JPH10150418A - Underwater proving tow device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the underwater proving tow device by which a tow body is towed with a catgut, in which vibration is propagated by the catgut and the signal is delivered by vibration. SOLUTION: An elastic member 2 is fixed to a ship 1, a receiver 3 is mounted on the elastic member 2, a display device 5 is connected to the receiver 3 via a cord 4, a winder 7 driven by a motor 6 is mounted on the ship 1, a catgut 8 extracted from the winder 7 is connected to a towed body 10 that is towed in water 9 through a guide 2a fixed to a tip of the elastic member 2. Furthermore, a horizontal wing 10a is mounted on a side face of the towed body 10 and a vertical wing 10b is mounted to a tail end of the towed body 10. Through the constitution above, an ultrasonic wave vibrator mounted to upper and lower parts of the towed body 10 detects an echo in water, the detected signal is given to a digital signal - vibration converter, from which a transversal wave is generated and propagated through the catgut 8, then the transversal wave is received by the elastic member 2 and the receiver 3 and displayed by a display device 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater exploration and towing apparatus for towing a tow body with a Tegs thread and transmitting a signal by transmitting a vibration with the Tegs thread.

[0002]

2. Description of the Related Art Conventionally, as this kind of underwater tow detection device, a cable is pulled out from a cable winding device mounted on a ship, and a tow body is connected to a tip of the cable.
An ultrasonic transducer, an ultrasonic transmitter, an ultrasonic receiver, and a carrier signal converter for converting echo signals from the ultrasonic receiver into carrier signals are mounted on the towing body. There is proposed a display signal conversion device that converts a carrier signal into a display signal and a display device that displays a display signal from the display signal conversion device.

[0003]

However, in such an underwater towed exploration device, the electric wires in the cable are multifilamentary and need to be insulated to withstand the water pressure. In order to tow the body, there is a problem that the outer diameter of the cable becomes large and heavy, and thus the winding device for winding the cable and the motor for rotating the winding device become large.

[0004]

SUMMARY OF THE INVENTION The present invention relates to an elastic member fixed to a ship, and a vibration-electric signal which is attached to the elastic member and converts vibration transmitted to the elastic member into an electric signal. A converter, a receiver comprising a digital signal-display signal converter for converting a digital signal from the vibration-electric signal converter into a display signal, and a display device for displaying a display signal from the digital signal-display signal converter A tugs winding device mounted on the ship and pulled out by a motor and rotated by a motor so as to pull out a tugs through a guide fixed to the elastic member; two ultrasonic vibrators; An ultrasonic transmitter for applying a signal, an ultrasonic receiver for amplifying a reflected echo signal from the ultrasonic transducer, and a digital signal converter for converting a reflected echo signal from the ultrasonic receiver to a digital signal Digital signal for converting the output of said digital signal converter to a transverse wave propagating in the gut yarn - a vibration transducer mounted, is made of the connected tow body to the gut yarn.

[0005]

According to the present invention, when an oscillation signal is applied from an ultrasonic transmitter to an ultrasonic vibrator mounted on a tow body,
Ultrasonic waves are radiated into the water from the ultrasonic vibrator, and reflected echoes from the water are again received by the ultrasonic vibrator and converted into echo signals, which are amplified by the ultrasonic receiver and converted into digital signal converters. Is input to a digital signal-vibration converter, which propagates the digital signal as a shear wave to the connected tex yarn, and the shear wave is applied to the elasticity attached to the ship. Is converted into a longitudinal wave by the sexual member, this longitudinal wave is detected by a vibration-electric signal converter of the receiver and converted into a digital signal, and this digital signal is converted into a display signal by a digital signal-display signal converter. Since this display signal is configured to be displayed on the display device, the signal can be propagated through the thread, and it is not necessary to use a thick and heavy cable. Can up device and the motor may at the small ones.

[0006]

FIG. 1 is an explanatory view for explaining the principle of one embodiment of the present invention, and FIG. 2 is a structural view of a receiver according to one embodiment of the present invention. A receiver 3 is mounted on the elastic member 2, a display device 5 is connected to the receiver 3 via a cord 4, and a winding device 7 rotated by a motor 6 is mounted on the boat 1. The tugs 8 pulled out of the take-up device 7 are towed in the water 9 through a guide 2 a fixed to the tip of the elastic member 2.
0 on the side of the towing body 10
Is mounted, and a vertical wing 10b is provided at the tail of the towing body 10.
Is installed.

FIG. 3 is a sectional view of the towing body according to the embodiment of the present invention. The towing body 10 has ultrasonic vibrators 11 and 12 mounted on its side, and the towing body 10 has a case 13 mounted therein. ,
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 in the case 13. A connecting portion 20b connected to the thread 8 is fixed to the other end of the elastic body 20 having one end 20a fixed by a screw 19, and a magnet 21 is fixed to the middle of the elastic body 20. Is inserted into the coil 22 mounted on the second coil.

