JP4637922B2 - Aquatic organism breeding method and apparatus - Google Patents

Description

  The present invention relates to shells for producing pearls such as pearl oysters known as marine pearl shells, aquatic organisms having calcareous (calcium carbonate) outer shells such as corals (marine organisms inhabiting seawater, lakes, rivers, etc.) (Including aquatic organisms inhabiting marsh areas and freshwater areas) by applying ultrasonic waves to increase the vitality of growth, promote growth, and improve the appearance rate of pearls (in the case of pearl oysters) and survival rate The present invention relates to a method for growing aquatic organisms and an apparatus therefor.

  Conventionally, various treatments using ultrasonic waves have been performed. For example, in the ultrasonic therapy apparatus disclosed in Patent Documents 1 and 2, a vibrator that irradiates ultrasonic waves to an affected area on which an implant treatment has been performed is installed, and the implant, the bone tissue, and the like are detected by the ultrasonic waves from the vibrator. To promote integration.

Attempts have also been made to cultivate pearl oysters using ultrasound. For example, in the 1987 and 1988 Ehime Prefectural Fisheries Experiment Station Business Report shown in Non-Patent Documents 1 and 2, a pearl farming net in which a large number of pearl oysters are fixed in an FRP tank filled with seawater, The pearl culture net is irradiated with ultrasonic waves for 1 to 4 minutes per side, and this ultrasonic irradiation is repeated once or twice a week to observe the state change of the pearls. As a result of this observation test, the pearl oysters irradiated with ultrasonic waves have produced good results such as fast growth, high appearance rate of pearls, and high survival rate.
JP 2007-29645 A JP 2007-151914 A 1987 Ehime Prefectural Fisheries Experiment Station Project Report 1988 Ehime Fisheries Experiment Station Project Report

  By the way, in the culture of pearl production shells using ultrasonic waves as described above, the pearl farming net submerged in the sea is irradiated with ultrasonic waves for a certain period of time, but at that time, it was oscillated from the vibrator. Ultrasound is reflected on the walls of artifacts or rocks that exist in the sea. As a result, a phenomenon occurs in which the ultrasonic waves oscillated from the vibrator overlap with the peaks and valleys of the reflected waves to cancel the vibrations. Even if the ultrasonic wave is oscillated from the vibrator, the ultrasonic wave does not have a sufficient effect on the pearl farming net.

  The present invention is intended to solve the problems of the prior art, in which an ultrasonic wave oscillated from a vibrator and a peak and a valley of the reflected wave overlap to suppress the phenomenon of canceling the vibration. It is an object of the present invention to provide a method for growing aquatic organisms and an apparatus therefor, which can be produced in an effective manner and can effectively bring ultrasonic waves from a vibrator to aquatic organisms such as shells for shells and cocoons.

  And in order to achieve the above-mentioned object, aquatic organisms (including marine organisms inhabiting seawater, marshes such as lakes and rivers, aquatic organisms inhabiting freshwater bodies) shown as means for solving the problems of the present invention Then, by reciprocating an ultrasonic transducer that oscillates aquatic organisms such as shells for shells and pearls along a predetermined setting direction, the ultrasonic wave oscillated from the ultrasonic transducer The aquatic organism is irradiated with the ultrasonic wave while changing the phase.

  In the aquatic organism growing method shown as a means for solving the problems of the present invention, the ultrasonic wave oscillated from the ultrasonic vibrator is aquatic by reciprocating the ultrasonic vibrator along the ultrasonic oscillation direction. It is characterized by irradiating a living organism.

  Further, in the aquatic organism growing method shown as the means for solving the problems of the present invention, the ultrasonic wave oscillated from the ultrasonic vibrator is oscillated by swinging the ultrasonic vibrator around a preset support shaft. It is characterized by irradiating aquatic organisms.

  Further, in the aquatic organism growth method shown as a means for solving the problems of the present invention, ultrasonic waves are oscillated so that irradiation ranges overlap with respect to the target aquatic organisms by a large number of ultrasonic transducers. .

  The aquatic organism growing method shown as a means for solving the problems of the present invention is characterized in that ultrasonic waves are irradiated to a target aquatic organism from a large number of ultrasonic transducers suspended in water.

  Moreover, in the aquatic organism breeding method shown as a problem-solving means of the present invention, the aquatic organism having a calcareous outer shell is used as a shell for pearl production.

  In addition, the aquatic organism growing method shown as a means for solving the problems of the present invention is characterized in that an aquatic organism having a calcareous outer shell is used as a cocoon.

