Magnetics Business & Technology - January/February 2025 - 25

INDUSTRY NEWS
Customizable high-resolution performance for OEM equipment is
one of the company's hallmarks with more than 30% of its sensor
business serving the OEM market, tuning its technology to specific
applications.
Kaman's advanced magnetic sensing precision non-contact measuring
systems are designed to detect magnetic materials through
non-magnetic barriers. They detect target position through
non-magnetic, conductive, and non-conductive barriers. Shown is
AMS-3000.oxygen
is excited by a high frequency oscillator, which generates an electromagnetic
field that couples with the target. Signal conditioning
electronics sense impedance variation as the gap between sensor
and target changes and translates it into a usable displacement
signal. This technology provides extremely high (sub-micro inch)
resolution.
Eddy current sensors can " see through " non-conductive materials,
making these sensors useful in such applications as paint, rubber,
and paper thickness. They can also be a good option for operation
over a wide variety of temperatures and environments, including
dust, oil, gas, diesel fuel, liquid oxygen, and rocket fuel.
Another Kaman unit, Bal Seal
Engineering which Kaman
acquired in 2020, also has
strong ties to magnetic technology,
particularly related to
electromagnetic interference
(EMI). With the Bal Spring
canted coil spring, engineers
can protect sensitive electronics
in their designs from the
harmful effects of conducted
or radiated EMI and radio frequency interference. Its independent
coils serve as multiple contact points for optimal conductivity in
shielding applications, even under shock and vibration. It provides
effective attenuation across a broad EMI spectrum, but is particularly
effective in high-frequency, small-package applications.
New self-configuring inductive signal conditioner technology can
be used with a wide range of sensors for condition monitoring of
industrial processes and equipment.
Inductive technology is used for many higher performance sensor
applications, especially those needing higher frequency
responses in challenging environments and temperatures. They
allow operators to monitor a machine and determine when it has
to be taken offline for maintenance. Conversely, the sensor may
indicate that the machine is running well, so maintenance is not
yet required. If, for example, the machine in question is a critical
pump operating in an inaccessible location, precise information on
machine condition can be critical to a company's bottom line.
www.MagneticsMag.com
As downhole oilfield tools get smarter by design engineers packing
more electronics into them, Bal Seal's canted coil springs are being
used to shield the sensitive electronics from EMI.
For more info, see www.kaman.com.
January/February 2025 * Magnetics Business & Technology 25
http://www.kaman.com http://www.MagneticsMag.com
Magnetics Business & Technology - January/February 2025

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