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RST INSTRUMENTS
RST Instruments Ltd.
11545 Kingston St.,
Maple Ridge, B.C. Canada V2X 0Z5
Tel:
(604) 540-1100
Fax:
(604) 540-1005
Email:
info@rstinstruments.com
Website: www.rstinstruments.com
MEMS Tilt Beam
Instruction Manual
Copyright ©2012 RST Instruments Ltd. All Rights Reserved.
LTD.

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Summary of Contents for RST Instruments MEMS Tilt Beam

  • Page 1 RST INSTRUMENTS LTD. MEMS Tilt Beam Instruction Manual Copyright ©2012 RST Instruments Ltd. All Rights Reserved. RST Instruments Ltd. 11545 Kingston St., Maple Ridge, B.C. Canada V2X 0Z5 Tel: (604) 540-1100 Fax: (604) 540-1005 Email: info@rstinstruments.com Website: www.rstinstruments.com...
  • Page 2 MEMS Tilt Beam Instruction Manual Although all efforts have been made to ensure the accuracy and completeness of the information contained in this document, RST Instruments Inc. reserves the right to change the information at any time and assumes no liability for its accuracy.
  • Page 3: Table Of Contents

    LECTRICAL LIST OF FIGURES Figure 1: MEMS Tilt Beam ......................1 Figure 2: MEMS Tilt Beam Details ....................1 Figure 3: Horizontal & Vertical Tilt Beam Concrete Anchor Orientation ........3 Figure 4: MEMSTilt Beam/Meter General Arrangement ...............4 Figure 5: Single Beam Mounting Details ..................5 Figure 6: Multiple Beam Configurations ..................7...
  • Page 4: General Description

    X or Y directions. The Horizontal or Vertical MEMS Tilt Beam system consists of a fiberglass beam with mounting brackets, and a uniaxial MEMS sensor. The Vertical Tilt Beam is capable of uniaxial as well as biaxial MEMS sensors (optional).
  • Page 5: Materials

    3.1 A NCHOR NSTALLATION It is important to install the anchors at a distance equal to the MEMS Tilt Beam mounting angles pattern (using a level, ensure the anchors are installed inline horizontally or vertically) (see figure 3). The anchors should: 1.
  • Page 6: Figure 3: Horizontal & Vertical Tilt Beam Concrete Anchor Orientation

    MEMS Tilt Beam Instruction Manual 2. In plane (i.e. reading level, if a level were placed across both anchors) 3. Allow anchors to set. 10mm CONCRETE ANCHOR 10mm CONCRETE ANCHOR HOLES TOP VIEW REQURED SPAN ACCORDING TO TILT BEAM LENGTH...
  • Page 7: Figure 4: Memstilt Beam/Meter General Arrangement

    MEMS Tilt Beam Instruction Manual Figure 4: MEMSTilt Beam/Meter General Arrangement RST Instruments...
  • Page 8: Single Mems Tilt Beam Installation

    MEMS T INGLE NSTALLATION Determine the MEMS Tilt Beam installation orientation (i.e. Is the Beam to be installed on the ceiling, wall, or floor). Refer to Figure 4 and adjust mounting brackets accordingly. 1. Thread a 10mm nut onto each anchor until they reach the desired position (ensure the nuts are in plane) 2.
  • Page 9: Multiple Mems Tilt Beam Installation

    ULTIPLE NSTALLATION Determine the MEMS Tilt Beam installation orientation (i.e. Is the Beam to be installed on the ceiling, wall, or floor). Refer to Figure 4 and adjust mounting brackets accordingly. Ideally, the beams should be staggered (see Figure 6).
  • Page 10: Figure 6: Multiple Beam Configurations

    MEMS Tilt Beam Instruction Manual The beams when installed should be staggered and the washers and nuts should be installed as shown in Figure 6. 10mm NUT 10mm BELLEVILLE WASHER 10mm NYLON WASHER 10mm BELLEVILLE WASHER MEMS TILT BEAM 10mm NYLON WASHER...
  • Page 11: Electrical Connections

    MEMS Tilt Beam Instruction Manual 3.4 E LECTRICAL ONNECTIONS 1. Under the Colour Code Table, look up the lead designations for the type of cable being used. 2. Under the Electrical Connections Table, make the appropriate lead connections, according to the type of system being used.
  • Page 12: Analyzing The Data

    = r sine() ----- In the case of a uniaxial MEMS Tilt Beam, radius (r) is the beam length. For MEMS Tilt Beam on rigid bodies, the radius must be chosen with some care. RST Instruments...
  • Page 13: Figure 8: Tilt Data Interpretation

    MEMS Tilt Beam Instruction Manual  Figure 8: Tilt Data Interpretation In cases where the actual angle is sought, the arcsine function or a polynomial equivalent may be used:  = arcsine(a/g) It should be noted that measuring “dynamic tilt” may be a concept error: the lateral...
  • Page 14: Figure 9: Mems Tiltbeam Directional Reading

    MEMS Tilt Beam Instruction Manual Figure 9: MEMS Tiltbeam Directional Reading RST Instruments...
  • Page 15: Specifications

    MEMS Tilt Beam Instruction Manual 5 Specifications 5.1 E NVIRONMENTAL Operating temperature -40C to +80C 5.2 E LECTRICAL Sensor 0ne/Two MEMS Tilt Sensor(s)  15 Degree Standard Range Resolution 0.0013 Degree Null Repeatability <0.004 Degree Signal Cable 22 Gauge Shielded Twisted...
  • Page 16: Figure 10: Calibration Certificate

    MEMS Tilt Beam Instruction Manual Figure 10: Calibration Certificate RST Instruments...

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