Vibrating Wire Load Cells

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Vibrating Wire Load cells are available in both solid and annular styles to monitor compressive loads.

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Product Features

  • Manufactured from high tensile, heat treated, stress relieved steel, with precision bearing surfaces

Overview

Vibrating Wire Load cells are available in both solid and annular styles to monitor compressive loads. Load elements are manufactured from high tensile, heat treated, stress relieved steel, with precision bearing surfaces. Machined overall, high tensile matching load platens are recommended to provide a smooth parallel bearing surface and spread the load.

Solid style cells incorporate 3 to 6 Vibrating Wire strain sensing elements mounted parallel to the longitudinal axis of the cell.

Annular cells incorporate 3 to 6 vibrating wire strain sensors, mounted parallel to the longitudinal axis, equidistant around the circumference.

With the multi sensor configuration, it is possible to obtain accurate readings under mildly eccentric loading conditions, as the sensors are read individually. In multi strand anchors, it is possible to tension the strands uniformly by monitoring the load in each sensor as appropriate.

The electrical cable to the readout may be either hard wired to the cell or connect via a metal Mil-spec type bayonet connector.


VIBRATING WIRE LOAD CELL SPECIFICATIONS

ITEM SPECIFICATION
Capacity 445 kN to 4450 kN (100,000 to 1,000,000 lbs)
Overrange Capacity 150% full scale
Sensitivity 0.01% full scale
Accuracy 0.5% full scale
Temperature Range -20°C to +80°C
Material High tensile, stress relieved steel
Hole Size As requested

Vibrating Wire Load Cells are commonly used for:

  • Measurement of loads in tie-backs, struts, ground anchors and rock bolts.
  • Measurement of loads during the testing of piles.

View illustrations on how Vibrating Wire Load Cells are used for:

Vibrating Wire Load Cell Ordering Info

Application
Annular or solid cell
ID of annular cell
Maximum load
Load platens
Cable type, connection method to cell, and length
Size limitations
Environmental data

 

Accessories Ordering Info

ITEM DESCRIPTION
Signal Cable EL380007P
Connector
(to work with VW2106 Vibrating Wire Readout)		 VW2106-LC

Vibrating Wire Annular Load Cell Standard Dimensions

 

PART # # OF VW SENSORS CAPACITY ID OD

 HEIGHT WEIGHT

 PLATEN

Kips
kN
in
mm
in
mm
in
mm
lb
kg		 OD

 HEIGHT (EACH)

 WEIGHT (PAIR)
in mm in mm lb kg
VWA-200-1.5 3 200 890 1.5 38.1 3.125 79.4 4 101.6 11.8 5.4 3.375 85.7 1 25.4 3.4 1.5
VWA-250-1.75 3 250 1112 1.75 44.5 3.500 88.9 4 101.6 13.3 6.0 3.750 95.3 1 25.4 6.3 2.9
VWA-300-2.0 3 300 1355 2 50.8 3.875 98.4 4 101.6 15 6.8 4.125 104.8 1.5 38.1 7.5 3.4
VWA-300-2.5 3 300 1335 2.5 63.5 4.250 108.0 4 101.6 15.7 7.1 4.500 114.3 1.5 38.1 8 3.6
VWA-400-2.25 3 400 1780 2.25 57.2 4.500 114.3 4 101.6 18.7 8.5 4.750 120.7 1.5 38.1 10.3 4.7
VWA-400-2.5 3 400 1780 2.5 63.5 4.630 117.6 4 101.6 18.7 8.5 4.875 123.8 1.5 38.1 10.3 4.7
VWA-400-3.5 4 400 1780 3.5 88.9 5.250 133.4 4 101.6 18.9 8.6 5.500 139.7 2 50.8 13.9 6.3
VWA-400-3.75 4 400 1780 3.75 95.3 5.375 136.5 4 101.6 18.5 8.4 5.625 142.9 2 50.8 13.9 6.3
VWA-400-4.0 4 400 1780 4 101.6 5.625 142.9 4 101.6 19.2 8.7 5.875 149.2 2 50.8 14.2 6.4
VWA-450-4.5 4 450 2001 4.5 114.3 6.125 155.6 4 101.6 20.7 9.4 6.375 161.9 2.5 63.5 19.6 8.9
VWA-500-3.0 3 500 2225 3 76.2 5.250 133.4 4 101.6 21.8 9.9 5.500 139.7 2.5 63.5 21.1 9.6
VWA-500-4.75 4 500 2225 4.75 120.7 6.500 165.1 4 101.6 22.9 10.4 6.750 171.5 2.5 63.5 22.3 10.1
VWA-500-5.0 4 500 2225 5 127.0 6.630 168.4 4 101.6 22.1 10.0 6.875 174.6 2.5 63.5 21.4 9.7
VWA-600-4.0 4 600 2670 4 101.6 6.250 158.8 4 101.6 25.9 11.7 6.500 165.1 2.5 63.5 26.2 11.9
VWA-700-3.0 3 700 3115 3 76.2 5.875 149.2 4 101.6 28.2 12.8 6.125 155.6 3 76.2 34.7 15.7
VWA-750-5.75 6 750 3337 5.75 146.1 7.875 200.0 4 101.6 31.3 14.2 8.125 206.4 3 76.2 39.4 17.9
VWA-800-4.5 4 800 3560 4.5 114.3 7.125 181.0 4 101.6 32.7 14.8 7.375 187.3 3 76.2 41.5 18.8
VWA-800-4.75 4 800 3560 4.75 120.7 7.250 184.2 4 101.6 32.2 14.6 7.500 190.5 3 76.2 40.8 18.5
VWA-800-5.0 4 800 3560 5 127.0 7.375 187.3 4 101.6 31.7 14.4 7.625 193.7 3 76.2 40 18.1
VWA-800-6.5 4 800 3560 6.5 165.1 8.500 215.9 4 101.6 32.2 14.6 8.750 222.3 4 101.6 54.4 24.7
VWA-1000-5.0 6 1000 4448 5 127.0 7.875 200.0 4 101.6 38.6 17.5 8.125 206.4 4 101.6 67.2 30.5
VWA-1000-8.0 6 1000 4448 8 203.2 10.125 257.2 4 101.6 40 18.1 10.375 263.5 4 101.6 69.9 32.0

 

NOTES: These specifications are typical only – custom sizes and capacities are available to suit individual project requirements. All loadcell design stress is 25 ksi
The model number is determined as follows: eg. VWS; VWS-Platen; VWS–Vibrating Wire Solid Load Cell (Customer to specify maximum capacity in Kips)

File Name

Vibrating Wire Load Cells

Resource Type

Brochure
Language Version Download
English LPB0002O

File Name

Vibrating Wire Load Cell Instruction Manual

Resource Type

Manual
Language Version Download
English LPM0002E

Speak with an Expert

I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
 
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd