ShapeArray SAAScan

ShapeArray SAAScan

Built for rapid deployment and repeated use. The instrument of choice for one-shot verification of the alignment of jet-grouting holes. Thick-walled 500 mm segments provide great spatial detail and resist damage.

Product Features

  • Built for rapid deployment and repeated use
  • Rapid installation and removal
  • Significantly better torsional stiffness
  • Can be used to measure 3D shape within 60° of vertical
Category: Tags: ,

Description

Designed to be used, moved, and re-used as quickly as possible, SAAScan is ideal for applications where borehole shape must be measured repeatedly—jet grouting and borehole drilling, for example. SAAScan’s robust and durable construction combines twist-resistant joints and thick-walled stainless steel segments. The construction contains a compact array of MEMS gravity sensors.

SAAScan saves time and money. It is a reel-based system enabling the measurement of hundreds of holes. A unique extension hose and cable terminator allows SAAScan to remain anchored on the reel while the rest of the array length is installed to collect accurate real-time data.

SAAScan’s segment length is 500 mm. SAAScan can be manufactured to a standard length of up to 50 m. Contact Measurand to inquire about custom lengths. All ShapeArrays™ are manufactured in an ISO 9001 certified facility.

Spesification

PHYSICAL PROPERTIES
ITEM SPECIFICATION
SEGMENT LENGTH 500 mm joint centre to joint centre
STANDARD LENGTH OF SAASCAN Up to 50 m
CUSTOM LENGTH OF SAASCAN Over standard length, contact Measurand for details*
LENGTH OF FAR TIP EYEBOLT 32 mm
LENGTH OF UNSENSORIZED NEAR CABLE END SEGMENT Standard 8.2 m (includes: 330 mm Cable Terminator Segment and 7.9 m Hydraulic Hose)
LENGTH OF COMMUNICATION CABLE Standard 15 m, (extending past the extension hose and cable terminator)
MAXIMUM DIAMETER 23 MM
WEIGHT 1.0 kg/m
OPERATING TEMPERATURE -40°C to 60°C
WATERPROOF TO 2000 kPa (200 m Water)
MAXIMUM TENSILE RESISTANCE  550 kgf
MAXIMUM JOINT BEND ANGLES 70°
POWER REQUIREMENTS 12 VDC at 1.8 mA/segment
ELASTIC TWIST TOLERANCE
ITEM SPECIFICATION
MAXIMUM TORQUE FOR ELASTIC RETURN1 2.0 N-m per joint
TWIST TOLERANCE1 0.5° per joint
ACCURACY OF RETURN FOR ELASTIC TWIST1 ±0.01° per joint
STATIC SHAPE MEASUREMENTS
ITEM SPECIFICATION
ANGULAR RANGE OF MEMS SENSORS ± 360° (software selection required for 2D/3D modes)
RANGE OF 3D MODE (VERTICAL) ± 60° with respect to vertical (SAARecorder alert at ±70° w.r.t. vertical)
RANGE OF 2D MODE (HORIZONTAL) ± 60° with respect to horizontal
RANGE OF 2D MODE (MIXED H/V) ± 180° with respect to horizontal
ACCURACY OF ABSOLUTE SHAPE1,2,4,5 ± 10 mm for 30 m SAAScan
RESOLUTION 0.00067° (0.012 mm/m)
ACCURACY OF TILT/SEGMENT WITHIN 20° OF VERTICAL2,4,5 ± 0.0005 rad = 0.029°
SYSTEM PRECISION3,4,5 ± 0.5 mm for 30 m SAAScan
SEGMENT PRECISION6 ± 0.0005° (0.01 mm/m) (68% confidence interval) ± 0.0050° (0.09 mm/m) (99.7% confidence interval)
SENSOR 24H STABILITY7 ± 0.01 mm/m (68% confidence interval) ± 0.03 mm/m (99% confidence interval)
AZIMUTH ERROR IN JOINTS < ±0.01°n
  1. Measured at 20°C, with X-Mark facing a consistent direction.
  2. Long term measurement value based on field measurements of vertical arrays > 1 year of operation.
  3. Short-term measurement ≤ 24 h.
  4. Value based on Average in Array (AIA) setting of 1000 samples.
  5. Specification is for 3D mode within ± 15° of vertical. Vertical accuracy degrades with angular deviation from the vertical.
  6. Sample size for segment precision is 540,000 readings. Data was collected for 3 different positions within +/- 10° of the X, Y, and Z axes. Figures provided fall within 99.7% confidence interval (3-sigma value).
  7. 24 h stability is the maximum change in the sensor readings in a 24 h period for an instrument installed in repeatability conditions. Sample size is 7,200 samples for each 24 h period reviewed. * Caution: Long SAAScans are heavy and winches would be involved in installing them.

Download Katalog

Download Brochure

Related products