For powering up the transmitter of FlashRES resistivity meter, an external 12 volt truck/car battery of ≥ 90 Amp/hr is needed.

A partial amount of the 62k data may not be useful, but it is difficult to deduce which part of the collected data isn't useful. As the diagram below shows, all three curves are important. Any underground anomaly will affect the shape of these curves. Thus, before assessing the geological data, i...

FlashRES resistivity meter can display full waveform current and voltage data during the data collection phase. This helps the user monitor background, contact, and instrument noise, which prevent users from collecting poor quality data unknowingly. For details, please refer to the diagram below.

This is similar to the surface resistivity survey: the wider the surface electrode range, the deeper the exploration depth. The effective distance between two boreholes in a crosshole resistivity survey is also related to the distance between the top electrode and bottom electrode in each borehole.

A roll-along survey in resistivity exploration is a survey method to cover a long survey line with limited electrodes in each run. For example, the survey line in the figure below needs two runs to cover the survey line with a 64 electrode resistivity meter.

The FlashRES system is capable of completing any kind of 3D survey as shown in the figures below.

These questions applies to all resistivity and IP meters. The exploration depth normally depends on the survey line length and maximum ABMN separations. Since the maximum ABMN separations for the FlashRES resistivity meter are the same as the survey length, the exploration depth for our resistivi...