View source for 18508651. METHOD OF ESTIMATING ABSOLUTE STRAIN OF STRUCTURE REFERENCE-FREE USING ULTRASONIC WAVE VELOCITY, AND SYSTEM FOR THE SAME simplified abstract (KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY)

=METHOD OF ESTIMATING ABSOLUTE STRAIN OF STRUCTURE REFERENCE-FREE USING ULTRASONIC WAVE VELOCITY, AND SYSTEM FOR THE SAME=


==Organization Name==

[[:Category:KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY|KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY]]


[[Category:KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY]]

==Inventor(s)==

[[:Category:Hoon Sohn of Daejeon (KR)|Hoon Sohn of Daejeon (KR)]][[Category:Hoon Sohn of Daejeon (KR)]]

[[:Category:Ohjun Kwon of Daejeon (KR)|Ohjun Kwon of Daejeon (KR)]][[Category:Ohjun Kwon of Daejeon (KR)]]

==METHOD OF ESTIMATING ABSOLUTE STRAIN OF STRUCTURE REFERENCE-FREE USING ULTRASONIC WAVE VELOCITY, AND SYSTEM FOR THE SAME - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18508651 titled 'METHOD OF ESTIMATING ABSOLUTE STRAIN OF STRUCTURE REFERENCE-FREE USING ULTRASONIC WAVE VELOCITY, AND SYSTEM FOR THE SAME

==Simplified Explanation==

The patent application describes a method and system for estimating the absolute strain of a structure under tensile force using ultrasonic wave velocity in a reference-free manner. 

* Ultrasonic vibrations are generated by a vibration exciting element attached to the structure.
* First and second ultrasonic vibrations propagating in the tensile force direction and a direction orthogonal to the tensile force direction are detected using vibration detection elements.
* The detected ultrasonic vibration signals are converted into digital signals.
* A computing unit calculates propagation velocities of the ultrasonic vibrations and applies them to an equation to obtain the absolute strain of the structure in the x-direction due to the tensile force.

### Potential Applications
- Structural health monitoring
- Non-destructive testing in industries such as aerospace, automotive, and civil engineering

### Problems Solved
- Accurately estimating the absolute strain of a structure under tensile force
- Providing a reference-free method for strain estimation

### Benefits
- Early detection of structural issues
- Improved safety and reliability of structures
- Cost-effective maintenance and repair planning

### Potential Commercial Applications
#### Structural Health Monitoring Technology for Infrastructure Maintenance

### Possible Prior Art
No prior art is known at this time.

## Unanswered Questions

### How does this technology compare to traditional strain measurement methods?
This article does not provide a direct comparison to traditional strain measurement methods, leaving uncertainty about the advantages and limitations of this new approach.

### What are the limitations of using ultrasonic wave velocity for strain estimation in different types of structures?
The article does not address potential limitations or challenges that may arise when applying this technology to various types of structures, leaving room for further exploration and research.


==Original Abstract Submitted==

Disclosed are method and system of estimating an absolute strain of a structure under tensile force in a reference-free manner using ultrasonic wave velocity. Ultrasonic vibrations are generated by a vibration exciting element attached to the structure, and first and second ultrasonic vibrations propagating in a tensile force direction and a direction orthogonal to the tensile force direction in the structure are detected using first and second vibration detection elements, respectively. The detected first and second ultrasonic vibration signals are converted into first and second digital signals. Then, a computing unit calculates propagation velocities of the first and second ultrasonic vibrations, and applies them to an equation of relationship between propagation velocities of ultrasonic vibrations and a strain of the structure to obtain an absolute strain of the structure in the x-direction due to the tensile force. The calculated absolute strain can be used to evaluate stability of the structure.



[[Category:G01M7/02]]