JP3998287B2 - Underwater exploration towing device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an underwater exploration towing device that tows a towed body with Teggs and transmits a signal by propagating vibrations with Tegs.
[0002]
[Prior art]
Conventionally, as this type of underwater towed exploration device, a cable is pulled out from a cable winding device mounted on a ship, and a towed body is connected to the tip of the cable, and an ultrasonic vibrator, an ultrasonic transmitter, An ultrasonic receiver and a carrier signal converter for converting an echo signal from the ultrasonic receiver into a carrier signal are mounted, and a display signal converter for converting the carrier signal into a display signal on the side of the cable winding device In addition, a display device that displays a display signal from a display signal conversion device is proposed.
[0003]
[Problems to be solved by the invention]
However, in such an underwater towed exploration device, the wires in the cable are multi-core, and insulation is necessary to resist water pressure. Further, in order to tow a towed body with a cable, There has been a problem that the outer diameter becomes thicker and heavier, so that the winding device for winding the cable and the motor for rotating the winding device become larger.
[0004]
[Means for Solving the Problems]
The present invention relates to an elastic member fixed to a ship, a vibration-electric signal converter that is attached to the elastic member and converts vibration transmitted to the elastic member into an electric signal, and the vibration-electric signal converter. Through a receiver comprising a digital signal-display signal converter for converting the digital signal of the signal into a display signal, a display device for displaying the display signal from the digital signal-display signal converter, and a guide fixed to the elastic member Tegs yarn winding device that is mounted on a ship that pulls out Tegs yarn and is rotated by a motor, two ultrasonic transducers, an ultrasonic transmitter that applies an oscillation signal to these ultrasonic transducers, and these ultrasonic waves An ultrasonic receiver that amplifies the reflected echo signal from the transducer, a digital signal converter that converts the reflected echo signal from the ultrasonic receiver into a digital signal, and an output of the digital signal converter It is equipped with a digital signal-vibration converter that converts it into a transverse wave that propagates to the Tegs yarn, and is composed of a towing body connected to the Tegs yarn, and the vibration-electric signal converter of the receiver is an elastic a microphone mounted into contact with sexual member, and wherein the digital signal of the tow - vibration transducer has one end connected to the case, the elastic body the gut thread is connected to the connecting portion of the other end And a magnet connected to the middle part of the elastic body and a coil attached to the case so that the magnet is inserted, and applying a digital signal from the digital signal converter to the coil The magnet is vibrated, the elastic body is vibrated, and a transverse wave is propagated to the Teggs yarn.
[0005]
Embodiment
According to the present invention, when an oscillation signal is applied from an ultrasonic transmitter to an ultrasonic vibrator mounted on a towed body, ultrasonic waves are irradiated from the ultrasonic vibrator into the water, and reflected echoes from the water again become ultrasonic waves. Received by the transducer and converted into an echo signal, this echo signal is amplified by an ultrasonic receiver, input to a digital signal converter and converted into a digital signal, and further this digital signal is converted into a digital signal-vibration converter The digital signal is propagated as a transverse wave to the connected Tegus yarn by being input to the transverse wave, and this transverse wave is converted into a longitudinal wave by an elastic member attached to the ship, and this longitudinal wave is converted into a vibration-electric signal converter of the receiver. The digital signal is converted into a display signal by a digital signal-display signal converter, and the display signal is displayed on a display device. Through can be propagated signals, also it is not necessary to use a heavy thick cable, further, the winding device and the motor may also small ones.
[0006]
【Example】
FIG. 1 is an explanatory diagram for explaining the principle of one embodiment of the present invention, and FIG. 2 is a block diagram of a receiver according to one embodiment of the present invention. An elastic member 2 is fixed to a ship 1, and this elastic member 2 The receiver 3 is attached to the receiver 3, the display device 5 is connected to the receiver 3 via the cord 4, and the winder 7 that is rotated by the motor 6 is attached to the ship 1. The pulled-out Teggs thread 8 is connected to a towed body 10 towed in the water 9 through a guide 2a fixed to the tip of the elastic member 2, and a horizontal wing 10a is mounted on the side surface of the towed body 10; The vertical wing 10b is attached to the rear of the towed body 10.
[0007]
FIG. 3 is a cross-sectional view of a towed body according to an embodiment of the present invention. Ultrasonic vibrators 11 and 12 are mounted on the side of the towed body 10, and a case 13 is mounted inside the towed body 10. 13, a battery 14, an ultrasonic transmitter 15, an ultrasonic receiver 16, a digital converter 17 having a built-in memory and a digital signal-vibration converter 18 are mounted. The digital signal-vibration converter 18 is installed in the case 13. A connecting portion 20b connected to the Tegs yarn 8 is fixed to the other end of the elastic body 20 with one end 20a fixed with a screw 19, and a magnet 21 is fixed to the middle of the elastic body 20, and this magnet 21 is attached to the case 13. The coil 22 is inserted.
[0008]
FIG. 4 is a block diagram of a receiver according to an embodiment of the present invention. A case 23 of the receiver 3 is attached to an elastic member 2 fixed to the ship 1, and the elastic member 2 is installed inside the case 23. A microphone 24 is closely attached as a vibration-electrical signal converter, a digital signal detected by the microphone 24 is amplified by an amplifier 25, and the amplified digital signal is displayed by a digital signal-display signal converter 26. This display signal is sent from the plug terminal 27 to the display device 5 via the cord 4 and displayed on the display device 5. The battery supplies power to the amplifier 25 and the digital signal-display signal converter 26 in the case 23. 28 is attached.
[0009]
In the underwater exploration towing installation of this embodiment configured as described above, as shown in FIG. 1, the Tegs yarn 8 is drawn from the winding device 7 attached to the ship 1, and as shown in FIG. 5, The towing body 10 connected to the tip of the teg yarn 8 is towed horizontally by the horizontal wing 10 a, the vertical tail 10 b and the horizontal tail 10 c, and is superposed on the ultrasonic transducers 11 and 12 mounted on the top and bottom of the towing body 10. When the oscillation signals are sequentially input from the sonic transmitter 15, ultrasonic waves are generated from the ultrasonic transducers 11 and 12 as indicated by dotted lines, and these ultrasonic waves are respectively irradiated on the upper and lower sides of the towed body 10. As shown in FIG. 1, the light is reflected by the water surface 9 a, the water bottom 9 b, the fish 29, etc., and the echoes are detected again by the ultrasonic transducers 11 and 12, converted into electric signals, and amplified by the ultrasonic receiver 16. The
[0010]
The electric signal amplified by the ultrasonic receiver 16 is temporarily stored in the memory of the digital converter 17 and sequentially read out and converted into a digital signal. This digital signal is converted into a digital signal-vibration converter 18. When input to the coil 22, the magnet 21 vibrates in accordance with this digital signal, and a transverse wave is generated in the Tegg yarn 8 and propagates by vibrating the central portion of the elastic body 20.
[0011]
Since this transverse wave propagates through the Teggs yarn 8 and is converted into a longitudinal wave by the elastic member 2 and propagates, the longitudinal wave is sequentially transmitted by the microphone 24 attached to the receiver 3 attached to the elastic member 9. The digital signal is converted into a digital signal, the amplified digital signal is amplified by the amplifier 25, converted into a display signal by the digital signal-display signal converter 26, and as shown in FIG. The fish school B1, the bottom C, the school B2 near the bottom, and the track D of the towed body 10 are displayed.
[0012]
In this embodiment, when the oscillation signals are sequentially input from the ultrasonic transmitter 15 to the ultrasonic vibrators 11 and 12 mounted on the top and bottom of the towed body 10, the ultrasonic vibrator is configured in this way. 11 and 12, ultrasonic waves are respectively generated as indicated by dotted lines, and these ultrasonic waves are respectively irradiated on the upper and lower sides of the towed body 10, and reflected on the water surface 9a, the water bottom 9b or the fish 29, respectively, as shown in FIG. The echoes are detected again by the ultrasonic transducers 11 and 12 and converted into electric signals, amplified by the ultrasonic receiver 16, and the electric signals amplified by the ultrasonic receiver 16 are converted into a digital converter 17. Since the digital signal is inputted to the coil 22 of the digital signal-vibration converter 18 according to the digital signal, the digital signal is converted into a digital signal. Since the stone 21 vibrates and moves in the center of the elastic body 20, a transverse wave is generated and propagated in the Tegg yarn 8, and this transverse wave is received by the elastic body 2 and the receiver 3 as shown in FIG. 2. Can be displayed on the display device 5.
[0013]
【The invention's effect】
As described above, in the underwater exploration towing device of the present invention, the towed body can be towed with the Tegs yarn, and the underwater state detected by the towed body can be propagated by the Tegs yarn and the elastic member. There is an advantage that the take-up device and the motor can be small.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram illustrating the principle of one embodiment of the present invention.
FIG. 2 is a configuration diagram of a vibration-electric signal converter according to one embodiment of the present invention.
FIG. 3 is a cross-sectional view of a towing body according to one embodiment of the present invention.
FIG. 4 is a configuration diagram of a vibration-electric signal converter according to one embodiment of the present invention.
FIG. 5 is a block diagram illustrating the operation of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ship 2 Elastic member 3 Vibration-electric signal converter 4 Code 5 Display device 6 Motor 7 Winding device 8 Tegs 9 Underwater 10 Towing body 11, 12 Ultrasonic vibrator 13 Case 14 Battery 15 Ultrasonic transmitter 16 Super Sound wave receiver 17 Digital converter 18 Digital signal-vibration converter 19 Screw 20 Elastic body 21 Magnet 22 Coil 23 Case 24 Microphone 25 Amplifier 26 Digital signal-display signal converter 27 Plug terminal 28 Battery

