DISCONTINUED: SAAF is a versatile ShapeArray with a range of available segment lengths that enable tailoring of spatial resolution and maximum curvature. Ideal for long-term monitoring horizontally, vertically, or in an arc.

Overview

Segment Length:
200, 305, and 500 mm

Installation:
Horizontal/Vertical/Convergence

Applications:
All-purpose shape monitoring

Project Duration:
Short and long term

The SAAF is one of the most versatile types of ShapeArray that Measurand manufactures. SAAF measures ground and structural deformation, settlement, and subsidence. SAAF’s design—rigid stainless steel sensorized segments connected by flexible joints—is durable. SAAF may be installed near vertical to track the magnitude and direction of lateral deformation, or near horizontal to track vertical deformation.

SAAF is configurable with smaller segments than other ShapeArray models. Smaller segments mean data is sampled at more points, providing much higher spatial resolution of measurement data. Smaller segments also allow for greater curvature tolerance, making SAAF perfect for cross-section installation to monitor convergence in tunnels.

ShapeArray installation and removal is fast and low-cost, typically requiring far fewer people than traditional in-place inclinometers. ShapeArray is rolled off a reel and set into a narrow diameter PVC casing (27 mm), which is grouted into a borehole.

SAAF is available in 200 mm, 305 mm, and 500 mm segment-length configurations. SAAF can be manufactured to a maximum length of 150 m. All ShapeArrays are manufactured in an ISO 9001 certified facility.

"After several installations, we were really satisfied that SAA provided continuous deformation profiles and  reliable data in our pile lateral loading tests."

Eric Hoe
Diagnostic Engineering Consultants, Ltd.

Technical Overview

ShapeArrays contain three MEMS sensors and a temperature sensor in every segment that measures tilt relative to gravity. SAAF can be installed near vertical to measure the magnitude and direction of lateral deformation to create 3D data or near horizontal to track vertical deformation to create 2D data. Additionally, SAAF can also be installed along the cross-section (circumference) of tunnels and used in “mixed H/V” mode to measure convergence.

The most important benefit of using ShapeArray is automation. Data from the ShapeArray can be collected by a data logger where it can be stored and manually collected or streamed wirelessly to a PC or central server. Data can also be retrieved in the field manually through the SAAFPU.

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How did engineers use the observational method during the construction of a new highway interchange?
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How did engineers use the observational method during the construction of a new highway interchange?

Download the Provincial Trunk Highway interchange Settlement Analysis datasheet.

  • 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

    ShapeArray

    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

    ShapeWrap

    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‚Äč in Malibu, CA

    Canadian Patent 2,472,421

  • 2007

    ShapeMRI

    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