Geophysics Field Survey in British Columbia | Mega Ohm Reading? How to Fix High Contact Resistance скачать в хорошем качестве

Geophysics Field Survey in British Columbia | Mega Ohm Reading? How to Fix High Contact Resistance

Description: In this IP survey fieldwork, I checked the contact resistance between the electrodes and the ground using a digital multimeter. The reading was 32.5 MΩ — which is way too high! This usually means there’s a broken connection somewhere along the cable or wire. When resistance is in the Mega Ohm range, it’s a strong sign that the circuit is not complete — like a disconnected or damaged wire. In geophysical surveys, especially for IP or resistivity, proper contact resistance is critical. It should be in the kilo ohm (kΩ) range or lower. If your multimeter shows Mega Ohms: 1. Start checking the wire from the multimeter back toward the electrode. 2. Look for cuts, loose joints, or broken clamps. 3. Make sure the electrode is properly hammered into moist soil. High resistance = weak or no current flow = bad data. Field troubleshooting like this is essential to keep surveys running smoothly. #IPSurvey #Geophysics #FieldWork #HighResistance #MultimeterReading #GeophysicalSurvey #ContactResistance #Troubleshooting #MegaOhm #ResistivitySurvey #ElectrodeSetup #CableCheck #GeoscienceTools #GeophysicsTips #FieldSurvey #WomenInGeoscience #STEMInTheField #OutdoorWork #SurveyLife #ElectrodeConnection #GeophysicsCanada