Digital Inclinometer Spiral Sensor

Ficha técnica (ES)


The RST Digital MEMS Inclinometer Spiral Sensor is used to determine down-hole helical deformation of installed inclinometer casing. Installed casing spiral is a function of the manufacturing process, casing coupling, and installation technique.

Best casing installation practice requires that the casing be installed with the correct azimuth from the start and throughout the installation, with no torque applied either intentionally or otherwise during the installation. Such carefully installed RST inclinometer casing would typically maintain groove azimuth to within a few degrees over 30 metres. However, for very deep installations, or installations where twist due to installation problems is suspected, the Digital MEMS Inclinometer Spiral Sensor permits measurement of the installed groove azimuth down-hole.


Determining spiral deformation of inclinometer casing installed in very deep boreholes.


  • Accuracy of ±1° per 30 m typical
  • Resolution of 0.1°
  • Overall Length of 570 mm
  • Gauge Length of 400 mm
  • Compatible Casing Sizes of 70 mm (2.75 in.) and 85 mm (3.34 in.)
  • “Hot swap” capability with RST’s Digital Inclinometer System – simply connect the probe to the reel’s connector and prepare for spiral readings on the spot.
  • No additional software required – Inclinalysis™ Software used for RST’s Digital Inclinometer System doubles as the method of processing spiral data.
  • View brochure for complete specifications.