CN103076008A - Counter-type sea wave length measuring device - Google Patents

Abstract

The invention discloses a counting wave wavelength detection device in the technical field of wave wavelength measurement. The invention includes a floating ball, a steel wire rope, a rotating shaft, a gear mechanism, a counter, and an electronic circuit; the floating ball floats on the sea surface, and the steel wire rope connects the floating ball with the driving wheel in the gear box, and the driving wheel connects the reversing wheel and the rotating contact through a connecting rod There are two single-pole double-throw openings in the circuit; the sea water drives the floating ball to undulate, and the connected driving gear rotates reciprocatingly, and the rotating contact wheel connects the circuit every half rotation, and when the driving wheel moves in the opposite direction, the reversing wheel will power the circuit Reverse connection makes the counter in the circuit count again; compare the value of each counter in the same cycle to get the maximum value point and minimum value point, the position of the peak and the trough can be known, and the wavelength of the wave is obtained; For problems that are difficult to measure due to changes, the device has an ingenious structure, and the measuring mechanism is at sea, which is stable and reliable, and can approximate and track wave wavelengths in real time.

Description

Counting Wave Wavelength Measuring Device

technical field

The invention belongs to the technical field of ocean wave wavelength measurement, in particular to a counting type ocean wave wavelength measurement device.

Background technique

The wavelength and height of waves in the ocean are always changing. However, there are many devices for using waves, such as wave power generation devices, but it is impossible to determine the wavelength or follow the wavelength change. Existing methods for measuring wavelengths are simple and complex, such as radar measurement or GPS positioning, taking pictures of the sky through satellites, etc., and analyzing the photos to calculate the wavelength. However, this method requires relatively high technological content, and the most important thing is that it cannot monitor and measure changes in wavelength in real time. However, there are still relatively few devices for measuring wave wavelength in the true sense, and almost none of them can be used in practice. The device of the present invention can fill in the gaps in current ocean wave wavelength measurement methods and devices, and solve some difficulties, such as: 1. Poor measurement accuracy; 2. Real-time tracking and measurement cannot be performed; 3. The structure of the measuring device is complicated.

Contents of the invention

Aiming at the shortcomings mentioned in the above background technology that the existing ocean wave wavelength measurement device is complex in structure and unable to measure in real time, the present invention proposes a counting type ocean wave wavelength measurement device.

The technical scheme of the present invention is a counting wave wavelength measuring device, which is characterized in that the device includes a float, a gear box, a steel frame structure, a steel wire rope, a rotating shaft, a counter, and an electronic circuit.

The floating ball floats on the sea surface, and the gear mechanism and electronic circuit are located in the gear box on the steel frame structure on the sea surface; the floating ball is connected to the driving wheel through the steel wire rope, and the driving wheel is connected to the rotating contact wheel and the reversing wheel, and drives it to rotate. The electronic circuit has two single-pole double-throw switches. When the rotating contact wheel rotates through two small pulleys, it contacts the contact track and connects the circuit; the contact 19 is inserted into the reversing slot in the reversing gear, and there are 17 and 17 in the reversing slot. 18 two contacts.

The steel frame structure is installed on the sea surface in the direction of wave propagation, and its length should be greater than 1.5 times the maximum wave wavelength in this sea area. A row of floating balls is suspended at equal intervals on the sea surface, and connected to the gear box above the steel frame structure through steel wire ropes. driving wheel.

The rotating contact wheel is connected to the driving wheel through a connecting rod. The structure of the rotating contact wheel includes: a rotating contact wheel, a small pulley, and a circuit contact track; when the rotating contact wheel rotates, the small pulley rolls on the contact track, the circuit conducts, and the rotation process In, every half cycle, it is turned on once, and it can also be extended to be turned on once every quarter cycle; each contact makes the circuit conduction, and the counter counts once.

