Apparatus for determining the fatigue condition of a structure
US4598592A · kind A · utility
14Cited by
4References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1983 |
| Grant date | Jul 8, 1986 |
| Priority date | — |
| Expiry date | Oct 31, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Electrical signals, representative of stress induced in a structure, are developed by a piezoelectric transducer (10) attached to the structure in response to stress changes in the structure caused by loads applied to the structure. The signals storage signals from the electrical signals and the storage are processed by a signal processing circuit (12) to develop signals are accumulated by a storage unit (14) to develop a fatigue condition indication of the cumulative effect of the loads applied to the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.