Dual-clock ocean bottom seismograph data acquisition device and method

Abstract

The invention provides a dual-clock submarine seismograph data acquisition device and method. The device comprises a power supply module, a storage module, a control module, an atomic clock, a crystaloscillator clock, a data acquisition module, a hydrophone, and a seismograph. According to the invention, by simultaneously adopting two clocks with different precisions, namely an atomic clock and acrystal oscillator clock, the crystal oscillator clock with low precision and low power consumption is used in daily acquisition work, the atomic clock is started only at a set time, the time of theatomic clock and the time of the crystal oscillator clock are compared, the errors of the atomic clock and the crystal oscillator clock are recorded, and the crystal oscillator clock is calibrated, sothat the use power consumption of the atomic clock can be greatly reduced through the collecting method, the clock precision of the collection recording system is improved, the low system power consumption can be maintained, the dual-clock ocean bottom seismograph data acquisition device has high-precision clock information and low power consumption, and the detection capability of the ocean bottom seismograph is enhanced.

Description

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AI Technical Summary

Benefits of technology

The technical effects of this innovation include improved timing performance for collecting digital seismic images with less energy usage than traditional methods while also reducing costs associated therewith. By utilizing both precise clocks (atomic or crystalline) together at once during each day's operation, it becomes possible to achieve higher clock accuracies without consuming too much electrical current from an external source like another oscillator. This results in reduced battery life requirements and increased efficiency when used on mobile devices such as smartphones.

Problems solved by technology

This patents describes two technical problem addressed in this patented technology: how to efficiently detect small structures called sea floor sedimentary rocks (SSM) without consuming too much energy or requiring expensive equipment that requires frequent maintenance.

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