There are four groove structures in the circuit reversing wheel, and four connecting rods are inserted into the grooves, wherein two opposite connecting rod heads are circuit contacts 19, and the left and right of these two grooves are respectively circuit contacts 17 and 18 .

The electronic circuit consists of a counter and two SPDT switches.

Beneficial effects of the present invention:

The counting wave wavelength measurement device proposed by the present invention is a new simple and approximate wavelength measurement device, which uses the principle of measuring the wave height change to find the wave peak and trough of the wave, and then determines the wavelength. The fluctuation displacement of the floating ball is converted into the number of rotations of the pulley, and the number of rotations of the pulley is recorded by the counter in the electronic circuit. Compared with the value of each counter in the same counting cycle, the maximum point and minimum point are obtained, and the wave peak can be known. The position of the trough can also tell the wavelength of a wave.

The overall structure of the device of the present invention is simple and stable, and the mechanical power part and the electronic circuit part are all located in the gear box on the steel frame, without contact with sea water, and the stability and reliability of the device are guaranteed. The driving wheel rotates, the connecting rod rotates in the groove, and the contact 19 contacts 17 or 18, which drives the reversing wheel to rotate. Now the circuit conduction, when the reverse rotation of the reversing wheel, the contact 19 of the connecting rod contacts 18 or 17, so that the power supply is reversely connected to the circuit. The circuit reversing wheel effectively solves the problem of rotation of the driving wheel in both positive and negative directions, and determines the start point and end point of counting. Two single-pole double-throw switches can reverse the direction of power supply, so that the floating ball counts separately during the rising and falling process, and compares the values of each counter in the same cycle to obtain the adjacent maximum and minimum points. At the same point as the adjacent three numerical values, the distance is calculated, and the average value of the three is taken as the wavelength, which improves the measurement accuracy and this measuring device can measure the wavelength change in real time.

Description of drawings

Figure 1 is the overall structure diagram of the counting wave wavelength measuring device.

Fig. 2 is a side view of the gearbox structure of the counting wave wavelength measuring device.

Fig. 3 is a side view of the rotating contact wheel of the counting wave wavelength measuring device.

Fig. 4 is a side view of the reversing wheel of the counting wave wavelength measuring device.

Fig. 5 is an electronic circuit structure diagram of a counting wave wavelength measuring device.

Symbols in the figure: 1-floating ball; 2-gear box; 3-steel frame structure; 4-wire rope; 5-driving wheel; 6-rotating shaft; 7-connecting rod; 8-contact track; 9-small pulley; Rotary contact wheel; 11-circuit wire; 12-reversing wheel; 13-slot structure; 14-counter; 15-power supply; 16-SPDT switch.

Detailed ways

The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

The problem to be solved by the present invention is that the structure of the existing ocean wave wavelength measuring device is complex and cannot be measured in real time and the current situation.

The counting wave wavelength measuring device consists of a floating ball 1, a gear box 2, a steel frame structure 3, a steel wire rope 4, a rotating shaft 6, a counter 14, and an electronic circuit. The floating ball 1 floats on the sea surface, the gear mechanism and electronic circuit are located in the gear box 2 on the steel frame structure 3 on the sea surface; the floating ball 1 is connected to the driving wheel 5 through the steel wire rope 4, and the driving wheel 5 is connected to the rotating contact wheel 10 and the reversing wheel 12 , and drive it to rotate. The electronic circuit has two single-pole double-throw switches 16, and the rotating contact wheel 10 contacts the contact track 8 when rotating through the two small pulleys 9, and connects the circuit. The contact 19 is inserted into the reversing groove 13 in the reversing gear 12, and there are two contacts 17 and 18 in the reversing groove 13.

