Elbit Systems has filed a patent for a seismic source apparatus that can be maneuvered by a vehicle over terrain. The apparatus includes a seismic source unit that generates seismic waves while the vehicle is in motion, with a motion de-coupling assembly to prevent vibrational energy from transferring to the vehicle or source platform. The motion of the seismic source unit is independent of the vehicle’s motion and can move along or about selected axes within a determined range. GlobalData’s report on Elbit Systems gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Elbit Systems, AR/VR head-up displays was a key innovation area identified from patents. Elbit Systems's grant share as of September 2023 was 51%. Grant share is based on the ratio of number of grants to total number of patents.

Seismic source apparatus for generating seismic waves while in motion

Source: United States Patent and Trademark Office (USPTO). Credit: Elbit Systems Ltd

A recently filed patent (Publication Number: US20230314643A1) describes a seismic source apparatus that can generate seismic waves while in motion. The apparatus includes a seismic source unit mounted on a source platform, which can be maneuvered by a vehicle over a terrain. The seismic source unit consists of at least one movable mass and an energy transfer element that maintains continuous contact with the terrain while the vehicle is in motion. The apparatus also includes a motion de-coupling assembly that reduces or prevents vibrational energy from being transferred to the source platform or vehicle. This allows the motion of the seismic source unit to be independent of the motion of the vehicle and/or source platform, along or about at least one selected axis within a determined range.

The energy transfer element in the apparatus is a source drum that rotates while moving on the terrain. The seismic source unit can include one or more masses, such as a double-ended piston or an electromechanical unit. Additionally, the seismic source unit can have a hammer and an anvil coupled with the energy transfer element, with the hammer striking the anvil. The apparatus can be mounted on a towed cart or various types of vehicles, such as manually maneuvered, remotely maneuvered, independently maneuvered, or towed vehicles or carts.

The patent also describes a method for generating a seismic map of a terrain region using the seismic source apparatus. The method involves maneuvering the seismic source unit over the terrain by a moving platform or vehicle, generating seismic waves in a direction perpendicular to the terrain, and preventing vibrational energy from being transferred to the moving platform or vehicle using the motion de-coupling assembly. Seismic responses received from the terrain are detected and optionally recorded over time, allowing for the determination of the underground structure of the terrain and the creation of a seismic map.

The method for detecting seismic responses can involve using seismic detection units, which may include a laser source. The laser source can be a multibeam laser source that illuminates an area of interest on the terrain. The detection process can involve detecting seismic waves that are reflected, diffracted, or interact with objects, open spaces, and modulations in ground composition.

Overall, this patent presents an innovative seismic source apparatus and method for generating seismic maps of terrains, allowing for improved understanding of underground structures.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.