Force Sensors
Proximity Sensors
Kavlico force transducers consist of a precisely machined
spring and internally placed LVDT(s). The compression or
tension movement of the spring deflects the LVDT. The
voltage output and signal is calibrated to correspond to
the force input. Force sensors can be supplied as single
or multiple channel devices.
For aerospace environments, Kavlico manufactures
inductive proximity sensors for the same demanding
aerospace environments as our linear position sensors.
All Kavlico force sensors are customized for the load and
performance requirements of each aircraft platform.
Boeing series B717, B727, B737, B747, B757, B767, B777,
B787, G200 and C-17 aircraft models currently use Kavlico
force sensors for control wheel steering and pilot force
measurements in compliance with FAA Parameter 88
requirement for flight data records.
Linear Variable Differential
Transformers (LVDTs)
Rotary Variable Differential
Transformers (RVDTs)
Kavlico is the single-largest source for LVDT aerospace
sensors in the world. Kavlico LVDTs operate using a
non-contacting mutual induction principle, providing
friction-free motion and nearly infinite resolution.These
sensors have been refined and improved for over 50 years,
making Kavlico LVDTs the standard for flight and fuel
control position measurements.
Kavlico RVDTs are the industry standard for rotary
measurements in aviation applications. The lightweight,
robust sensors are capable of ±80˚ angular range in single
or multiple channel designs. RVDTs with integral gear
heads are available for applications with higher angular
displacements or multiple revolutions. DC/DC channel
RVDTs are available for a variety of aerospace applications.
Kavlico is the largest manufacturer of matched multiple
channel sensors for redundancy. Multiple channels are
provided in a variety of housing designs that can be
directly mounted on the airframe control surfaces and
cockpit controls, or provided as an integral part of a
servo valve or main ram actuator.
Specializing in designs for harsh environments, Kavlico
RVDTs have been qualified for many high vibration,
pressurized aerospace applications.
Over 1 million Kavlico LVDTs are installed in aircraft
worldwide.
Typical LVDT & RVDT applications include position feedback
for numerous commercial and military aircraft systems,
including flight control actuators, valves, nose wheel steering
systems, cockpit controls, engine bleed air systems, fuel
controls, fly-by-wire systems, brake-by-wire systems, and
environmental control systems.
Kavlico has developed and produced differential
pressure sensors incorporating bellows with an
integrally installed LVDT. This combination produces
a highly accurate differential pressure sensor that can
withstand wet-wet corrosive fluid in a high temperature,
pressure environment.
Cockpit Controls
Industrial Power Turbine Controls
Kavlico designs and manufactures an extensive line of
cockpit/pilot control devices that meet the small envelope,
minimum weight, and high reliability demands of today’s highly
competitive aerospace industry. These uniquely designed
devices incorporate our stainless steel RVDT sensors within,
and are housed with an aluminum casing. Kavlico understands
that every gram counts, so our devices utilize lightweight
materials wherever possible, improving fuel efficiency and
providing cost savings to you, our customer.
Extensive use of Kavlico LVDT and RVDT sensors in the
aircraft engine industry has given us a strong position in
the power generation turbine industry. Typical baseline
uses of our sensors include valves, actuators, and stator
guide vane systems for both gas and steam turbine
systems. Many of our sensors have been qualified and
approved by Factory Mutual, IEC-CENELEC, and ATEX
requirements.
When it comes to quality and reliability, Kavlico prides itself
in going over and above the requirements of our customers’
specifications. With aggressive and extensive testing, we
push our devices beyond their limits, preparing each custom
product for even more severe environments than expected.
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Speed Brake
Landing Gear Control (LGC)
Steering Handwheel (SHW)
Single Engine Thrust Control
Flight Spoiler Control Lever (FSCL)