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The ability to measure linear displacement over an extended range means that the AML-SGD products can now access applications in R and D, machine build, automotive, marine and geotechnics.

With the existing AML-SGD products starting as low as 0-5mm and measuring up to 50mm over four models, the latest introduction measuring 0-100mm is the result of increased demand from customers preferring to use a strain-gauge-based measuring system.

Based on a four-arm Wheatstone-Bridge design with a nominal impedance of 350Ohms, the design ensures non-linearity, low power consumption and temperature stability.

The characteristics of strain-gauge-based sensors are said to provide higher-accuracy linear sensing than that of less accurate and lower-resolution LVDT sensors.

Because these sensors operate at similar voltage levels and produce output signals compatible with other commonly used strain gauge sensors such as load cells and pressure transducers, they can easily form part of the same measurement chain in one central instrumentation system.

These displacement sensors operate on low-cost DC strain indicators or digital voltmeters, whereas standard LVDT transducers require conversion of the signals to achieve the same level of compatibility.

Strain-gauge-based displacement transducers exhibit typical non-linearity errors of a quarter of that of typical LVDTs.

As with other strain-gauge devices, the resolution is infinite and strain sensitivity is constant with a stabilised input voltage between 1.5 and 15V DC.

Fugro Offshore Geotechnics uses these sensors within its accredited soil-testing laboratories.

It is within these establishments that subsea soil samples are analysed and the sensors are used – together with submersible load cells, also from Applied Measurements – to monitor compression of the sample relative to the force applied.

The range of AML-SGD displacement sensors are precision assemblies contained within a rugged stainless-steel outer casing.

The internal construction of the AML-SGD transducer ensures a smooth, virtually frictionless movement of the inner core, resulting in high overall accuracy of less than +/-0.1 per cent.

The return force of the spindle is maintained at a minimum level for effective operation when installed upside down, without having to attach the spindle to the subject.

This makes the sensor less intrusive to the application when measuring on soft or pliable materials.

The AML-SGD product is completely serviceable by the manufacturer in the event of damage in use.

Applied Measurements

Applied Measurements offers a comprehensive range of loadcells, force sensors, weighing systems, pressure sensors, torque transducers, LVDTs and displacement transducers along with associated instrumentation.

Applied Measurements offers a comprehensive range of loadcells, force sensors, weighing systems, pressure sensors, torque transducers, LVDTs and displacement transducers along with associated instrumentation.

UKAS-traceable calibration can also be offered on all of our sensors and systems. We specialise in the manufacture of non-standard products and if one of our standard sensors is not exactly right for your application then we can design and build a customised product, tailored precisely to fit your requirements.

All products that we supply are backed up by our extensive in-house expertise and our standard three-year warranty.

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