Claims (3)

  An elastic member fixed to a ship, a vibration-electric signal converter which is attached to the elastic member and converts vibration transmitted to the elastic member into an electric signal, and a digital signal from the vibration-electric signal converter Through a receiver comprising a digital signal-display signal converter for converting a signal into a display signal, a display device for displaying a display signal from the digital signal-display signal converter, and a guide fixed to the elastic member Tegs yarn winding device that is mounted on the ship and with which the Tegs yarn is pulled out and rotated by a motor, two ultrasonic transducers, an ultrasonic transmitter that applies an oscillation signal to the ultrasonic transducer, and the ultrasonic vibration An ultrasonic receiver for amplifying the reflected echo signal from the child, a digital signal converter for converting the reflected echo signal from the ultrasonic receiver into a digital signal, and the output of the digital signal converter Digital signal into a shear wave propagating in the yarn - a vibration transducer mounted underwater exploration towing apparatus, comprising the connected tow body and the gut yarn.   The underwater exploration towing device according to claim 1, wherein the vibration-electrical signal converter of the receiver is a microphone mounted so as to be brought into contact with an elastic member. The digital signal of the tow - vibration transducer has one end connected to the case, the elastic body the gut thread is connected to the connecting portion of the other end, a magnet that is connected to an intermediate portion of the elastic body, The coil is attached to the case so that the magnet is inserted. A digital signal from the digital signal converter is applied to the coil to vibrate the magnet, and the elastic body is vibrated to oscillate the tex. 2. The underwater exploration towing device according to claim 1, wherein the underwater exploration towing device is configured to propagate a transverse wave to the yarn.

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