... precision fiber optic gyroscope. It is a precise, digital borehole inclinometer of new type, which is specially designed to determine slope ... with specially designed software, it can show inclination datasheet of borehole, and it can plot plane diagram, sectional diagram, ... is charged;5. Measurement probe: Φ40×1500 (mm);6. Borehole range: borehole diameter ≥Φ45 (mm); Depth ≤1500 m;7. Working ...