  Moreover, in the aquatic organism growing apparatus shown as a means for solving the problems of the present invention, an ultrasonic vibrator that oscillates ultrasonic waves with respect to aquatic organisms such as pearl shells and cocoons, and the ultrasonic vibrator are held. A vibrator holding means; and a phase changing means for changing the phase of the ultrasonic wave oscillated from the ultrasonic vibrator by reciprocating the vibrator holding means along a predetermined setting direction. Features.

  Further, in the aquatic organism growing apparatus shown as the problem solving means of the present invention, the phase changing means includes a support body that movably supports the vibrator holding means along the ultrasonic oscillation direction of the ultrasonic vibrator. The driving unit is configured to reciprocate the support along the ultrasonic oscillation direction.

  Further, in the aquatic organism growing apparatus shown as the problem solving means of the present invention, the phase changing means includes a support body that rotatably supports the vibrator holding means around a support shaft, and a support shaft that is the center. And a driving means for swinging the support.

  In the aquatic organism growth apparatus shown as the problem solving means of the present invention, the vibrator holding means holds a large number of ultrasonic vibrators and irradiates the target aquatic life with these ultrasonic vibrators. It is characterized by oscillating ultrasonic waves so that the ranges overlap.

  Further, in the aquatic organism growing apparatus shown as a means for solving the problems of the present invention, vibrator holding means for holding a large number of ultrasonic vibrators that oscillate ultrasonic waves for aquatic organisms such as shells for pearl production and cocoons, and The vibrator holding means is provided with a vibrator moving means for suspending the vibrator holding means in water and irradiating a target aquatic organism with ultrasonic waves.

  Moreover, in the aquatic organism growing apparatus shown as a means for solving the problems of the present invention, the aquatic organism having a calcareous outer shell is used as a shell for pearl production.

  Moreover, in the aquatic organism breeding apparatus shown as a problem-solving means of the present invention, an aquatic organism having a calcareous outer shell is used as a cocoon.

  In the method for nurturing aquatic organisms shown in the present invention, by reciprocating an ultrasonic transducer that oscillates ultrasonic waves against aquatic organisms such as shells for pearl production, cocoons, and the like along a predetermined setting direction, The aquatic organism was irradiated with the ultrasonic wave while changing the phase of the ultrasonic wave oscillated from the ultrasonic vibrator. For example, an ultrasonic transducer that oscillates ultrasonic waves with respect to aquatic organisms is reciprocated in the ultrasonic oscillation direction, or is oscillated around a support shaft, so that the ultrasonic wave oscillated from the ultrasonic transducer is Because the aquatic organism is irradiated with the ultrasonic wave while changing the phase, the occurrence of a situation in which the ultrasonic wave oscillated from the vibrator and the peak and valley of the reflected wave overlap and cancel the vibration is suppressed, and the vibration It is possible to artificially create a situation where the ultrasonic waves oscillated from the child and the peaks and peaks of the reflected waves and the valleys and valleys are matched to amplify the vibration, and the ultrasonic waves from the ultrasonic transducer are applied to aquatic organisms. This can increase the vitality of aquatic organisms, promote growth, and improve the appearance rate of pearls (in the case of pearl shells and other pearl production shells) and the survival rate. it can.

  In the aquatic organism growth method shown in the present invention, since the ultrasonic waves are oscillated so that the irradiation range overlaps with the target aquatic organisms by a large number of ultrasonic transducers, each ultrasonic vibration The power shortage of the ultrasonic wave oscillated from the child can be compensated, and the irradiation effect of the ultrasonic wave can be sufficiently enhanced.

  In the aquatic organism growing apparatus shown in the present invention, the ultrasonic vibrator held by the vibrator holding means is reciprocated along a predetermined setting direction by the phase changing means, thereby removing the ultrasonic vibrator from the ultrasonic vibrator. The aquatic organism was irradiated with the ultrasonic wave while changing the phase of the oscillated ultrasonic wave. For example, an ultrasonic transducer that oscillates an ultrasonic wave with respect to aquatic organisms is reciprocated in the ultrasonic oscillation direction by the phase changing means, or is oscillated around a support shaft, and thereby the ultrasonic transducer Since the aquatic organism was irradiated with the ultrasonic wave while changing the phase of the ultrasonic wave oscillated from the ultrasonic wave, the ultrasonic wave oscillated from the transducer and the peak and valley of the reflected wave overlapped to cancel the vibration. It is possible to artificially create a situation in which the appearance is suppressed and the ultrasonic wave oscillated from the vibrator and the peak and peak of the reflected wave coincide with each other, and the vibration is amplified by matching the peaks and valleys. As a result, it is possible to effectively irradiate aquatic organisms with ultrasonic waves from ultrasonic transducers, thereby enhancing the vitality of aquatic organisms and promoting growth, and the appearance rate of pearls (including pearl oysters) Pearl production shells) and survival rate can be improved.

