A method of measuring subglacial water depth

A measurement method and ice layer technology, applied in the direction of measuring devices, liquid/fluid solid measurement, instruments, etc., can solve problems such as the difficulty of digging through the ice layer to measure water depth, facilitate analysis and processing, reduce measurement time, The effect of reducing the accident rate

Active Publication Date: 2019-09-27
HARBIN ENG UNIV
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Problems solved by technology

[0003] At present, when ultrasonic or pressure sensors are used to measure the water depth on the ice surface, both of them also need to drill through the ice layer. Due to the harsh external environment in the polar region, it is extremely difficult to drill through the ice layer to measure the water depth.

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  • A method of measuring subglacial water depth
  • A method of measuring subglacial water depth
  • A method of measuring subglacial water depth

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing:

[0032] Such as figure 1 , 2 As shown, the basic structure of the ice surface percussion device of the present invention includes: a round table (1), a rotating shaft (2), a rocking handle (3), a spring baffle (4), a spring expansion plate (5), a cam And hit the ball (6).

[0033] image 3 , 4 Respectively, the right view and the left view of the circular platform (1) and the rotating shaft (2).

[0034] Figure 5 , 6 Respectively, the right view and the left view of the crank handle (3).

[0035] Figure 7 It is the schematic diagram of the spring baffle (4).

[0036] Figure 8 It is a schematic diagram of the spring expansion plate (5) and a partial detail drawing of the expansion plate.

[0037] Figure 9 It is the schematic diagram of cam and percussion ball (6).

[0038] Described rocking handle (3), cam and percussion ball (6) are fixedly connected by rota...

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Abstract

The invention discloses an under-ice water-depth measuring method, and belongs to the field of underwater sound. Vibration signals are firstly generated by striking a shot, the signals which arrive atan ice layer wave detector via the ice surface are first triggering signals, secondly, part of the signals which are reflected by the lower surface of ice and enter the wave detector are second ice layer reflection signals, and another part of the signals which are refracted by the lower surface of the ice layer and arrive at seawater, are transmitted in the ice layer through the reflection of the sea bottom and the refraction of the lower surface of the ice layer, and finally arrive at the ice layer wave detector are third sea bottom reflection signals. By analyzing the collected data, the time interval between the time for the interface of the sea bottom to reflect the signals and the time for the ice surface to reflect the signals is determined, and thus the water depth is determined according to the sound velocity in water. Compared with an existing method of chiseling the ice layer to measure the water depth, the under-ice water-depth measuring method can greatly shorten the timefor measuring outdoors under a bad polar region environment, and the accident rate caused when working personnel work outdoors for a long time is greatly reduced.

Description

technical field [0001] The invention belongs to the field of underwater acoustics, and in particular relates to a method for measuring water depth under ice. Background technique [0002] In recent years, my country's ocean-related undertakings have developed rapidly, and various hydrological parameters have become indispensable factors in the development. Among them, the measurement of the depth of the underwater submersible is of great significance to the development of naval equipment and marine exploration and development. With the development of electronic technology and sensor technology, people have higher and higher requirements for real-time and accurate measurement of water depth. Ultrasonic or pressure sensors are two methods of underwater depth measurement. The former uses acoustic wave echo technology to measure water depth, and the latter uses hydrostatic pressure in water to convert water depth. Each has its own advantages and disadvantages. Ultrasonic measur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/296
Inventor 陈文剑殷敬伟王珲郭龙祥孙辉高家辉于洋
Owner HARBIN ENG UNIV
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