LVDT and LVIT sensors with a free core

LVDT and LVIT sensors with free cores consist of the (generally cylindrical) sensor body with the measurement coil and the separate immersion core (usually rod-shaped), which can be attached to the movable object to be measured.

The measurements are wear-free because they are performed with a free core which moves axially and is very simple to adjust without any contact. As a result, precise measurements can be made with the LVDT as well as with the LVIT, without affecting the object measured. The immersion cores of most of the sensor series with free cores are provided with a PTFE coating as an additional wear-prevention. This can be renewed if damaged.

The immersion core is an integral component of the sensor scope of delivery, as well as a counter plug for variants with a plug connection; thus neither need to be ordered separately. Additional accessories e.g. for installation, can be found in the appropriate section.

All LVDT and LVIT sensors mentioned on this psge are “passive”, meaning they require a separate electronic device (CF measuring amplifier) to operate.


You will find an overview of our most important series of LVDT and LVIT sensors (an excerpt from our extensive product range) here.


LVDT DU

  • inductive full bridge
  • Displacements 15 … 1000 mm
  • 14 mm diameter
  • also with radial connection

recommended for new applications in the range of 50…500 mm type DLH or DUH

LVDT DK

  • inductive full bridge
  • Displacements 2 … 250 mm
  • 20 mm diameter
  • also with radial connection

 

LVDT DL

  • Inductive, symmetrical full bridge (LVDT)
  • displacements 50 … 400 mm
  • with leads, cable or plug connection
  • compatible with various carrier frequencies

 

LVDT DLH

  • Inductive, symmetrical full bridge (LVDT)
  • displacements 50 … 500 mm
  • up to 40% shorter than other LVDTs
  • compatible with various carrier frequencies
  • very balanced linearity behavior (to 0.1%)

Optional:

  • AC/AC versions, optionally also with 80 mV/V
  • DC/DC versions coming soon

 

LVDT DUH

  • Inductive, symmetrical full bridge (LVDT)
  • displacements 50 … 500 mm
  • up to 40% shorter than other LVDTs
  • compatible with various carrier frequencies
  • very balanced linearity behavior (to 0.1%)

Optional:

  • AC/AC versions
  • DC/DC versions coming soon

LVDT DM

  • Inductive, symmetrical full bridge (LVDT)
  • displacements 16 mm
  • optional: housing with external threads M 20 x 1.5
  • highly pressure-resistant up to 200 bar
  • suitable for various carrier frequencies

LVIT WLG

  • inductive half bridge
  • Displacements 10 … 500 mm
  • standard sensor for numerous applications
  • 12 mm diameter
  • set to 80 mV/V

LVIT WLH

  • inductive half bridge
  • Displacements 10 … 500 mm
  • standard sensor for numerous applications
  • 12 mm diameter

LVIT WM

  • Miniature displacement sensor
  • inductive half bridge
  • displacement starting with 1 mm
  • starting with 10 mm diameter
  • short construction length, very small (immersion) core mass

LVIT WV

  • inductive half bridge
  • Displacements 2 … 20 mm
  • 14 mm diameter
  • economical version
  • Linearity class up to 0.1%

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