At Gurley Precision Instruments, measurement is our business. GPI was one of the first companies to develop the chrome-on-glass process necessary to manufacture optical encoder discs, and has since been a significant provider of optical encoders, precision optics, and a number of related devices. Our commitment to measuring excellence is still very much alive today - as we offer as many standard and custom encoder options as any company in the business. Incremental, absolute, and Gurley's own "Virtual-Absolute" technologies can be put into enclosed and modular rotaries, as well as linear configurations. Each is available in prototype and OEM quantities.

Gurley's capabilites in custom optics also have a long history of their own. With lower overhead than most of our competitors, and a culture of high quality and value, GPI has become a low-cost alternative for optical components of all types. Spherical, aspherical, and achromatic lenses, prisms, mirrors, and beamsplitters, are just some of the optics the Gurley team manufactures for our customers. 

Industries that have benefited from Gurley encoders and optics include:

Precision In Air, On Land and Sea - general aviation and defense industries.

Precision on the Factory Floor - position, speed and direction, in a wide variety of industrial processes, from the slow and simple to the high speed and complex.

High Powered Laser and Imaging - top of the line particle-counting, chemical detection, and vision systems.

Bringing the Electronic Image to Hand - high performance for the printing and graphic arts industries.

A Common Denominator in Instrumentation - measuring instrumentation includes products such as dynamometers, gear checkers, torque testers, coordinate measuring machines (CMMs) and cam profilers.

Increasing Machine Tool and Robotics Productivity - Gurley encoders are designed to handle harsh environments while delivering undiminished performance. 

Tracking and Positioning in the Sky - radio and optical telescopes, radar pedestals, tracking mounts and communication antennas.

At The Heart of Medical Diagnostics - Gurley's high-reliability encoders are essential in scanning instruments for MRI, x-ray and nuclear imaging systems, as well as fluid analysis devices.

Gurley is an ISO 9001 certified and ITAR registered company.