Electromagnetic field detection systems and methods
US8860402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2010 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jul 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/0878
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Detectors and other apparatus for determining the presence of electromagnetic events are disclosed. One such system includes an electromagnetically shielded enclosure and a detector configured to detect an electromagnetic field event occurring in the proximity of the enclosure. The detector includes an antenna and a circuit electrically connected to the antenna. The circuit includes electronics communicatively connected to the antenna via a direct current isolation circuit, and an equalizer compensating for the differentiating frequency response of the antenna. The circuit also includes a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna, and a peak detector receiving signals from the logarithmic amplifier and configured to capture a peak value of the signals. An electromagnetic field event is detected at least in part based on the peak signal value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.