In this device, the floating balls are arranged at equal intervals L. When the floating ball 1 moves up and down with the waves, the driving wheel 5 rotates, and the rotating contact wheel 10 and the reversing wheel 12 are driven to rotate through the connecting rod 7. When the rotating contact wheel 10 rotates, The small pulley 9 slides intermittently on the contact track 8. At this moment, the circuit is turned on, and the intermittent time is half a rotation cycle or a quarter rotation cycle. The counter 14 counts once every time the circuit is turned on. When the reversing wheel 12 rotates, the connecting rod 7 drives the contact 19 to contact with 17 or 18, and the circuit is conducted. When the driving wheel 5 rotates in the opposite direction, the connecting rod 7 drives the contact 19 to contact with 18 or 17, and the reverse rotation , at this time the circuit power supply is also turned on in reverse, and counts in reverse.

In the device, the waves move undulatingly, and the pulley rotates in both positive and negative directions. Through the action of the single pole double throw switch 16 in the circuit, the power supply 15 is turned on positively and negatively, and the counter 14 counts positively and negatively, which distinguishes the up and down motion process of the sea waves, and is convenient for counting and determining a motion cycle.

This device uses the change of wave height to compare the count value to determine the position of the wave peak and trough at the same time, and then obtain a wavelength. The adjacent maximum two count values calculate a wavelength data, and the adjacent minimum two One count value calculates one wavelength data, three adjacent equal count values calculate one wavelength data, and the average value of the three data is the wavelength value.

This device is cleverly designed to calculate the wavelength by measuring the wave height. The overall structure of the device is simple, and important mechanical devices and electronic circuit devices are not in contact with sea water, thereby improving the reliability of the device. Through the rotation of the pulley, the counter counting method can effectively obtain the wave wavelength. Compared with the traditional method, the workload is low and it is easy to implement. Moreover, it can track wavelength changes and measure wavelengths in real time, and has a wide range of applications, providing wavelength references for other wave utilization devices.

Claims (5)

1. The counting wave wavelength measuring device is characterized in that the device includes a floating ball (1), a gear box (2), a steel frame structure (3), a steel wire rope (4), a rotating shaft (6), a counter (14), an electronic circuit; the floating ball (1) floats on the sea surface, and the gear mechanism and electronic circuit are located in the gear box (2) on the steel frame structure (3) on the sea surface; the floating ball (1) is connected to the driving wheel ( 5), the driving wheel (5) connects the rotating contact wheel (10) and the reversing wheel (12), and drives it to rotate; The electronic circuit has two single-pole double-throw switches (16), and the rotating contact wheel (10) contacts the contact track (8) when rotating through two small pulleys (9), and the circuit is connected; the contact A is inserted into the reversing gear ( 12) in the reversing groove (13), there are 17 and 18 two contacts in the reversing groove (13). 2. Counting wave wavelength measuring device, characterized in that the steel frame structure (3) is installed on the sea surface along the direction of wave propagation, and its length should be greater than 1.5 times the maximum wave wavelength in this sea area, and a row of floating floats is placed at equal intervals on the sea surface. The ball (1), is connected by a wire rope (4) to the drive wheel (5) in the gearbox (2) located above the steel frame structure (3). 3. A counting wave wavelength measurement device, characterized in that the rotating contact wheel (10) is connected to the driving wheel (5) through a connecting rod (7), and the structure of the rotating contact wheel includes: rotating contact wheel (10), small pulley (9 ), the circuit contacts the track (8); when the rotating contact wheel (10) rotates, the small pulley (9) rolls on the contact track (8), and the circuit is turned on. During the rotation, it is turned on once every half cycle, It can also be expanded to be connected once every quarter cycle; each contact makes the circuit conduction, and the counter (11) counts once. 4. The counting wave wavelength measurement device is characterized in that there are four groove structures (13) in the circuit reversing wheel (12), and four connecting rods (7) are inserted into the grooves, and two of the opposite connecting rods The head is a circuit contact 19, and the left and right are respectively circuit contacts 17 and 18 in these two grooves. 5. The counting wave wavelength measuring device is characterized in that the electronic circuit is composed of a counter (14) and two single-pole double-throw switches (16).

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