JP3006234U - Wave height meter sensor mount for wave direction spectrum measuring device - Google Patents

Abstract

(57) [Abstract] [Purpose] A wave height meter sensor stand that can be easily attached to a wave height sensor used in a wave direction spectrum measuring device, and can be moved horizontally or vertically and its direction can be changed easily. provide. [Configuration] 3 for mounting the wave height sensor at an interval of 120 degrees toward the periphery centering on the wave height sensor mounting hole in the center
Each slit is provided, and a sensor mounting board with a scale indicating the distance from the central mounting hole is provided near the slit. In addition, a pinion rack mechanism was constructed with a gear that is driven by a motor and its rod by standing a rod on the sensor mounting board, and the motor enables the sensor mounting board to move up and down. Further, in the wave height sensor, a supporting rod is attached to the lower part of the main shaft, and the capacitance line is attached to the lower end of the main shaft.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The wooden device is a wave height sensor for a wave direction spectrum measuring device that is installed in a test water tank or the like having an irregular wave making device to measure the height, period, direction, etc. of the irregular wave to be made. Regarding the mount.

[0002]

[Prior art]

 In this type of measurement, usually multiple capacitive wave height gauge sensors are used, and one part of the sensor is immersed under the water surface and its horizontal position is at each vertex and center of the equilateral triangle. The wavefront spectrum is calculated using a calculation formula that is suitable for each method by measuring the wavefront peak value that changes with time by arranging in a rainy or rainy method. Note that a capacitive wave height sensor is used to form a capacitor that uses a core wire conductor as one electrode and water as the other electrode by sandwiching an insulating coating between water and immersing a capacitive wire with an insulating coating on the wire. The peak value is detected by utilizing the fact that the capacitance changes due to vertical movement. Therefore, if the output of the wave height sensor is converted to capacitance-voltage, a voltage proportional to the height of the wave front can be obtained. Conventionally, the sensors were installed by mounting the wave height sensor on a flat plate with a screw or a vise, and fixing each on a pedestal installed in a test water tank or the like. Further, in some conventional wave height sensors, the mounting hole 84 and the capacitance line 70 are separated from each other in the horizontal position as shown in FIG.

[0003]

[Problems to be solved by the device]

 These have the following drawbacks. Regarding the horizontal movement of the wave height sensor, the wave height sensor was once removed from the flat plate and attached to another position of the flat plate, or the flat plate on which the wave height sensor was attached was moved. Therefore, it is troublesome to install them so that the distance between the wave height sensors becomes a specified value. For example, in the case of the equilateral triangle system, four wave height sensor sensors, each vertex of the equilateral triangle and its center point, are used. It was difficult to change the distance while maintaining the mutual positional relationship. Here, the position of the wave height sensor refers to the position of the capacitance line of the wave height sensor.

The height direction of the wave height sensor on the water surface is adjusted one by one by inserting a spacer or the like between the wave height sensor and the flat plate to which it is attached or between the flat plate and the pedestal. Therefore, the work is troublesome, and it is difficult to make the heights of multiple wave height sensors the same.

In order to reduce the influence of the support rod supporting the capacitance line of the wave height sensor on the wave, in order to change the direction in which the wave comes, loosen the mounting screw of the wave height sensor and attach the mounting screw. Since it is rotated around the center, there is a problem that the horizontal position of the capacitance line moves and the distance to other wave height sensors also changes. Of course, the flat plate with the wave height sensor attached may be rotated horizontally, but it is difficult to change the direction while keeping a distance from other wave height sensors, and it took a lot of work time. The present invention is aimed at the equilateral triangle method in order to eliminate such drawbacks of the prior art.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the wave height meter sensor mount according to the present invention, a sensor mounting board 20 is provided, and a rod 52 is fixed to the upper surface of the sensor mounting board 20 to provide a lifting mechanism.

The sensor mounting board 20 is provided with a central mounting hole 21 and three slits 22 arranged radially at intervals of an angle of 120 degrees around the central mounting hole 21, and in the vicinity of the slit 22, the central mounting hole 21 is provided. A scale 24 indicating the distance from the mounting hole 21 is provided. Further, the elevating mechanism is a gear 58 driven by a motor 51 installed on the upper part and a pinion rack mechanism for elevating the rod 52 up and down by the rotation of the gear 58.

