Ultrasonic welding diagnostic method, joining method of welding member, and inspection device
US12194572B2 · kind B2 · utility
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2References
18Claims
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Key dates
| Filing date | Aug 29, 2022 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Feb 2, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/267
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic welding diagnostic method includes: applying a pressing force to an object to be joined so as to generate a surface pressure on a joint surface of the object to be joined; inputting ultrasonic waves to the joint surface; detecting an elastic wave propagating through the object to be joined by at least one sensor at a plurality of different positions; analyzing a signal detected by the sensor to generate an envelope of the signal and calculating information about the envelope; and determining a joint state on the joint surface based on the calculation result of the information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.