Device for direct and continuous receiving and measuring of electrical magnetic and acoustic signals
US4198596A · kind A · utility
18Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1977 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Oct 7, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A direct and continuous receiving and measuring device for electrical, magnetic and acoustic signals comprises an amplifier stage and a broadband filtering stage at the input, a local oscillator for supplying a reference signal, a measuring stage, a mixer to which the local oscillator and the broadband filtering stage are connected and a low frequency filtering stage connected to the mixer. The invention also includes the process of carrying out the measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.