Further, in the wave height sensor 6 of the present invention, a frame 66 and a fixing nut 63 are attached to a central portion of a metal main shaft 68, a spring 71 is attached to a lower end of the main shaft 68, and a lower portion of the main shaft 68 is further attached. Is provided with a U-shaped metal support rod 69, a capacity line 70 is attached between the lower portion of the support bar 69 and the spring 71, and the end 78 of the capacity line 70 is passed through the hollow ridge 79 of the main shaft 68. Wire to the connector 61.

Further, the frame 66 is provided with a slide fixing lever 64 and a fixture 67 for attaching to the sensor mounting board 20. At the position of the main shaft 68 on the side surface of the frame 66, a mark 65 for aligning with the scale 24 of the sensor mounting board 20 is attached.

[0010]

[Action]

 When changing the height of the wave height sensor, the motor 51 is rotated to raise and lower the sensor mounting board 20. At this time, the four wave height measuring sensors 6 mounted on the sensor mounting board 20 move up and down all at once.

When changing the distance between the wave height sensors, the slide fixing levers 64 of the three surrounding wave height sensors surrounding the center height sensor are respectively loosened and slid along the slit 22 to make the scale 24. Adjust the distance with. Further, since the capacitance line 70 is located right below the main shaft 68, when changing the direction of the ceilometer sensor, it can be realized by loosening the fastening of the fixing nut 63 and rotating the main shaft 68.

[0012]

【Example】

 Examples will be described with reference to the drawings. In FIG. 2, a central mounting hole 21 and three slits 22 arranged radially at intervals of 120 degrees around the central mounting hole 21 are provided, and a support hole 23 is provided on an extension line of each slit. Further, in the vicinity of the slit 22, a scale 24 of, for example, 30 to 50 cm indicating the distance from the central mounting hole 21 is provided.

In the embodiment shown in FIG. 3, the arm plates 35 are radially attached to the outer periphery of the disk 30 having the central attachment hole 21 at intervals of 120 degrees. The arm plate 35 is provided with a slit 22 and a supporting hole 23, respectively, and in the vicinity of the slit 22 thereof, a scale 24 of, for example, 30 to 50 cm indicating the distance from the central mounting hole 21 is provided.

In the embodiment shown in FIG. 4, a plate having a circular outer shape is provided with three slits 22 arranged radially at intervals of 120 degrees around the central mounting hole 21. A support hole 23 is provided on the extension line of each slit. Further, in the vicinity of the slit 22, a scale 24 of, for example, 30 to 50 cm indicating the distance from the central mounting hole 21 is provided.

In the embodiment of the lifting mechanism shown in FIG. 5, the linear guides (55a, 55b, 55c) are erected on the lifting pedestals (3a, 3b, 3c). The sensor mounting board 20 is provided with sliding portions (56a, 56b, 56c) in the supporting holes 23 around the sensor mounting board 20 and is slidably mounted on the linear guides (55a, 55b, 55c). A linear guide support plate 57 is attached to an upper portion of the linear guide 55a and an upper portion of the linear guide 55c, and one end of a motor attachment plate 53 assembled in a cross shape with the linear guide support plate 57 is attached to an upper portion of the linear guide 55b. A gear 58 driven by a motor 51 mounted on a motor mounting plate 53 and a rod 52 that moves up and down by the rotation of the gear 58 are provided, and a sensor mounting plate 54 is fixed to the lower portion of the rod 52. The gear 58 and the rod 52 form a pinion rack mechanism.

In the embodiment of the wave height sensor shown in FIG. 6, a metal cap 62 having a connector 61 is attached to the upper portion of a metal spindle 68 which is hollow while leaving a bottom portion, and a frame 66 is fixed to the spindle 68 with a nut. A support rod 69 formed by, for example, a U-shaped metal rod made of stainless steel is fixed to the lower portion of the main shaft 68. As the capacitance line 70, for example, a conductor line having an electrically insulating coating such as Junflon wire is used. The capacitance line 70 is folded back at the lower part of the support rod 69 and stretched like a bowstring to the lower end of the main shaft 68 via a spring 71. A capacitance line terminal 78, which is a combination of two attached and reciprocated cables, is wired from the guide hole 72 to the connector 61 through the hollow portion 79. Further, on the side surface of the frame 66, an indicator 65 is attached to the position of the main shaft 68 to align with the scale 24 of the sensor mounting board 20. Instead of attaching the pointing device 65, a line or other mark may be provided on the side surface of the frame 66. Further, the frame 66 is provided with a slide fixing lever 64 and a fixture 67.

