A marine well type measuring device and measuring method

Abstract

The invention discloses a marine well-type measuring device and a measuring method, which comprises a measuring well, a lifting column, a transmission mechanism and an automatic control system. Valve seat, the inside of the valve seat is hollowed out in the shape of a rounded table, and the inside of the measuring well communicates with the outside of the bottom of the ship through the hollowed out shape of the rounded table; the lifting column is vertically arranged in the measuring well, and the transmission mechanism is used to drive the lifting The column is set up and down in the vertical direction in the measurement enclosure. The bottom of the lifting column is equipped with a valve core. A seat on which a measuring device is detachably mounted. It can meet the automatic measurement of various ships, simplify the complexity, greatly optimize the measurement efficiency and improve the measurement accuracy.

Description

technical field [0001] The invention belongs to the field of measuring devices, and is specifically applied to ship measuring, in particular to a marine well-type measuring device and a measuring method. Background technique [0002] Underwater survey is a specific survey in engineering survey, which measures the plane position and elevation of rivers, lakes, reservoirs, harbors and offshore bottom points, and is used to draw underwater topographic maps. The main content is to establish a control network on land and carry out underwater terrain surveying and mapping. Underwater terrain surveying and mapping includes bathymetry point positioning, bathymetry, water level observation and mapping. The methods of bathymetry point positioning include cross-section cable method, theodolite or plate instrument front intersection method, sextant resection method, total station speed measuring instrument polar coordinate method, radio positioning method, underwater acoustic positionin...

AI Technical Summary

Problems solved by technology

When measuring with this measurement method, the measurement equipment is easy to shake, and it will cause relative motion with the hull, so that the data of the motion compensation instrument on the ship cannot be used for the calibration of the measurement equipment, resulting in low accuracy of the measurement data and the failure of the measurement equipment. Fragile, not suitable for measurement work in rough sea conditions

In addition, this measurement method also requires a large amount of manpower, and there are certain potential safety hazards.

[0004] In addition, there is another way to fix the measuring device on the bottom of the ship. In this way, the measuring device is immersed in water for a long time, which will easily cause the measuring device to be corroded and damaged, and the maintenance is difficult. It needs to be opened to the dock for maintenance, and the maintenance time is long. Difficult and cost a lot of time and money

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