Design Factors for Hydraulic Linear Actuators
A Linear
Actuator generally refers to apparatuses
that adapt electro-rotational motion into linear motion. Hydraulic linear
actuators are devices where an unbalanced fluid compression of the piston can
generate a force great enough to move an external object. The size and
noise of gas compressors and inclination to leaks at high pressure marks fluid
mediums as the best implementation for large force application. Since
hydraulic fluid oils are nearly incompressible, a hydraulic cylinder can
provide controlled precise linear displacement of the piston for many kinds of
applications.
Hydraulic
Linear Actuator Position Sensing
Heavy duty machinery requires linear
actuators to provide accurate position sensing while functioning in some of the
most corrosive environmental conditions. Extremely high oil pressure
coupled with heat, harsh salt and sand, sea water, EMI, and constant
multi-frequency vibration mean that these hydraulic actuator assemblies must
have sealing and mechanical designs that minimize the number and complexity of
moving parts while providing consistent position sensing.
The CPI SL series of linear
position sensors is based on an enhancement to the
decades old draw wire sensor technology. Our LVDT technology converts the
linear motion of the piston into the rotary movement of the spool which then
converts into linear displacement signals accurate to 1mm of position. Our
system can provide absolute position measurement removing the need for
calibration. CPI sensors are designed to omit core drilling of the piston
for insertion.
Success
with CPI Sensors
Specialized military and industrial
markets have relied on Control Products Inc. switch and sensor designs for half
a century. All our products are made and manufactured in the USA. If you are in
need of a hydraulic linear actuator that requires reliability and longevity in
extreme conditions, then look no further then CPI.
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