  In the apparatus for aquatic organisms shown in the present invention, a large number of ultrasonic vibrators are held in the vibrator holding means, and the irradiation range is overlapped with respect to the target aquatic life by these ultrasonic vibrators. Since the sound wave is oscillated, it is possible to make up for the power shortage of the ultrasonic wave oscillated from each ultrasonic vibrator and sufficiently enhance the irradiation effect of the ultrasonic wave.

  An aquatic organism growth method and apparatus according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. First, what is denoted by reference numeral 1 in FIG. 1 is a pearl culture net to which a number of pearl shells (pearl production shells) 2 are fixed, with respect to the pearl shell 2 in the pearl culture net 1 suspended in water. It is intended to promote the growth of the pearl oyster 2 by irradiating ultrasonic waves. As a means for this, the ultrasonic vibrator 3 that oscillates ultrasonic waves with respect to the pearl shell 2 is reciprocated along a predetermined setting direction so that the ultrasonic waves oscillated from the ultrasonic vibrator 3 The pearl shell 2 is irradiated with the ultrasonic wave while changing the phase.

  FIG. 1 is a diagram specifically showing a pearl cultivating apparatus 10, and a vibrator holding means 11 to which an ultrasonic vibrator 3 is attached, and the vibrator holding means 11 are arranged in an ultrasonic oscillation direction (arrows AB). Phase changing means 12 for changing the phase of the ultrasonic wave oscillated from the ultrasonic transducer 3 by reciprocating along the direction). The vibrator holding means 11 is for holding the ultrasonic vibrator 3 on the front side of the holding means main body 11A, and protects the ultrasonic vibrator 3 on the mounting portion 11B to which the ultrasonic vibrator 3 is attached. A cover (not shown) is attached.

  The phase changing means 12 accommodates the vibrator holding means 11 in the housing portion 13A and supports the vibrator holding means 11 movably along the ultrasonic oscillation direction (arrow A-B direction) of the ultrasonic vibrator 3. And a driving means 14 for reciprocating the vibrator holding means 11 in the supporting body 13 along the ultrasonic oscillation direction (arrow A-B direction). As the means 14, for example, a drive motor is used, and a blade member that receives tidal power is fixed to the vibrator holding means 11, and the vibrator holding means 11 is used by using the tidal power received by the blade member. You may make it reciprocate along an ultrasonic oscillation direction (arrow AB direction).

  In such a phase changing means 12, the vibrator holding means 11 to which the ultrasonic vibrator 3 is attached is reciprocated along the ultrasonic oscillation direction (arrow A-B direction) to produce ultrasonic vibration. Since the pearl shell 2 is irradiated with the ultrasonic wave while changing the phase of the ultrasonic wave oscillated from the child 3, the ultrasonic vibrator is adjusted by adjusting the driving of the vibrator holding means 11 by the driving means 14. 3 suppresses the appearance of a situation where the ultrasonic waves oscillated from 3 and the peaks and valleys of the reflected waves overlap to cancel the vibration, and the ultrasonic waves oscillated from the ultrasonic transducer 3 and the peaks and peaks and valleys of the reflected waves are suppressed. It is possible to artificially create a situation where the vibrations are amplified by matching the valleys (the situation where the wave antinodes and nodes are amplified).

  In the present embodiment, the support member 13 of the phase changing means 12 supports the vibrator holding means 11 to which the ultrasonic vibrator 3 is attached so as to be movable in the direction of arrows AB, which is the ultrasonic oscillation direction. However, the present invention is not limited to this, and a support as shown by reference numeral 15 as shown in FIG. 2 is provided, and a vibrator holding means is provided so that the support 15 swings in the direction of arrow CD about the support shaft 15A. 11 may be attached. That is, the vibrator holding means 11 is attached to the support indicated by reference numeral 15 in the direction of the arrow CD with the support shaft 15A as the center. The spring member 15B may be used for connection, or may be connected using a rod-shaped attachment member, which are appropriately selected. The support 15 is provided with a stopper 16 for determining the movable range of the ultrasonic transducer 3.

