Antenna for underground pipe detector
US4028707A · kind A · utility
14Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1976 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Mar 11, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/885
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method wherein an electrial impulse source transmits a radar-type signal through an antenna into the ground and is reflected by a target. The reflected signal or echo is detected by the antenna and an analog-to-digital converter converts it to a digital form which may be readily operated on, stored and recalled. A memory stores the information until recalled for comparison with a subsequent signal to give an indication of the location of metallic and non-metallic buried targets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.