Sound velocity measuring device and method for seabed exploration and sonar detection
A technology of measuring device and measuring method, which can be applied to measuring device, measuring propagation speed, measuring ultrasonic/sonic/infrasonic waves, etc., and can solve problems such as limited application scope, difficulty in obtaining high-precision measurement results, and limitations.
Active Publication Date: 2022-08-05
TIANJIN UNIV
View PDF11 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The existing indirect measurement is limited by the sound velocity measurement data obtained by the existing direct measurement used for fitting, and the formula itself cannot be traced to the sound velocity definition, and the scope of application is limited; the existing direct measurement ultrasonic flight distance and calibration measurement distance Strict consistency is difficult, and it is difficult to obtain high-precision measurement results
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0042] It will be understood that the terms "first", "second" and the like used in this application may be used herein to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish a first element from another element. For example, a first xx script could be referred to as a second xx script, and similarly, a second xx script could be referred to as a first xx script, without departing from the scope of this application.
[0043] First, an application scenario of the solution of the present invention is...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention is suitable for the technical field of marine surveying and mapping, and provides a sound velocity measuring device and method for seabed exploration and sonar detection. The sound velocity measuring device comprises a light source module used for emitting a first difference frequency light beam; the ultrasonic transducer is used for transmitting sound waves to the to-be-measured medium area; the light splitting module is used for enabling the second difference frequency light beam and the third difference frequency light beam to pass through a to-be-measured medium area in parallel; the distance measuring module is used for measuring the distance between the second difference frequency light beam and the third difference frequency light beam; the time measuring module is used for measuring the propagation time of the sound wave on the distance; and the speed calculation module is used for calculating the sound velocity according to the distance and the propagation time. According to the invention, a self-beat frequency acousto-optic effect is taken as a basic principle, flight time and distance measurement is realized, traceable, low-cost and high-precision stable sound velocity measurement is completed, and the accuracy of sound ray correction work in seabed exploration and sonar detection application is further improved.
Description
technical field [0001] The invention belongs to the technical field of marine surveying and mapping, and in particular relates to a sound velocity measuring device and method for seabed surveying and sonar detection. Background technique [0002] Oceanographic surveying and mapping is a general term for the measurement and charting of ocean water bodies and seabeds. The measurement parameters of oceanographic surveying and mapping include various information and data such as atmosphere, hydrology, and seabed topography, landform, sediment, gravity, and magnetism. In oceanographic mapping, the relationship between velocity and time difference is mainly used to measure underwater distances and angles. Among them, the speed of sound wave propagation is one of the most important acoustic parameters, and it is the most basic physical parameter that affects the propagation of sound waves in the ocean. [0003] In order to accurately measure the distance, level or bearing in the o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01H5/00
CPCG01H5/00Y02A90/30
Inventor 薛彬董繁鹏
Owner TIANJIN UNIV