ShapeAccelArray™ Specifications

Specifications of Vertical or Horizontal Field-Model ShapeAccelArray
- Vertical or Horizontal (down-hole or cross-slope).
- Battery-operated, automatic wireless posting of data.
- Tilt measurement from all segments.
- Rapid vibration measurement from a few segments.

Specifications of Vertical High-Bandwidth Research Arrays (Horizontal version is also available)
- Vertical (standard) or Horizontal (special order).
- Ideal for Shaker Box research.
- Tilt measurement from all segments.
- Rapid vibration measurement from all segments.
- More options for special lengths, configurations.

Specifications of Vertical or Horizontal Field-Model ShapeAccelArray

Size, configuration:
•May be used in vertical or horizontal modes.
•Measures 3D shape within 45 degrees of vertical as x, y, z displacements, and tilt angles.
Near-horizontal shapes are measured as 2D projections in a vertical plane.
•Measures x,y, and z accelerations in each segment.
•Maximum Diameter: 25 mm.
•Standard Length of segments: 305 mm (12 inches) (Joint center - Joint center).
•Available custom segment lengths: 250-2000 mm (Joint center - Joint center).
•Segment lengths over 305 mm cannot be shipped by courier due to reel size.
•Standard length of non-sensorized FAR anchor segment: 152 mm.
•Number of segments: 8,16,… 328.
•Number of sub-arrays: 1 - 41 (each with 8 segments).
•Total length: 2.44 - 99.9 m (+ strain relief: approx. 0.2 m, + FAR anchor segment 305 mm).
•Temperature is measured in each sub-array.
•Each sub-array has a unique address and is connected to a common serial line.
•Each array has a Measurand Data Concentrator to convert serial signals to raw data and
upload them wirelessly to a PC.
•Standard wireless mode: Cellnet/ FTP.
•Optional wireless mode: Local wireless serial link to nearby PC.
•Optional storage mode: Local storage in Data Concentrator, for periodic wired upload to PC (Capacity: > 1 year with default settings).

Environmental:
•Waterproof to 100 m (water column on lowest segment).
•Operating and storage temperature: 0 to 70 °C (-40 to 85 °C optional).

Power:
•Solar Power.
•Battery life without sun: minimum 1 month using default communication settings.
•Optional mains supply (if power is available).
•Optional battery bank (non-solar) with up to one-year capacity.

Static Shape Measurements:
•Range (per segment): +/- 45 degrees.
•Absolute accuracy of tilt within 20 deg of vertical: 0.2 deg (3.4 mm/m).1
•Resolution of tilt within 20 deg of vertical: 0.001 deg (0.017 mm/m). 1
•Azimuth error: <2 deg. 1
•Orthogonality within segments: 0.1 deg. 1
•Effect of temperature after compensation: < 0.1 deg/°C (preliminary). 1
(note 1: SAAF, averaging mode, average of 200 frames).

Dynamic Acceleration Measurements:
•Range: +/-2 G
•3dB Bandwidth: 20 Hz (Subject to change; contact Measurand).
•Noise floor: <2mG RMS.
•Data rate: 40 Hz or better to Data Concentrator, from up to 3 segments).

Software:
•SAA2 Field software enables acquisition from remote arrays, visualization of arrays in 3D,
changes to settings of arrays (administrator only), and export of ASCII data (x,y,z, angle, accel).

Specifications of Vertical High-Bandwidth Research Arrays
(Horizontal version is also available)

Size, configuration:
•May be used in vertical or horizontal modes.
•Measures 3D shapewithin 45 degrees of vertical as x,y,z displacements,
tilt angles, and intersegment angles. Near-horizontal shapes are measured
as 2D projections in a vertical plane.
•Measures x, y and z accelerations in each segment.
•Maximum Diameter: 25 mm.
•Standard Length of segments: 305 mm (Joint center - Joint center).
•Segment lengths over 305 mm cannot be shipped by courier due to reel size.
•Standard Length of non-sensorized FAR anchor segment: 152 mm.
•Number of segments: 8, 16, or 24.
•Number of sub-arrays: 1 - 3 (each with 8 segments).
•Total sensorized length: 2.44 m - 7.32 m .
•Temperature is measured in each sub-array.
•Each sub-array has a unique address and serial line for maximum data rates.
•Each array with more than one sub-array has a Measurand Data Concentrator
comprised of an interface box for up to four SAARs, remote recording and
synchronization inputs, and high-speed RS485 cards. Most systems
are quoted complete with a PC with cards installed, and all accessories.
Arrays with one sub-array (8 segments only) can be connected directly to the
serial port of a PC (not included) using a Measurand RS485 to RS232 converter.
Environmental:
•Waterproof to 100 m (water column on lowest segment).
•Operating and storage temperature: 0 to 70 °C (-40 to 85 °C optional).

Power:
9-12 VDC wall-mount supply (included).

Static Shape Measurements:
•Range (per segment): +/- 45 degrees.
•Absolute accuracy of tilt within 20 deg of vertical: 0.2 deg (3.4 mm/m).1
•Resolution of tilt within 20 deg of vertical: 0.001 deg (0.017 mm/m). 1
•Azimuth error: <2 deg. 1
•x, y orthogonality within segments: 0.1 deg. 1
•Effect of temperature after compensation: <. 1 deg/degc (preliminary). 1
(note 1: SAAR, averaging mode, average of 200 frames).

Dynamic Acceleration Measurements:
•Range: +/-2 G (x, y, or z)
•3dB Bandwidth: 20 Hz.
•Noise floor: <2mG RMS.
•Data rate: 70 Hz or better.

Software:
•Multi-array SAARecorder software enables acquisition from up to 8 arrays in
one PC using Measurand RS485 Data Concentrator Equipment, visualization
of arrays in 3D, and export of ASCII and Matlab data (x,y,z, angle, accel).
Remote recording and synchronization inputs are standard.