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 Simply stated, magnetostrictive materials
change shape when subjected to magnetic fields. Magnetostrictive sensors
makes use of this property to measure position in a variety of
situations. First, magnetostrictive sensors monitor the position of a
stir-welder head to produce double-curvature welds on materials less
than 1-mm thick. Then, hydraulic levelers with embedded magnetostrictive
sensors control the position of rollers. Lastly, magnetostrictive
position sensors with smart interfaces show how they work in harsh
environments prone to high vibrations.
- Sensors keep friction-stir
welds on track
- Feedback for hydraulic
levelers
- Smart linear sensors
- New products
— Robert Repas
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The first friction-stir welding system able to perform
load-controlled welds along three independent axes uses a
magnetostrictive position sensor to help produce welds with double
curvature, join materials less than 1 mm thick, and join materials of
varying thicknesses.
Read more...
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Magnetostrictive sensors can be embedded inside or affixed outside
the hydraulic cylinders that control the leveling machine movement for
producing metal plates and slabs. The R-Series SSI sensor ensures the
precise position of rolls throughout the leveling process to produce a
smooth, flat slab that is level and within specifications.
Read more...
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Analog sensors may not always be low-maintenance and, of course,
they have no means of communicating with external control systems. Fast,
small and powerful digital "smart" sensors with a built-in synchronous
serial interface can function in super-harsh uses such as die-casters
and other areas prone to extreme vibrations. Get an overview of the
basics on the new magnetostrictive linear-position sensor equipped with
SSI in this extensive white paper
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The Temposonics R-Series EtherCAT sensor sends position data from
the plant floor for use in process control and design automation. This
non-contacting industrial sensor has an accuracy of 1 micrometer, speed
to 0.2 mm/sec, an update time of 100 microsec, multi-magnet position
measurement and LEDs for sensor diagnostics. Typical uses are on
injection molding machines, high-speed presses, and packaging
environments.
Read more...
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The R-Series SSI encoder position sensor from MTS Sensors features
fast data processing and accurate sensing for servo control
applications. With resolution as low as 1 micron and variable housing
options like NEMA Type 4X and ATEX and UL approval, the sensor delivers
speed and accuracy in even the harshest environments. Machine tool,
plastic injection and metal production equipment are typical
applications.
Read more...
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MTS Sensors linear-position sensors can generate up to 20
simultaneous position outputs along a sensing element, allowing for
multiple-axis feedback along the same plane of motion. The result: a
lower per- tool cost of feedback, higher machine productivity, faster
set up time and high resolution and accuracy. This technology works well
for applications such as injection molding machines, slitters, printing
presses, and other specialty machines.
Read more...
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Editorial questions: msdeditor@penton.com
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Machine Design
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