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Linear Potentiometer VS LVDT

Linear Potentiometer VS LVDT

You will notice from our product portfolio that we can provide both LVDTs and Linear Potentiometers.

What are the similarities and differences? Finding out more about Linear Potentiometer vs LVDTs will help you make a more informed decision when it comes to your application. 

As well as having many similarities, linear potentiometers and LVDTs have some very important differences which lend them to particular applications and industries. 

Linear Potentiometer vs LVDT - What do they have in common?

There are many similarities between these two products, the main one being the fact that they both measure the same thing; linear displacement - the movement of an object within a straight line. Find out more about Linear Displacement. Other similarities include 

Linear Potentiometer vs LVDT – How are they different?

The main difference between linear potentiometers and LVDTs is the technology used within the sensor itself. LVDTs are non-contacting whereas (unless otherwise specified) potentiometers are not. The LVDT principle uses a nickel-iron core surrounded by wire coils; they determine the voltage change inside the LVDT which is converted into an output AC signal. The movement of the selected object is determined by the amount of movement from the centre position of the nickel-iron core.

Because they use non-contacting technology; LVDTs are wear-free and do tend to have a longer lifespan than potentiometers but this can make them more costly. 

Linear Potentiometers, although not friction-free, do offer the absence of electronics which can give them a long life and therefore make them the more effective solution. 

Linear Potentiometers and LVDTs from Ixthus 

Both of these products can be found on the Linear Position Sensors section of our website. 

Many of our Linear Potentiometers come from one of our sister companies - Variohm Eurosensor. They have been well proven in applications such as

They have a measuring range up to 250mm in 25 or 50mm increments with different series;

They offer a dual seal design for extended reliability. 

See these products as well as other linear potentiometers we can offer on our website here 

Our LVDTs come from our suppliers TE Connectivity and Burster 

AC LVDTs  Contains no electronics making them a great choice for applications which may have either size or cost restrictions they are well suited to applications in harsh environments. We can offer ranges from +/- 0.005” to +/- 10.000”.

DC LVDTs feature built-in signal conditioning electronics meaning that they require no calibration or special signal conditioning. DC LVDTs are available in ranges from +/-0.02” to +/-2.000”

Spring return LVDTs, as the name indicates, have a spring loaded plunger and bearing assembly, this assembly allows for easy installation. AC and DC outputs are both available and ranges from +/-0.02” to +/-2.000”

LVDT Transmitters and Transmitter Systems are particularly suited to applications within power plants and industrial environments. These contain two wire looped powered sensors.

LVDT’s from Burster; Are also available from Ixthus and can be found in the Displacement Sensor section of our website. The 8739 uses a USB interface.

For more information please contact: Ixthus Instrumentation Email: Tel:+44 (0) 1327  353437 Fax: +44 (0) 1327 353564

Article date: Mon, 08 Jul 2019 15:29:02 +0100 GMT

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Title:Linear Potentiometer VS LVDT



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