Portable three-component submarine electric field meter

Abstract

The invention discloses a portable three-component submarine electric field meter which comprises an instrument cabin, an electrode, a hook, an underwater acoustic probe, a pressure-resistant glass cabin ball, a signal control circuit, a data acquisition circuit, a watertight connector, a power supply assembly, a base, a support beam and an uncoupling mechanism. The invention is mainly used for submarine electric field observation and is suitable for offshore oil and gas exploration and geological survey. The submarine electric field measurement function of the portable three-component submarine electric field meter is centralized in the single cabin, and a long measurement pole arm of a traditional electric field meter is not needed. Problems of large spatial size, inconvenience in putting and recycling and the like of a prior submarine electric field detection device are solved.

Description

technical field [0001] The invention belongs to the field of geophysical measurement, in particular to the field of marine survey, and relates to a portable three-component submarine electric field meter. Background technique [0002] As an effective geophysical method, marine electromagnetic detection technology plays an important role in marine resource exploration, marine scientific research and monitoring of marine military activities, and has become an indispensable supporting technology. The submarine electromagnetic field instrument is the basis of marine electromagnetic detection, and its comprehensive performance is one of the technical bottlenecks restricting the actual application effect. [0003] Since there is no physical sensor that can directly measure the electric field strength vector, the electric field is usually calculated by measuring the potential difference between two points. In theory, increasing the distance between electrodes can improve sensitivi...

AI Technical Summary

Problems solved by technology

One of the solutions is to reduce the number of floating balls and pressure-bearing devices, such as the single-chamber ball scheme adopted in patents 201120236291.6, 201510494522.6 and 201610460556.8, but the measurement distance cannot be reduced, and the improvement of construction difficulty is very limited; another solution is to sacrifice At the expense of electric field detection sensitivity, a short pole distance solution is adopted. For example, a small collection station is used in patent 201210449479.8, and the long electrode arm is removed. However, the traditional potential measurement technology solution is still used, and the electric field detection sensitivity is greatly reduced.

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