ShapeAccelArray (SAA)

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Model 7300 ShapeAccelArray (SAA) is a new alternative to Model 7200 in-place inclinometers and Model 7000 traversing inclinometers. It comprises of continuous strand of segments each an orthogonal array of 3 MEMS (micro electrical mechanical sensors). Model 7300 SAA may be used vertically to track magnitude and direction of lateral deformation, and horizontally to track vertical deformation. In any pose, 3D vibration data are available from selected locations along the array.


  • In-situ monitoring of unstable slopes
  • Monitoring of civil structures
  • Monitoring of open pit walls and underground excavations
  • Monitoring of drill-hole shape
  • In-situ vibration monitoring


  • Ease of installation
  • High deformation ability
  • High tolerance to shearing
  • High spatial resolution
  • Can be connected to a datalogger
  • Re-usable
  • Installed in inexpensive 27mm ID PVC pipe


  • Vibration data sampling frequency: 35-40 Hz
  • Accuracy: 1.5 mm per 30 m
  • Maximum possible length: 100 m
  • Segment Length: 305mm (English) or 500mm (Metric)