  As described above, in the pearl shell breeding apparatus 10 shown in the first embodiment, the ultrasonic transducer 3 that oscillates ultrasonic waves with respect to the pearl shell 2 is reciprocated along a predetermined setting direction. Thus, the pearl shell 2 was irradiated with the ultrasonic wave while changing the phase of the ultrasonic wave oscillated from the ultrasonic vibrator 3. For example, the ultrasonic transducer 3 that oscillates ultrasonic waves with respect to the pearl shell 2 reciprocates in the ultrasonic oscillation direction (arrow AB direction), or swings around the support shaft (arrow CD direction). By changing the phase of the ultrasonic wave oscillated from the ultrasonic vibrator 3, the pearl shell 2 is irradiated with the ultrasonic wave. Therefore, the ultrasonic wave oscillated from the vibrator and a peak of the reflected wave are emitted. And artificially create a situation that amplifies the vibration by matching the peaks and valleys of the ultrasonic waves oscillated from the transducer and the reflected waves, and the valleys and valleys. The ultrasonic wave from the ultrasonic transducer 3 can be effectively irradiated to the pearl shell 2. As a result, the vitality of the pearl shell 2 can be increased, the growth can be promoted, and the appearance rate and survival rate of the pearl can be improved.

  Next, a second embodiment of the present invention will be described with reference to FIGS. Note that, in the second embodiment, the same reference numerals are assigned to portions common to the constituent elements of the first embodiment, and a duplicate description is omitted.

  3 and 4 show a pearl mussel growing apparatus 20 according to the second embodiment, in which a reference numeral 21 indicates a vibrator mounting that constitutes a part of the vibrator holding means 11. It is a board. The vibrator mounting plate 21 is installed at the front portion of the holding means main body 11A of the vibrator holding means 11, and has a larger diameter than the holding means main body 11A. In addition, a large number of the above-described ultrasonic transducers 3 are arranged in a matrix at the front portion of the transducer mounting plate 21. When such a large number of ultrasonic vibrators 3 oscillate ultrasonic waves so that the irradiation range overlaps with the target pearl oyster 2, the ultrasonic vibrator 3 is used alone. To compensate for the lack of power.

  In the second embodiment, the transducer mounting plate 21 for arranging the ultrasonic transducers 3 in a matrix is provided at the front of the holding unit main body 11A of the transducer holding unit 11. However, the present invention is not limited to this. Alternatively, as shown in FIG. 5, a large number of ultrasonic transducers 3 may be arranged in a matrix directly on the front surface of the main body 11 </ b> A of the transducer holding means 11 without providing the transducer mounting plate 21. As the power of the drive means 14, for example, a drive motor is used, and a blade member that receives tidal power is fixed to the vibrator holding means 11, and the tidal power received by this blade member is used to The vibrator holding means 11 may be reciprocated in the direction of arrow CD. Further, the number of rows, the number of columns, the interval, etc., in which the ultrasonic transducers 3 are arranged in a matrix are not limited to those shown in the figure, and are appropriately determined.

  As described above, in the pearl shell growing apparatus 20 shown in the second embodiment, the ultrasonic waves are oscillated so that the irradiation range overlaps with the target pearl shell 2 by the multiple ultrasonic transducers 3. Therefore, the power shortage of the ultrasonic waves oscillated from the respective ultrasonic transducers 3 can be compensated, and the irradiation effect of the ultrasonic waves can be sufficiently enhanced.

  Next, a third embodiment of the present invention will be described with reference to FIG. Note that, in the third embodiment, the same reference numerals are given to portions common to the constituent elements of the above-described embodiment, and redundant description is omitted.

  The pearl shell growing device 30 shown in the third embodiment differs from the pearl shell growing devices 10 and 20 of the first and second embodiments in that the vibrator holding means 31 is mechanical. It is a point that does not reciprocate. That is, in the pearl shell growing apparatus 30 shown in the third embodiment, a large number of ultrasonic transducers 3 are arranged in a matrix at the front portion of the transducer holding means 31 and moved by the transducer moving means 32. It is characterized by the fact that it was made to let you. The vibrator moving means 32 suspends the vibrator holding means 31 with a wire 34 from a ship 33 by a hoisting machine (not shown), and the target pearl shell 2 is formed by a large number of ultrasonic vibrators 3 in front of the vibrator holding means 31. On the other hand, ultrasonic waves are irradiated while moving.

