Fig.1. GPR survey path PL-01 Two GPR sets were used for the survey. First GPR set: low-frequency GPR “Loza-N” [1]. Technical characteristics: 1. Frequency band : 1-50 MHz; 6. Pulse duration: 5-10 ns; 2. Antennas type – half-wavelength resistively-loaded dipoles 7. Time window: 512, 1024, 2048 or 4096 ns; (Wu-King antennas); 8. Dynamic range: 120 […] Read All
In recent years the employees of Sacsayhuaman archaeological complex witnessesed a number of destructive processes taking place at the certain sites of the complex. These consisted of the large cracks coming forth in the main walls, the shift of the stone blocks and recession of the walls (see the Drawings). Such trend may lead to […] Read All
Ground penetrating radar (commonly called GPR) is a high resolution electromagnetic technique that is designed primarily to investigate the shallow subsurface of the earth, building materials, and roads and bridges. GPR has been developed over the past thirty years for shallow, high resolution investigations of the subsurface. GPR is a time-dependent geophysical technique that can […] Read All
The National University of San Agustin (UNSA), CONCYTEC together with CIENCIACTIVA as the agency for financing and geological faculty, geophysics and mines, organized the 1st INTERNATIONAL GEOSCIENCES CONGRESS, which was held in Arequipa from March 20 to 24, 2017. This event was held with the participation of famous international experts and scientists from Australia, Brazil, […] Read All
… at low weight on batteries, this is due to the performance of hydrogen, as I was told? Please provide technical information of such generation mechanism, understandable for a qualified user. Also in the technical documentation it is written that the peak voltage of the transmitter can reach 21 000 V. This is a very […] Read All
Still, there still is a number of variations (V, V1, V2, N, N1, М) that differ in measuring modes. List the complete range of products, configurations and applications. Loza georadar has two main modifications having fundamental differences: Versions V, V1 and V2 (as well as N, N1 and N2) have unprincipled differences and reflect the […] Read All