Probing a structure of concrete by means of electromagnetic waves
US11275073B2 · kind B2 · utility
1Cited by
7References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 10, 2017 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Apr 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4069
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to accurately probe a structure of concrete, a series of probe signals with defined carrier frequencies are generated by a probe signal generator and coupled into the structure by an antenna. The returning echo signals are processed by an echo signal receiver. Processing includes phase and amplitude detection in a multiplier, frequency-specific scaling in a scaling unit, replacement of the measured phases and amplitudes in an interpolation unit, and the generation of time-domain data in a Fourier transformation module. The device is robust against RF noise, accurate and low-power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.