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Auxiliary Device

Borehole Directional Instrument

Explosive-proof Borehole Directional Instruments are developed to position the borehole opening angle,according to the north azimuth rapidly and automatically. The working principle is using optical fiber gyro with high accuracy to measure...
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Description

Explosive-proof Borehole Directional Instruments are developed to position the borehole opening angle,according to the north azimuth rapidly and automatically.
The working principle is using optical fiber gyro with high accuracy to measure earth rotation speed, and then using accelerometer to adjust tilt angle. The apparatus has below advantage.
1  Isolated from effect of earth magnetic field
2  High Accuracy result gained at borehole opening position
3  Timely display continuous measuring results
Specification
Specification Parameter
Power Explosive-proof  Battery 15VDC
Time waiting for position ﹤5min
Pitch/Roll Measuring Range -60°~60°
Pitch/Roll measuring Accuracy ±0.2°
Heading/Measuring Range 0°~360°
Heading / Measuring Accuracy ±1.0°
Operating Hours ﹥72h
Operating Temperature -40℃~60℃
Dimensions 220×146×101mm
Weight ≤6.5Kg
 
Borehole Directional Instrument Package
Item Part# Quantity
Explosive-proof Borehole Directional Instruments YHZ 90/360 1 unit
Explosive-proof Communication Cable YHZ 90/360-232c 1 unit
Explosive-proof Battery Charger YHZ 90/360-Charger 1 unit
Installation Clamp   2 unit
Manual, Coal Safety Certificate, Explosive-proof Certificate, Coal Safety Inspection Report   1 set

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