Details
Manufactured by Schaevitz Engineering in the USA as their type number 125HPD and part number 11553692, these are a very high specification DC operated LVDT - Linear Variable Differential Transformer.
Supply is +- 15Vdc, the range is +- 0.125" (so 0.25" or 6.4mm) and the output load is 500K Ohms.
The length of the core is 1.1".
Linearity is 0.125% and the swing of .25" (6.4mm) results in an output voltage swing of 20.5V (-10.25 to +10.28).
Scale factor is 82.315 Volts/Inch.
Overall dimensions are 84mm long x 18mm diameter.
So obviously a very sensitive device, they were supplied to military specifications and come with a specific calibration sheet and operating instructions.
Brand new and unused but have had connections made for the calibration.
Fraction of the proper price for a LVDT of this spec.
Supply is +- 15Vdc, the range is +- 0.125" (so 0.25" or 6.4mm) and the output load is 500K Ohms.
The length of the core is 1.1".
Linearity is 0.125% and the swing of .25" (6.4mm) results in an output voltage swing of 20.5V (-10.25 to +10.28).
Scale factor is 82.315 Volts/Inch.
Overall dimensions are 84mm long x 18mm diameter.
So obviously a very sensitive device, they were supplied to military specifications and come with a specific calibration sheet and operating instructions.
Brand new and unused but have had connections made for the calibration.
Fraction of the proper price for a LVDT of this spec.