SAAV Extend

Connect sensorized segments in the field for a continuous deformation profile.

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SAAV Extend | Key Takeaways

ShapeArray that grows with your monitoring strategy

SAAV Extend will always have a sensorized length that is right for your needs. Individual sensor segments are 500 mm each, and can be combined up to a total sensorized length of 200 m.

Simple installation in the field

SAAV Extend's hand-tight threaded connectors allow clients to easily add sections of lift extension segments without additional tools. Adding new lift extension segments is as simple as twisting, while keyed alignment marks on the connectors maintain the ShapeArray’s azimuth.

Durable, connectable design

Designed specifically for the rigors of tailings dam safety monitoring, SAAV Extend is submersible up to a depth of 200 m. SAAV Extend has the same 38-year MTTF as any ShapeArray that Measurand manufactures. It also has the same temperature tolerances and tensile strength, so clients can trust SAAV Extend in as wide a range of environments as existing SAAV models.

Real-time measurements in real-world conditions

You cannot guarantee pristine conditions in the field when you need to perform your ShapeArray installation. That’s why SAAV Extend's connectors have a 300-psi open-face pressure rating. You can connect segments in the rain without worrying about damaging your instruments.

Total control to monitor the zone of interest

Clients can use silent segments first introduced with SAAV, in addition to SAAV Extend's lift extension segments to target the total sensorized length towards the geologic zone of interest

Patented cyclical installation

SAAV Extend's patented cyclical installation system enables a stable fit into either new or distorted casings.



March 11th, 2021 – 2:00 PM EST

Join Measurand’s Robert Praeg and Matthew Miller as they lead an expert overview of SAAV Extend and help you understand what it means for your monitoring strategy.

Key takeaways you can expect from this webinar:
-An overview of this exciting innovation and why it was created.
-Review of the SAAV Extend specifications and what it means for your projects.
-Ideal applications for using SAAV Extend
-Live questions and answers

>> Register here

SAAV Extend

SAAV Extend

Your project site is not static, so you need geotechnical instrumentation that can adapt to new conditions. That’s why Measurand developed SAAV Extend to allow you to easily increase the length of your ShapeArray in the field as your needs change. This is ideal for situations such as increasing the height of a tailings dam. While a fixed-length instrument would have to be replaced entirely to accommodate the borehole’s increased length, SAAV Extend’s modular, connective design means that adapting your instruments is simple and more cost-effective.
SAAV Extend makes it possible for clients to add sensorized lift extension segments between a top assembly and the existing sensorized segments from the initial installation, known as the base array.
Clients don’t have to haul up the entire ShapeArray when to increase the total sensorized length. Just add the lift extension segments to the initial installation’s base array, along with the desired length of inclinometer casing. Re-attach the top assembly and the SAAV Extend is ready to continuously monitor deformation as the casing is back-filled.
SAAV Extend’s innovative, connectable design means clients can add or remove lift extension segments without ever needing to re-calibrate their ShapeArray.

Anatomy of SAAV Extend

SAAV Extend Top Assembly

The top assembly is the brain of the SAAV Extend that locks the instrument into standard inclinometer casing with Measurand’s patented cyclical installation method.  

SAAV Extend Base Array

The base array refers to the sensorized segments at the bottom of the borehole after the initial installation. 

SAAV Extend Lift Extension Segments 

Lift extension segments added between the top assembly and base array connect to form the SAAV Extend’s total sensorized length. 

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Lets not wait

  • 1993

    The Beginning

    Measurand is established in Fredericton, New Brunswick
  • 1994

    Bend sensor development

    Measurand develops and patents fiber optic bend and position sensors for the medical and automotive sectors

    U.S. Patent 5,321,257

  • 1995

    Canadian Space Agency

    Receives funding from the CSA to develop sensor technology that ultimately leads to invention of ShapeTape

    U.S. Patent 5,633,494

  • 1999

    Patent on fiber optic sensor

    Measurand receives patent for "Fiber Optic Bending and Positioning Sensor" issued June 29, 1999

    Canadian Patent 2,073,162

  • 2001

    ShapeTape & ShapeHand debut

    Measurand designs and develops innovative motion capture technology

    U.S. Patent 6,127,672, 6,563,107

  • 2002

    Measurand Attends the ICPMG

    First contact with the geotechnical sector at the International Conference on Physical Modelling in Geotechnics (ICPMG)
  • 2004


    Design patent application sent about a new product designed to meet the specific needs of the geotechnical industry

    U.S. Patent 6,127,672, 6,563,107

  • 2005-08


    Measurand debuts ShapeWrap motion capture technology for the film and animation industry

    U.S. Patent 7,296,363

  • 2006

    Malibu installation

    ShapeAccelArray installed for ground monitoring for the first time​ in Malibu, CA

    Canadian Patent 2,472,421

  • 2007


    Suite of instrumentation developed for motion capture within Magnetic Resonance Imaging (MRI) machines

    U.S. Patent 7,296,363

  • 2011

    SAAScan launched

    Built for rapid deployment and repeated use

    Canadian Patent 2,472,421

  • 2014

    SAAX launched

    Purpose-built for heavy-duty horizontal installation

    Canadian application 2,815,199 & 2,815,195

  • 2017

    SAAV launched

    The only geotechnical instrument with a patented cyclical installation method

    Cyclical Sensor Array, Canadian application 2,815,199 & 2,911,175