When the maximum amplitude of the wave to be measured is 40 cm, for example, the vertical dimension of the support rod 69 is about 50 cm. The length of the portion where the capacitance line 70 is stretched like a chord of the bow is the maximum amplitude of the measurable wave. Therefore, it is needless to say that the vertical dimension of the support rod 69 is not limited to the above-mentioned about 50 cm and is determined by the maximum amplitude of the wave to be measured.

In FIG. 1, the pedestal plates (2a, 2b, 2c) are horizontally attached to the upper parts of the pedestals (1a, 1b, 1c), and the lifting pedestal (3a, 3a, 3b, 3c), and columns (4a, 4b, 4c) are attached to the upper portions of the pedestal plates (2a, 2b, 2c). Further, the other end of the motor mounting plate 53 is mounted on the upper portion of the column 4b. Then, the four wave height sensors 6 are mounted in the central mounting hole 21 and the three slits 22 of the sensor mounting board 20 as in the mounting example of FIG. 7, and are fixed by tightening with the slide fixing lever 64 and the fixing tool 67. To do.

[0019]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. Since the wave height sensor can be easily fixed to the central mounting hole 21 or the slit 22 of the sensor mounting board 20 by the slide fixing lever 64 and the fixing tool 67, the work of attaching and detaching can be facilitated.

When changing the distance between the wave height sensors, it is sufficient to slide the three surrounding wave height sensors along the slit 22 and use the scale 24 to adjust the distance. Not only is it simple, but it is easy to change the distance while maintaining the positional relationship between the vertices of the equilateral triangle and their center points.

When changing the height of the wave height sensor, if the motor 51 is rotated and the sensor mounting board 20 is moved up and down, the four wave height sensors 6 move up and down at the same time, so the work is simple and quick. it can.

When changing the direction of the wave height sensor, the fixing nut may be loosened and the main shaft may be rotated. At this time, since the support rod 69 rotates about the capacitance line 70 as an axis, the direction of the crest meter sensor can be changed without changing the position of the capacitance line, that is, the horizontal position of the sensor, so that the work can be simplified.

As described above, the work of attaching / detaching the wave height sensor and changing the measurement conditions such as the mounting distance or the direction or height between the wave height sensors can be easily performed. Therefore, when measuring the wave direction spectrum in a test water tank equipped with a wave generator, a new test is required even if the test conditions such as the height or period of the wave to be created or the water depth of the test water tank are changed, not to mention preparatory work. The work of setting the measurement conditions according to the conditions can be done in a short time, and the measurement efficiency is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of the sensor mounting board.

FIG. 3 is a perspective view showing a second embodiment of the sensor mounting board.

FIG. 4 is a perspective view showing a third embodiment of the sensor mounting board.

FIG. 5 is a perspective view of an essential part showing a lifting mechanism of a sensor mounting board.

FIG. 6 is an exploded perspective view showing an embodiment of a wave height sensor.

FIG. 7 is a perspective view of a main part showing an example of mounting a wave height sensor.

FIG. 8 is a perspective view of a conventional ceilometer sensor.

[Explanation of symbols]

 6 Crest height sensor 20 Sensor mounting board 22 Slit 24 Scale 51 Motor 52 Rod 53 Motor mounting plate 55a, 55b, 55c Linear guide 57 Linear guide support plate 61 Connector 63 Fixing nut 64 Slide fixing lever 65 Pointer 66 Frame 67 Fixing tool 68 Spindle 69 Support rod 70 Capacity line 71 Spring

Claims (1)

[Scope of utility model registration request] (1) A gear (58) driven by a motor (51) installed on the upper part and a rod (52) which moves up and down by the rotation of the gear (58). (B) A central mounting hole (21) and three slits (22) arranged radially at intervals of 120 degrees around the central mounting hole (21) are provided, and the slits (22) are provided in the vicinity of the slits (22), respectively. A sensor mounting board (20) provided with a scale (24) indicating the distance from the central mounting hole (21) is fixed to the lower part of the rod (52). (C) A frame (66) is attached to a metal main shaft (68) with a fixing nut (63), a spring (71) is attached to a lower end of the main shaft (68), and a U-shaped portion is attached to a lower portion of the main shaft (68). The metal support rod (69) is provided, the capacitance line (70) is provided between the lower portion of the support rod (69) and the spring (71), and the capacitance line terminal (78) is connected to the guide hole (72). ) Through the hollow part (79) of the main shaft (68) to the connector (61) and slide the wave height sensor (6) into the central mounting hole (21) and each slit (22) of the sensor mounting board (20). Attach with the fixing lever (64) and the fixing tool (67). A wave height meter sensor mount of a wave direction spectrum measuring device having the above-mentioned configuration.