Nanocomposite optical strain gauge
US10330541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The pressure-detecting system utilizes a nanocomposite sensor with quantum dots embedded in a matrix. Under pressure, both the quantum dots and the matrix fluoresce when illuminated by a laser. A spectroscope detects the intensity of each fluorescence and sends the information to a data processor. The data processor calculates a ratio using the intensities. Comparing this ratio to ratios stored in a data object in a database provides a value for the pressure detected by the sensor. The data object contains multiple ratios, each correlated to a specific pressure during a calibration process for the sensor. This calibration process subjected the sensor to known pressures, with the resultant ratios calculated and stored in the data object, correlated to the appropriate pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.