FIG. 4 is a structural view of a receiver according to one embodiment of the present invention. A case 23 of the receiver 3 is mounted on an elastic member 2 fixed to the boat 1 and an elastic member is provided inside the case 23. A microphone 24 is mounted as a vibration-electric signal converter in close contact with the member 2, and a digital signal detected by the microphone 24 is amplified by an amplifier 25. The amplified digital signal is converted into a digital signal-display signal converter 26. The display signal is transmitted to the display device 5 from the plug terminal 27 via the cord 4 and displayed, and the power is supplied to the amplifier 25 and the digital signal-display signal converter 26 in the case 23. A battery 28 to be supplied is mounted.

[0009] In the underwater exploration towing installation of the embodiment constructed as described above, as shown in FIG. 1, the Tegs thread 8 is pulled out from the winding device 7 attached to the ship 1, and as shown in FIG. As described above, the towing body 10 connected to the tip of the thread 8
Is horizontally towed by the horizontal wing 10a, the vertical tail 10b, and the horizontal tail 10c, and oscillation signals are sequentially input from the ultrasonic transmitter 15 to the ultrasonic vibrators 11, 12 mounted on the upper and lower sides of the tow body 10, respectively. Then, the ultrasonic transducers 11 and 12
, Ultrasonic waves are respectively generated as shown by dotted lines, and these ultrasonic waves are respectively irradiated on the upper and lower sides of the towing body 10, and FIG.
As shown in the figure, the echoes are reflected by the water surface 9a, the water bottom 9b, the fish 29, etc.
2 and is converted into an electric signal, and is transmitted to the ultrasonic receiver 16.
Amplified by

The electric signal amplified by the ultrasonic receiver 16 is temporarily stored in the memory of the digital converter 17,
Since the digital signal is sequentially read and converted into a digital signal, when this digital signal is input to the coil 22 of the digital signal-vibration converter 18, the magnet 21
Vibrates and moves in the center of the elastic body 20 to generate and propagate a transverse wave in the Tegs thread 8.

The transverse wave propagates through the tex yarn 8 and is then converted into a longitudinal wave by the elastic member 2 and propagated. The waves are sequentially converted into digital signals, and the converted digital signals are amplified by an amplifier 25 and converted into display signals by a digital signal-display signal converter 26. As shown in FIG. , Fish school B near the water surface
1, the water bottom C, the fish school B2 near the water bottom, and the wake D of the towing body 10 are displayed.

In this embodiment, the ultrasonic vibrator 1 mounted above and below the towing body 10 is constructed in this manner.
When oscillating signals are sequentially input from the ultrasonic transmitter 15 to the antennas 1 and 12, respectively, ultrasonic waves are generated from the ultrasonic transducers 11 and 12 as indicated by dotted lines. As shown in FIG. 1, the echoes are reflected by the water surface 9a, the water bottom 9b, the fish 29, etc., and the echoes thereof are detected again by the ultrasonic vibrators 11, 12 and converted into electric signals, and the ultrasonic wave is received. The electric signal amplified by the receiver 16 and then 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. -When input to the coil 22 of the vibration transducer 18, the magnet 21 vibrates according to the digital signal and moves the central portion of the elastic body 20, thereby generating a transverse wave on the Tegs thread 8 and propagating. Runode, this transverse wave is received by the elastic member 2 and the receiver 3 as shown in FIG. 2, it can be displayed on the display device 5.

[0013]

As described above, in the underwater exploration towing device of the present invention, the tow body is towed with a tex thread,
Since the underwater state detected by the towed body can be propagated by the Tegs thread and the elastic member, there is an advantage that the Tegs winding 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 sectional view of the towing body according to the 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 Teguth thread 9 Underwater 10 Towing body 11, 12 Ultrasonic transducer 13 Case 14 Battery 15 Ultrasonic transmitter 16 Ultra 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)

[Claims] 1. An elastic member fixed to a ship, a vibration-electric signal converter mounted on the elastic member and converting vibration transmitted to the elastic member into an electric signal, and the vibration-electric signal. A receiver comprising a digital signal-display signal converter for converting a digital signal from the converter into a display signal; a display device for displaying the display signal from the digital signal-display signal converter; Tex yarn winding device mounted on the ship and pulled out of the Tug yarn through a guided guide, and rotated by a motor, two ultrasonic transducers, and an ultrasonic transmitter for applying an oscillation signal to the ultrasonic transducers An ultrasonic receiver for amplifying a reflected echo signal from the ultrasonic transducer, a digital signal converter for converting a reflected echo signal from the ultrasonic receiver into a digital signal, and an output of the digital signal converter. An underwater exploration and towing device comprising: a digital signal-vibration converter for converting a force into a transverse wave propagating to the Tegs yarn; and a tow body connected to the Tegs yarn. 2. The vibration-signal converter of the receiver,
The underwater exploration and towing device according to claim 1, wherein the microphone is a microphone mounted so as to be in contact with the elastic member. 3. An elastic member having one end connected to a case and a connecting portion at the other end of the electric signal-vibration converter of the towed body, and an electric signal-vibration converter connected to an intermediate portion of the elastic member. A magnet attached to the case so that the magnet is inserted into the case, and applying a digital signal from the digital signal converter to the coil to cause the magnet to vibrate so that the Tex thread The underwater exploration and towing device according to claim 1, characterized in that a transverse wave is propagated through the towing device.