  In the pearl shell breeding apparatus 30 shown in the third embodiment, the vibrator holding means 31 holds a number of ultrasonic vibrators 3 that oscillate ultrasonic waves with respect to the pearl shell 2, and the vibrator The moving means 32 suspends the vibrator holding means 31 from the ship 33 in the water to move the ultrasonic vibrator 3 to the target pearl shell 2, thereby irradiating the pearl shell 2 with ultrasonic waves. From the large number of ultrasonic transducers 3 suspended in the water, the ship 33 is irregularly shaken by the wave undulation, and the ultrasonic waves oscillated from the ultrasonic transducers 3 and the peaks of the reflected waves The situation where the valleys overlap and cancel the vibration is less likely to occur, and the ultrasonic waves oscillated from the ultrasonic transducer 3 and the peaks and peaks of the reflected waves, and the valleys and valleys irregularly coincide with each other. Strong and weak against the ultrasonic wave oscillated from It is possible to produce a change. As a result, the pearl shell 2 can be stimulated by the ultrasonic waves from the ultrasonic transducer 3 to increase the vitality of the pearl shell 2, promote the growth, and improve the appearance rate and survival rate of the pearl. . Moreover, the irradiation range can be easily changed by moving the ship 33, and the pearl shell 2 can be irradiated with ultrasonic waves in a wider range. Further, by moving the growing apparatus 30 equipped with the ultrasonic transducer 3 using the ship 33, it is possible to irradiate a wide range of aquatic life with a small number of ultrasonic transducers 3, and the ship 33. By providing a power source, it is easy to supply power and there is no need to lay many cables as in the case of direct arrangement in the sea.

  In the pearl shell growing apparatuses 10, 20, and 30 shown in the first to third embodiments described above, an adhesion preventing paint for preventing the shells from adhering may be applied to the surface of the apparatus. Further, a cushion material or the like may be attached to the surface in order to weaken the impact of the wave or the collision with the obstacle. Further, the number of rows, the number of columns, the interval, etc., in which the ultrasonic transducers 3 are arranged in a matrix are not limited to those shown in the figure, and are appropriately determined.

  In the ultrasonic transducer 3 (3A, 3B, 3C) shown in the first to third embodiments described above, ultrasonic waves are output by the ultrasonic oscillation circuits shown in FIGS. . In FIG. 7, CN1 is a connector for obtaining an ultrasonic output of CH1 (channel 1), to which an ultrasonic transducer 3A is connected. CN2 is a connector for obtaining an ultrasonic output of CH2, and is connected to the ultrasonic transducer 3B. CN3 is a connector for obtaining an ultrasonic output of CH3, to which an ultrasonic transducer 3C is connected. Each connector CN1, 2 and 3 records sensors S1, S2 and S3 for detecting whether or not the ultrasonic transducers 3A, 3B and 3C are connected, and transducer parameters of the ultrasonic transducers 3A, 3B and 3C. Built-in memories EP1, EP2, EP3 such as EEPROM. The vibrator parameter is, for example, impedance information, resonance frequency, or the like. In the ultrasonic oscillation circuits shown in FIGS. 7 to 9, an example in which three ultrasonic transducers 3 (3A, 3B, 3C) are provided has been described. Is the same. Alternatively, a plurality of vibrators may be arranged in parallel at the positions indicated by reference numerals 3A, 3B, and 3C, and three types of vibration control may be performed on these many vibrators.

  A VCO (Voltage Control Oscillator) 40 is an oscillation means that oscillates an ultrasonic signal, 41 is a CPU that controls the operation of the entire apparatus, 42 is an output method selection unit, 43 is a frequency setting unit, and 44 is a gate signal 45 from the CPU 41. The gate circuit that gates the oscillation output of the VCO 40, 46 is a drive circuit that amplifies the ultrasonic signal that has passed through the gate circuit 44, and SW1, SW2, and SW3 select the amplified ultrasonic signals to the connectors CN1, 2, and 3, respectively. The switch is controlled by a switch signal 47 from the CPU 41. The drive circuit 46 may be configured so that the output can be controlled by the CPU 41. These switches SW1, 2, 3 are actually composed of transistors and FETs. The gate signal 45 is obtained by adding the switch signal 47 output from the CPU 41 for each of the switches SW1, 2, and 3.

  The phase difference detection circuit 48 is connected to outputs from the connectors CN1, 2 and 3 and drive signal outputs output via the ultrasonic transducers 3A, 3B and 3C.

