Displacement Sensors

Loadstar Sensors offers three types of displacement sensors based on three different technologies: One is based on a linear potentiometer, one based on a rotary potentiometer and one based on a digital linear encoder technology. These serve applications with varying ranges and varying accuracy and cost point requirements.

LVDT
LVDT

LVDTs are linear potentiometers which change resistance when a plunger's position is changed with respect to a fixed surface. When a voltage is supplied to the LVDT (say a 5 V DC input voltage), the output varies between 0 to 5 V DC from zero to full scale displacement.

These sensors are good for short distances of about 0 to 100 mm displacments (about two inches) and offer about +/- 1% accuracy of the full scale range. For higher accuracy look at the iDisp digital force gage we offer.

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StringPots
StringPots

String Potentiometers are rotary potentiometers which change resistance when a rotor's position is changed with respect two a fixed point. When a voltage is supplied to the String Pot (say a 5 V DC input voltage), the output varies between 0 to 5 V DC from zero to full scale displacement.

These sensors are in ranges up to 80 inches! They offer accuracies of about +/- 1% accuracy of full scale. String pots are available with USB and wireless output as well.

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Digital Gage
Digital Gage

For very high resolutions and accuracies over small displacements (under two inches), the iDisp digital encoders are the best choice for your application.

These sensors are available in 30 mm and 60 mm ranges and offers accuracies of as much as +/- 0.0015 mm over that range. They are come with an interface that provides USB output and work with our SensorVUE software to display, log and plot data. Add a USB load cell with the iDisp to get Force vs. Displacement measurements effortlessly!

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