A bottom detection device

Abstract

The invention relates to the technical field of object position detection, and particularly to a bottoming detection apparatus. The bottoming detection apparatus comprises a sensor assembly and is characterized in that a secondary bump mechanism capable of sliding along the axis of the sensor assembly is sleeved on the lower portion of the sensor assembly; the sensor assembly comprises a sensor capable of bump detection; the secondary bump mechanism comprises a bump part and at least two sliding rods, the outer side of the sensor assembly is provided with sliding tracks matching the sliding rods; the lower ends of the sliding rods are fixedly connected with the bmp part; the upper ends of the sliding rods are inserted into the sliding tracks; and the sensor capable of the dump detection is an acceleration transducer. The bottoming detection apparatus provided by the invention has the following advantages: the lower end of the sensor assembly can bump against the secondary bump mechanism so as to obtain clear abrupt change signals for accurately determining whether bottoming exists so that interference caused by such factors as material viscosity, dielectric constant changes, or a loose and soft bottom and the like are eliminated.

Description

technical field [0001] The invention relates to the technical field of level detection, in particular to a bottom detection device. Background technique [0002] In industrial production, oil and gas field exploitation, and marine operations, it often involves detection of the bottom of rock formations, pools, oil tanks, etc. where the seabed or liquid materials are located, in order to grasp the depth of the material or confirm whether the detector has touched the bottom, or to operate in the ocean to determine the depth of the seabed. After the sensor enters the liquid material, it is necessary to know whether the sensor has reached the bottom of the liquid material. In many cases, due to the complexity of the liquid material, it is not easy to accurately detect the bottoming state. For example, in the process of oil extraction, what is collected is a mixture composed of crude oil, water, and sediment. After the mixture is injected into the storage tank, the medium in the...

AI Technical Summary

Problems solved by technology

This detection method is only suitable for liquid materials with different dielectric constant layers, and in the case of no bottoming, the dielectric constant mutation phenomenon can also occur, resulting in inaccurate bottoming measurement

The existing technology can also use the acceleration sensor to measure the bottoming state, but the pure acceleration sensor is more suitable for the medium with low viscosity like water and the hard bottom state, and can obtain reliable measurement state, but when the viscosity of the liquid material is high Or when the bottom is soft, because the impact felt by the sensor is not large, it is prone to false detection and false alarm, and a soft sediment layer will appear at the bottom of the general container, so it is difficult for ordinary acceleration sensors to accurately measure the bottoming reaction

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