Verifying structural integrity of materials using electrical properties
US11150209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Jul 3, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0536
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measurement system may include an electrical signal source; a plurality of electrical contacts electrically coupled to a tested material; a respective resistor associated with each electrical contact; a common node to which the respective resistors are electrically connected; and a control module. The control module may cause the electrical signal source to be electrically connected to a selected electrical contact as an input electrical contact. The remaining electrical contacts are electrically connected to a return node of the electrical signal source as extraction electrical contacts. The control module also may cause the electrical signal source to output an electrical signal to an input electrical contact; cause a respective electrical signal parameter to be determined at the respective resistor associated with each respective extraction electrical contact; and determine whether the tested material includes a crack or other defect based on the respective electrical signal parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.