  The changeover switch 49 is controlled to be changed over by the CPU 41 in synchronism with SW1, 2,3.

  The resistors 50a, 50b, and 50c are resistors having resistance values determined according to the frequencies used by the ultrasonic transducers 3A, 3B, and 3C.

  51 is an adder, and 52 is a reference voltage controller. The reference voltage control unit 52 passes through the adder 51 to the VCO 40 that is an oscillating means for oscillating the corresponding ultrasonic transducers 3A, 3B, 3C immediately after the SW1, 2, 3 are switched by the CPU 41. Adjust the supplied reference voltage.

  Reference numeral 100 denotes a memory, which is used as a data table including a plurality of data strings in which frequency data of ultrasonic signals oscillated by the oscillating means is stored in advance as shown in FIG. The data table is composed of a plurality of data strings 100a to 100n in which frequency data of ultrasonic signals oscillated by the oscillation means are stored in advance. Reference numeral 101 denotes an operation means. In the CPU, the oscillation means changes the oscillation frequency based on the frequency data stored in the data string selected by the operation means.

One of the plurality of data strings 100d stores specific frequency data and other frequency data, and more specific frequency data than other frequency data. For example, assuming that a specific frequency is 5 MHz and other frequencies are 1 MHz and 3 MHz, the following is obtained.
Data string: 5, 1, 5, 3, 5, 1, 5, 3, 5, 1, 5, 3, 5 ...

  In addition, the frequency suitable for the growth of aquatic organisms having a calcareous outer shell is 26 KHz to 40 KHz, and the frequencies exemplified as 1 MHz, 3 MHz, and 5 MHz are suitable for the growth of aquatic organisms. The settings can be changed as appropriate.

  Further, the plurality of data strings 100a to 100n are expanded, and the expanded data string is not only the frequency data of the ultrasonic signal oscillated by the oscillating means but also the output data of the ultrasonic signal and the ultrasonic wave that is a square wave signal. The duty ratio data of the signal is stored together, and the output of the ultrasonic signal and the duty ratio of the square wave signal input to the oscillating means are changed together with the frequency of the ultrasonic signal oscillated by the oscillating means. Also good. At that time, an integral value per unit time of irradiation energy may be determined in advance, and the output and the duty ratio may be controlled so that this range is constant when the frequency is the same. For example, it is as follows. Data string (frequency, duty ratio, output): (5, 0.5, 0.125), (1, 0.5, 0.25), (5, 0.25, 0.25), (3 0.5, 0.125), (5, 0.125, 0.5), ...

  Next, the operation according to the above configuration will be described. The CPU 41 creates a gate signal 45 for controlling the gate circuit 44 and a switch signal 47 for controlling the switches SW1, 2, 3 and the changeover switch 49 in response to detection by the sensors S1, 2, 3. In response to these control signals 45 and 47, as shown in FIG. 8, a plurality (eight in the figure) of output patterns of ultrasonic outputs of the channels CH1, 2, 3 output from the connectors CN1, 2, 3 are obtained. It is done. FIG. 8A shows an example of the first output method, and FIG. 8B shows an example of the second output method. The first or second output method is selected by the output method selection unit 42.

  In FIG. 8, the pulse shown in each channel is shown as a gate signal 45 or a switch signal 47 for extracting an ultrasonic signal. There are eight combinations of connection of the ultrasonic transducers 3A, 3B, and 3C to the connectors CN1, 2, and 3, which are represented by a 3-bit status STS of “000”, “111”. The output timing of the ultrasonic signal is automatically changed according to this status. When the status is 0, it is not output.

In the case of the first output method of FIG. 8A, the output timings of CH1, 2, 3 are sequentially adjacent regardless of the status. For example, in the case of “111”, the pulses of the three channels are sequentially adjacent, and in the case of “101”, the CH1 pulse and the CH3 pulse are adjacent. In this way, places where there is no pulse regardless of the channel are packed and output. In the case of the second output method shown in FIG. 8B, in the case of “111”, the pulses of the three channels are adjacent to each other, and in the case of “101”, the gap between the CH1 pulse and the CH3 pulse is not filled. Thus, only CH2 pulses are available.
The output timing patterns in FIGS. 8 (a) and 8 (b) are merely examples. In addition, various deformation patterns are possible for each channel with respect to the position and pulse width of the pulse.

