitudinal direction in the cylindrical tube body, maintaining a constant distance from each other A plurality of shape retaining members fitted to the tensioning member, a depth sensor fitted to the tensioning member at a position immediately next to the front connector among the connectors, and a head fitted to the tensioning member between the depth sensor and the foremost shape retaining member; Sensor, ON installed inside the rear connector The present invention provides a sonar detection apparatus having an array stabilization module composed of a degree sensor.

Hereinafter, the configuration according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a state of use of the tow hydrophone 1 according to the present invention.

The sonar 1 is generally composed of a sensor unit 2, a cable 3, and a tail rope 17.

In use, the sensor unit 2 has its own buoyancy by the filling oil 18 filled therein and remains in neutral buoyancy in the water, and is connected to the rear of the ship by a cable 3 connected to the front of the sensor unit 2. It is towed to detect sound below sea level and is wound by a winch 7 fixed to the vessel 5.

At the rear of the sensor portion, a tail rope 17 was attached on the central axis.

The sensor unit 2 of the sonar detector shown in FIG. 1 includes a vibration isolation module 9, a signal transmission or data link module 11, a tele-metry data module 11, and an acoustic module 13. And an array stabilization module (15), which are modularized and connected and connected by connectors 19 and 21, respectively.

2 shows an arrangement stabilization module 15 of such a sensor part 2, which is surrounded by a cylindrical tubular body 20 (hose) made of polyurethane, which is adjacent to form a linear arrangement as a whole. It is connected in series by the module 13 and the tail rope 17 and the connectors 19 and 21.

The heat stabilizer unit 23 is built in the state in which the filling oil 18 is filled in the hose 20.

This arrangement stabilization unit 23 is provided with the tension member 25 extended in the longitudinal direction from the cylindrical tube body center position.

This tension member is made of one strand of nylon rope in this embodiment.

The nylon rope 25 maintains the module 23 within a certain tension limit, thereby maintaining the mechanical coupling of the wires and components therein, and the vibration applied to the sensor unit 2 does not reciprocate back and forth in the sensor unit 2. Without going through the tail rope (17) to the outer space.

These ropes also hold the wires passing through the inside of the hose 20 in the middle and form a retaining member or spacer 27 that prevents the hose 20 from bending when the entire sensor portion 2 is wound around the winch 7. Are molded and bonded to the connectors 19 and 21, respectively.

Immediately behind the connector 19, the depth sensor 29 is fitted to the rope 25 so as to detect the depth of the sensor unit 2 during the sonar operation. In addition, the heading sensor 31 is positioned between the spacer 27 at the very front and the depth sensor 29 to detect the towing direction of the sensor unit 2.

The rear connector 21 is also equipped with a temperature sensor 33 so that the effect of the seawater density on the neutral buoyancy state of the sensor 2 can be grasped at that time by measuring the water temperature of the seawater.

Referring to Figure 3, the spacer 27 is shown in a cross-sectional state, the spacer 27 is composed of two parts of the left side (27a) and the right side (27b), the top of the protrusion 34 protruding in the upper and lower sides By fitting the fastening clip 38 to the groove 36 formed in the is integrally coupled as if it is a single body (39).

When one strand of nylon rope 25 is used as the tension member, the rope 25 passes through the through hole 35 installed in the center of the body 39, and when two strands of rope are used, The tension member passes through the through holes 35 respectively installed through the through holes 35 above and below.

Four wiring holes 41 penetrate the body 39 around the through hole 35.

On the left and right sides of the body 39, a pair of L-shaped wings 43 are protruded as elastic members, respectively.

The elasticity of the wing 43 allows the spacer 27 to be in close contact with the hose 20. Between the pair of upper and lower wing portions 43, the wiring seat 45 is formed through the outer peripheral portion by the slot 47.

