Detection of Lost Oil Well Casings and Unknown Water Filled Voids in Coal Mines Through Development of a Microwave Antenna System.
For Reference Only At Bureau Libraries :94 pages
The initial evaluation of two potential systems for the location of well casings, voids, and tunnels in coal are described. The pulse measurement equipment used for the evaluation of the antennas selected for possible use with a pulse time domain system and an fm- cw system is described. A horn antenna design potentially suitable for use with these systems is given.
CP; Final Contract Report;
For Reference Only At Bureau Libraries
National Bureau of Standards