The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2025
Filed:
Nov. 17, 2024
Hefei General Machinery Research Institute Co., Ltd., Anhui, CN;
Abstract
Embodiments of the present disclosure provide a method for calibrating a sound velocity applied to a multi-layer variable thickness structure, comprising: constructing a planar multi-layer medium stacked structure and determining a sound velocity of each layer of medium material in the planar multi-layer medium stacked structure; establishing a curved multi-layer medium stacked structure, the curved multi-layer medium stacked structure being arranged with a plurality of discrete elements; at the same time, establishing a fluctuation equation for determining a sound pressure value of each of the plurality of discrete elements; establishing a loss function between the sound pressure value of each discrete element calculated by the fluctuation equation and a measured sound pressure value of each discrete element; performing a gradient descent calculation on the sound pressure value of each discrete element based on the loss function, iteratively updating to obtain a sound velocity value being used as a weighting parameter in the plurality of discrete elements until a minimum value of the loss function is obtained, wherein the sound velocity value is an optimal speed value.