SNR on the Four Probe Measurement System at Earth Surface

In the real world, presence of noise is undeniable. Electric fields, magnetic temperature changes, atomic structures, and so forth are contributing to reality magnitude noise. Data acquisition physical quantities in nature always needed, which subsequently required for interpretation laboratory. For this reason, needs be eliminated or known. four-probe measurement system, two electrodes injecting current, while other used arising voltage. The voltage that arises greatly influenced by natural environment conductor cables, usually long spans unprotected. minimization very needed. This study aims compare several types conductors reducing attenuation. was conducted an open field with a 20-meter cable, front-end amplifier varied get highest SNR.