  The CPU 41 creates the gate signal 45 and the switch signal 47 as described above, and at the same time the ultrasonic transducers 3A, 3B, 3C stored in the memories EP1, EP2, EP3 built in the connectors CN1, 2, 3 respectively. The VCO 40 is controlled so that an ultrasonic signal corresponding to the read parameter is output. That is, control is performed so that an ultrasonic signal corresponding to impedance information, resonance frequency, etc. specific to each ultrasonic transducer is output during the pulse period of each channel (the ON period of each of the switches SW1, 2, and 3). is doing.

  The output of the VCO 40 is supplied from the gate circuit 44 and the drive circuit 46 to the ultrasonic transducers 3A, 3B, 3C via the switches SW1, 2, 3 and each ultrasonic wave is changed according to the switching state of the switches SW1, 2, 3. The vibrator is vibrated ultrasonically.

  Although three ultrasonic transducers are used in the present embodiment, two or three or more ultrasonic transducers may be used. Further, the gate circuit 44 that controls the oscillation output timing may be omitted.

  Next, a feedback circuit for making the oscillation frequency of the VCO 40 coincide with the resonance frequency of the ultrasonic transducers 3A, 3B, 3C that has been changed by the ambient temperature or the like will be described.

  The phase difference between the output of the transmitter 51 input to the ultrasonic transducers 3A, 3B, 3C via the switches SW1, 2, 3 and the signal output via the ultrasonic transducers 3A, 3B, 3C is , And supplied to the phase difference detection circuit 48. The phase difference detection circuit 48 is composed of, for example, a lock-in amplifier.

  The phase difference detection output from the phase difference detection circuit 46 is input to the adder 51 via the changeover switch 49 and the resistors 50a, 50b, and 50c. Here, in the resistors 50a, 50b, and 50c, appropriate resistance values for setting the frequency variable range of the VCO 40 corresponding to the ultrasonic transducers 3A, 3B, and 3C are set. The resistors 50a, 50b, and 50c generate an adjustment voltage to be input to the adder 51 from the potential difference corresponding to the phase difference detected by the phase difference detection circuit 48. The adjustment voltage and the reference voltage generated by the reference voltage control unit 52 are added by the adder 51 and input to the VCO 40. The VCO 40 adjusts the oscillation frequency output from the VCO 40 by the adjustment voltage, thereby matching the resonance frequency of the ultrasonic transducers 3A, 3B, and 3C with the oscillation frequency of the VCO 40.

  Next, a program according to the present embodiment and a recording medium for recording the program will be described. This program is for the CPU 41 in the computer system to execute processing based on the above-described operation of the pearl shell growing apparatus 10, 20, 30 according to the present embodiment.

  In addition, as a recording medium for recording the program, a magneto-optical disk, an optical disk, a semiconductor memory, a magnetic recording medium, and the like can be used. These include a ROM, a RAM, a CD-ROM, a flexible disk, a memory card, and the like. It may be configured and used.

  In addition, this recording medium can store a program for a certain period of time such as a volatile memory such as a RAM in a computer system as a server or a client when the program is transmitted via a network such as the Internet or a communication line such as a telephone line. The thing to hold is also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. The transmission medium is a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

  The program may be for realizing part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  Therefore, even when this program and recording medium are used in a system or apparatus different from the system or apparatus in FIG. 7 and the computer of the system or apparatus executes this program, the functions and effects described in the embodiment are equivalent. Functions and effects can be obtained, and the problems of the present invention can be solved.

  In addition, instead of the operation means, the CPU 41 automatically selects a different data string every fixed time, and the ultrasonic wave corresponding to the data string is irradiated for a fixed time, thereby further irradiating the object to be irradiated. The stimulation habituation threshold is difficult to decrease. The selection method may be random, in which case the integration value of irradiation energy per unit time is determined in advance, and the output and duty ratio are appropriately controlled during irradiation so that this range is constant. Also good.

  Moreover, you may accommodate the memory which memorize | stores the usage time of the said probe in the probe which comprises ultrasonic transducer | vibrator 3A-3C. For example, the configuration is as follows. The probe includes an ultrasonic vibrator, a memory for storing a usage time, a housing for housing the ultrasonic vibrator and the memory, and a cord for connecting to the pearl shell growing apparatuses 10, 20, and 30. It has. While the probe is connected to the pearl shell growing device 10, 20, or 30, the CPU 41 rewrites the data in the memory in accordance with the time when the probe is used. In this configuration, when the CPU 41 reads the data in the memory at the time of the rewriting and determines that the usage time of the probe recorded in the data has reached a predetermined usage time, the pearl shell is grown. The apparatuses 10, 20, and 30 may notify the replacement (life) of the ultrasonic transducer probe by an appropriate means.

