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Soil mechanics

Mini On-sample transducers for local strain measurement in triaxial testing

Mini-on sample transducers hall effect
Transducers mounted on sample
Vh: Hall voltage; B: Magnetic field; I: current across to the plate length; e: elementary charge; t: thikness of the plate; n: charge carrier density
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Main Features

  • Suitable for specimen diameters from 38 to 150mm
  • Maximum working pressure of 3400 kPa
  • Light and compact construction suitable for advanced triaxial cells
  • Axial and radial deformation measured directly on the triaxial test specimen
  • Suitable  for static and dynamic data acquisition by triaxail systems 
  • tecnical specifications
    • Scroll the table
      • Input voltage: 10 V
      • Output voltage (ratiometric): ± 350mV (radial); ±950mV (axial)
      • Accuracy (average): better than ±0.5% FRO
      • Temperature coefficient:  ± 0.02/FRO/°C
      • Weight:   
      • dia.(mm) radial(g) axial(g)
        38 28 9
        50 34 10
        70 46 11
        100 65 12
        150 95 14

  • ordering info
    • SUITABLE FOR STATIC TESTS

      28-WF4039/KM  
      Mini-On sample transducer kit for 38mm dia. samples with two linear and one radial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for static tests.    

      28-WF4059/KM 
      Mini On-sample transducer kit for 50mm diameter samples with one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for static tests.   

      28-WF4079/KM  
      Mini On-sample transducer kit for 70mm diameter samples with one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for static tests.

      28-WF4109/KM  
      Mini On-sample transducer kit for 100mm diameter samples with one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for static tests. 

      28-WF4159/KM 
      Mini On-sample transducer kit for 150mm diameter samples one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for static tests.


      SUITABLE FOR DYNAMIC TESTS (Dynamic triaxial system) 

      28-WF4039/KN  
      Mini On-sample transducer kit for 38mm diameter samples one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for dynamic tests.

      28-WF4059/KN
      Mini-On sample transducer kit for 50mm diameter samples one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for dynamic tests.    

      28-WF4079/KN
      Mini-On sample transducer kit for 70mm diameter samples one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for dynamic tests. 

      28-WF4109/KN
      Mini On-sample transducer kit for 100mm diameter samples one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for dynamic tests.   

      28-WF4159/KN
      Mini On-sample transducer kit for 150mm diameter samples one radial and two axial miniature transducers, radial belt, axial fixing pads and  plugs. Suitable for dynamic tests.

      The transducers mentioned above are also available with traceable calibration certificates 28-WF4XXX/KMC or 28-WF4XXX/KNC

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