As shown in FIG. 4, a ring groove 49 is formed in the through hole 35 of the spacer 27 so that when only one strand of the tension rope 25 is used as in this embodiment, the outer peripheral portion of the tension rope 25 is formed. The ring 27 for fixing the spacer 27 is fitted in the ring groove 49. The ring hole 49 is formed in the through hole 35. When two strands of tension rope are used, A wound ring 27 (not shown) that is wound around the spacer 27 is fitted into the ring groove 49 to maintain a constant distance between the spacer and the spacer when the sensor unit is operated.

In addition, the ring 53 can arbitrarily change its weight, facilitating an approximate change in the overall weight of the module.

Therefore, according to the sonar detecting apparatus provided with the array stabilization module of the present invention, it is possible to divide and fix the tension member in each module unit by modularizing the respective parts of the sonar detecting apparatus and connecting each module by the connector assembly. Therefore, the vibration transmitted from the towing cable can be isolated in each module unit while maintaining the tensile strength of the entire sensor unit. Also, the vibration remaining is not completely attenuated by the vibration isolation module. The residual vibration can be prevented from reciprocating back and forth around the sensor part, so that the vibration of the sensor module's acoustic module can catch an erroneous signal due to mechanical noise, or the sensor part loses its operational stability and is placed under high pressure and high tension when operating underwater. Can be prevented. The present invention as described above is a variety of modifications by those skilled in the art through the detailed description and drawings of the invention within the scope without departing from the spirit and scope described in the appended utility model registration claims Changes are possible.

Claims (4)

Underwater sound wave detection sensor unit 2 consisting of vibration isolation module 9, signal transmission module 11, sound module 13 and array stabilization module 15, tow vessel 5, the sensor unit 2 The stabilization of the arrangement in the towing type sonar detector (1) consisting of a towing cable (3) for connecting the tail ropes (17) bonded to the opposite side of the cable (3) of the sensor unit (2). Module 15 is a cylindrical tube body 20, the connector assembly (19, 21) to be fitted to both ends of the cylindrical tube body 20 to connect with other adjacent module 13 and the cable (3), and the connector assembly (19, 21) is provided with an array stabilization module, characterized in that it consists of an array stabilization unit (23) joined to both ends and enclosed by the cylindrical tube body (20) and filled with a filling oil (18). A towed sonar. 2. The tension member 25 according to claim 1, wherein the array stabilization unit 23 is joined to the connectors 19 and 21 fitted at both ends of the cylindrical tube body 20 and extends in the longitudinal direction in the cylindrical tube body 20. ), A plurality of shape holding members 27 fitted to the tension member 25 while being kept at a predetermined interval from each other, and to the tension member 25 at a position immediately next to the front connector 19 of the connectors 19 and 21. The tail connector of the head sensor 31 and the connectors 19 and 21 which are fitted to the tension member 25 between the depth sensor 29, the depth sensor 29 and the frontmost shape-retaining member 27 that are fitted. A towing type sonar detector provided with an array stabilization module, characterized by comprising a temperature sensor (33) provided in (21). The method of claim 2, wherein the shape holding member 27 is composed of two parts, the left side 27a and the right side 27b, and the left and right side pieces 27a and b protrude from the upper and lower sides 34. Grooves 36 are formed at the upper end, so that the fixing clip 38 is inserted into the grooves 36 to form a single body 39, and the tension when one strand of the tension member 25 is used. When the member 25 passes and the through hole 35 and two tension members installed in the center of the body 39 to be fixed in the longitudinal direction by the ring groove 49, the tension member passes through, Through holes 37 are provided in the upper and lower sides of the through hole 35 to be fixed in the longitudinal direction by the ring groove 51, and four wiring holes are provided through the periphery of the through hole 37 41), a pair of L-shaped blades protruding as elastic members on both the left and right sides of the body 39 And a wiring seat 45 formed between the pair of upper and lower wing portions 43 in a state where the portion 43 and the slot 47 pass through the outer circumferential portion. Towed sonar. 4. The towing type sonar detector according to claim 3, wherein the tension member (25) is a nylon rope.