Online measuring and sensing system of oil pollution volume of hydrographic shipborne sea area

Abstract

The invention relates to an online measuring and sensing system of the oil pollution volume of a hydrographic shipborne sea area. A microwave source is sequentially connected with a coupler, an impedance matcher, an attenuator, a waveguide cavity and a medium bin in the waveguide cavity; a function generator is connected with the coupler; a measuring line in the waveguide cavity comprises four photonic crystal probes which are controlled by a controllable digital cursor and arranged on the controllable digital cursor; the lower end of the medium bin is provided with a drain valve; a telescopic boom is formed by the microwave source, the coupler, the function generator, the impedance matcher, the attenuator, the waveguide cavity and the medium bin; the four photonic crystal probes are connected with a digital standing wave ratio (SWR) measuring and calculating system which is connected with a system controller, and the system controller controls the controllable digital cursor. The invention has low cost and timely starting and can be mounted on various hydrographic ships. Compared with aerial remote reconnaissance, an online medium sensor system using the SWR measurement of the photonic crystal probes as a theory improves the precision by two orders of magnitude for detecting an oil-to-water volume ratio of the oil-polluted sea area with a known test elemental area.

Description

technical field [0001] The invention belongs to the measurement of the volume ratio of two mutually immiscible liquids in micro-photonic electronic sensing technology, and in particular relates to an on-line measuring sensing system for measuring the volume of oil pollution in sea areas carried by ships. Background technique [0002] To minimize the harm of oil pollution in sea areas, it is necessary to improve the monitoring equipment and improve the management level. Once an oil pollution incident occurs, the detection equipment should be activated immediately for quantitative detection to provide accurate data for the emergency plan. In recent years, my country's coast has been severely damaged by ships Due to the lack of a comprehensive oil pollution compensation mechanism, sea areas are often in an embarrassing situation without quantitative claims for damages caused by oil spill pollution. The maritime department urgently needs equipment to measure the volume of marine o...

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Problems solved by technology

[0002] To minimize the harm of oil pollution in sea areas, it is necessary to improve the monitoring equipment and improve the management level. Once an oil pollution incident occurs, the detection equipment should be activated immediately for quantitative detection to provide accurate data for the emergency plan. In recent years, my country's coast has been severely damaged by ships Due to the lack of a comprehensive oil pollution compensation mechanism, sea areas are often in an embarrassing situation without quantitative claims for damages caused by oil spill pollution. The maritime department urgently needs equipment to measure the volume of marine oil pollution as a quantitative compensation for the "International Regulations on Compensation for Oil Pollution in Sea Areas" and basis for processing

Domestic marine oil pollution mainly uses modern near-infrared spectroscopy (NIR) analysis technology to identify oil spills, and uses pattern recognition and other information processing technologies to calculate its quantitative value. The degree of online detection is low. Foreign countries have detected marine oil pollution for nearly ten years It mainly focuses on the research of measuring the thickness of the polluted oil film with high-end microwave radar, and the cost of detection equipment composed of this principle is very high

The accuracy and precision of calculating the polluted area by satellite telemetry assessment is low

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