Optical pump magnetometer suitable for UAV

Abstract

The invention provides an optical pump magnetometer suitable for a UAV. The optical pump magnetometer comprises an optical pump probe sensor, a three-component fluxgate sensor, a host and a GPS. The GPS is connected to a host through a line. The three-component fluxgate sensor is connected with the host through an A / D converter. The optical pump probe sensor is connected with an FPGA frequency measuring unit through a tracking loop module. The FGPA frequency measuring unit is connected with the host through the line. The host includes an ARM Processor and input and output devices. According tothe invention, the compact and highly integrated ARM embedded central control unit and the FPGA frequency measuring unit are combined, so that the device volume and power consumption are greatly reduced; and the locked loop assisted capture technology based on an embedded controller is adopted, without requiring additional capture circuit, the on-chip resources of the embedded processor are madefull use of, the system complexity is reduced and the cost is saved.

Description

technical field [0001] The invention belongs to the field of surveying and mapping equipment, and in particular relates to an optical pump magnetometer suitable for unmanned aerial vehicles. Background technique [0002] In recent years, there have been more and more aerial exploration tasks, but because aerial exploration generally uses military aircraft as the carrier, the measurement cost is relatively high, and manual operation is required, and the safety is relatively poor. If unmanned aircraft are used for aerial exploration, Not only can the cost be saved, the safety of the survey measurement can be improved, but also the high-precision magnetic field measurement in a small area can be carried out. [0003] At present, the mainstream optical pump magnetometers on the market have defects such as cumbersome circuit design, insufficient processor working capacity, and bulky size, which limit their application in space-constrained fields such as UAV aeronautical magnetic ...

AI Technical Summary

Problems solved by technology

It can be seen that due to the inherent defects of analog circuits, the system inevitably has problems such as complex circuits, susceptibility to interference, and difficulty in flexible control of parameters.

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