NBM-019A Near Bit Inclination Module

The Near Bit Orientation Module is the latest in a range of Azimuth sensors specifically aimed at advancing the technology of downhole directional measurements for the MWD market.


This sensor provides accurate and repeatable Inclination measurements using the latest in proprietary Azimuth MEMS Accelerometer technology. Packaged robustly in a small footprint (0.75” x 6.0” nom.), the sensor is designed to withstand the rigours of Near Bit shock and vibration.

The Near Bit Module is qualified to 150DegC (302F), and tested under the same rigorous conditions expected of all Azimuth sensors. Available in both ‘Static Inc’ and ‘Continuous Inc’ forms, the module provides accurate Inclination measurements close to the bit, in a form which can be easily accommodated in annular type subs.

MEMS Accelerometers

MEMS Accelerometers

Ultra-small Form

Ultra-small Form

Reduced Capital Cost

Reduced Capital Cost

Designed for Near Bit

Designed for Near Bit

  • Ultra-small form
  • Continuous INC option
  • Low power consumption
  • High-shock and vibe specification
  • Robust MEMS Accelerometers
  • Accurate, repeatable Inclination measurements
  • Calculated INC output
  • Serial Communication
  • Programmable filters
  • Full 3-Axis Accelerometers
  • 24-Bit Resolution
  • Constant data ‘Streaming’ option
  • Increased robustness near bit
  • Reduced cost
  • Reduced ‘downtime’
  • Precision measurements close to bit
  • Ease of implementation (form)
  • Near Bit Systems
  • Rotary Steerable Systems
  • Instrumented Motor Implementations
Value Units Comments
Inclination Accuracy 125ºC +/-0.15º Deg.
150ºC +/-0.2º Deg.
Inclination Repeatability +/-0.05 Deg.
TF/Rotation at >5° Inc - Accuracy +/-0.5 Deg.
TF/Rotation at >5° Inc - Repeatability +/-0.05 Deg.
Continuous INC TBA Deg.
Value Units Comments
Operating Voltage +12 to +40 Volts
Power Consumption 0.21 Watts Nominal
ADC Resolution 24 Bit Fully parrallel 3-Axis
Interface Serial TTL 3.3V or 5.0V Option
Baud Rate 9600 - 153600 Baud
Operating Modes Master-Slave, Express Survey or Streaming
Output INC, Temp, Raw Fields, Gt
Connector 7-Pin Circular MDM
Value Units Comments
Length 6.05 (153.67) Inches (mm)
Diameter 0.75 (19.05) Inches (mm)
Weight 0.18 (0.08) lbs (Kg)
Value Units Comments
Operating Temperature -25 to 150 °C
Survival Temperature -40 to 175 °C
Vibration 30 g pk 50 – 1000Hz
20 g rms 50 – 1000Hz
NBM-019A

We provide a responsive repair, calibration and product support service. Our highly experienced and knowledgeable personnel are available to troubleshoot or repair equipment, and provide general product technical assistance.

If you need effective sensor support for your business contact
support@azimuthmwd.com for more information.