  7 to 9, the control for changing the frequency is performed. However, the present invention is not limited to this, and normal ultrasonic irradiation without changing the frequency may be performed and can be selected as appropriate. In the first to third embodiments described above, as an example of an aquatic organism having a calcareous outer shell, the pearl shell 2 such as a pearl oyster generally known as a shell for pearl production is given as an example. It is not limited to, but may be applied to marine pearl production shells other than pearl oysters 2 and freshwater pearl production shells such as oyster mussels, and moths that inhabit the ocean, lakes, rivers, etc. You may apply with respect to other aquatic organisms, such as cultured shellfish.

Schematic configuration diagram of the pearl shell breeding apparatus shown as the first embodiment of the present invention The figure which shows the other aspect of FIG. Schematic block diagram of the pearl shell growing apparatus shown as the second embodiment of the present invention 3 is a perspective view. The figure which shows the other aspect of FIG. Schematic block diagram of the pearl shell breeding apparatus shown as the third embodiment of the present invention Block diagram showing the ultrasonic oscillation circuit applied to the pearl shell growing device Timing chart showing the timing of ultrasonic output of each channel Diagram showing the structure of the turntable

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pearl culture net 2 Pearl shell 3 Ultrasonic oscillator 10 Nacreous nurturing device 11 Vibrator holding means 12 Phase change means 13 Support body 14 Driving means 15 Support body 15A Support shaft 16 Stopper 20 Nacreous cultivating apparatus 21 Vibrator Mounting plate 30 Growing device for pearl shell 31 Vibrator holding means 32 Vibrator moving means

Claims (12)

  The phase of the ultrasonic wave oscillated from the ultrasonic vibrator is changed by reciprocating the ultrasonic vibrator that oscillates an aquatic organism with a calcareous outer shell along a preset direction. A method for nurturing aquatic organisms, which comprises irradiating the aquatic organisms with the ultrasonic waves.   The aquatic organism is grown according to claim 1, wherein the aquatic organism is irradiated with ultrasonic waves oscillated from the ultrasonic transducer by reciprocating the ultrasonic transducer along an ultrasonic oscillation direction. Method.   The aquatic organism according to claim 1, wherein the aquatic organism is irradiated with ultrasonic waves oscillated from the ultrasonic transducer by swinging the ultrasonic transducer about a preset support shaft. Training method.   The method for growing aquatic organisms according to any one of claims 1 to 3, wherein ultrasonic waves are oscillated by a plurality of ultrasonic transducers so that irradiation ranges overlap with respect to the target aquatic organisms. . The method for growing aquatic organisms according to any one of claims 1 to 4 , wherein the aquatic organism having a calcareous outer shell is a shellfish for producing pearls. The method for growing aquatic organisms according to any one of claims 1 to 4 , wherein the aquatic organism having a calcareous outer shell is a cocoon.   An ultrasonic vibrator that oscillates an ultrasonic wave with respect to an aquatic organism having a calcareous outer shell, a vibrator holding means that holds the ultrasonic vibrator, and the vibrator holding means along a predetermined setting direction An aquatic organism growth apparatus comprising: phase changing means for changing the phase of an ultrasonic wave oscillated from an ultrasonic vibrator by reciprocating. The phase changing means includes a support body that movably supports the vibrator holding means along the ultrasonic oscillation direction of the ultrasonic vibrator, and a drive means that reciprocates the support body along the ultrasonic oscillation direction. The aquatic organism breeding apparatus according to claim 7, comprising: The phase changing means comprises the vibrator holding means including a support body that rotatably supports a support shaft, and a drive means that swings the support body about the support shaft. The aquatic organism breeding apparatus according to claim 7 . The vibrator holding means holds a large number of ultrasonic vibrators, and oscillates ultrasonic waves so that irradiation ranges overlap with respect to a target aquatic organism by the ultrasonic vibrators. The aquatic organism breeding apparatus according to any one of 7 to 9 . The aquatic organism growing apparatus according to any one of claims 7 to 10 , wherein the aquatic organism having a calcareous outer shell is a shell for pearl production. The aquatic organism growing apparatus according to any one of claims 7 to 10 , wherein the aquatic organism having the calcareous outer shell is a cocoon .

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