Design Of Data Acquisition System Based On Ultra-High Density Resistivity Method

For the problem of laboriousness, poor anti-jamming, low accurate measurement of the measurement technology in the existing coal mine, wells and near-surface, this paper proposes a data acquisition system based on ultra-high density resistivity method design. In this design, arranging the electrode once can supply any kind of four units to collect data. Beside, this design improves the anti-interference ability of collecting signal by using the synchronization encoding technology and achieves a high precision data acquisition in the use of 24 AD (Analog-to-digital converter). After testing, the design can measure up to 380 meters and have a sampling accuracy of up to 0.0025%.