In addition, the company is a major supplier of custom designed solenoids (SRE) and servovalves ( Atchley Controls), and has been reported to be developing an excitation source for use in seismic surveys.
Modeling of a pneumatic actuator through long pneumatic lines for teleoperation purpose
In this work, two proportional servovalves Atchley .
Modeling, identification, and control of a pneumatically actuated, force controllable robot
 R. Atchley , Servovalve Model 211APN, Typical Performance Specifica-
Oil hydraulic system
Outside low dirt sensitivity the higher driving pressure yield brings a lesser method of construction with itself (e.g., jet-Pipe servovalves , Atchley of Controls ).
Modeling tool for design and simulation of complex mechanical systems
An Atchley jet-pipe servovalve , model 21 1A, under proportional integral control with a
Yates hydraulic cylinder was modeled.
Design and control of an autonomous bendable tip for colonoscopy
To control the various pressures in the bellows, we used three ATCHLEY Jet-pipe servovalves .
Two-axis hydraulic joint for high speed, heavy lift robotic operations
R.D. Atchley , "A More Reliable Electrohydraulic Servovalve ," Society of Manufacturing
Engineers, Robots VI Conference Proceedings, MS82-201, (1982).
Speed control of an air turbine
The hardware incorporated into the MBC 500 magnetic
bearing system includes: a bi-directional air turbine with
turbine housing, a rotor quadrature optical encoder, an Atchley Controls 204PN precision two-stage pneumatic servovalve , and turbine interface electronics which includes
...a goal of further work in this area, as the design and construction of servovalves is a highly refined art, and constantly being improved upon by experienced people ( Atchley .
On-line fault diagnosis of hydraulic systems using Unscented Kalman Filter
...referred to as chamber 1 and chamber 2, and are
connected to an Atchley Controls®
servo-valve. ...Lawrence, and F. Sassani,
“Nonlinear modeling and validation of solenoid-
controlled pilot-operated servovalves ,�? IEEE/ASME