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  • MR318
Jul 2009
Micronor Inc.Request Info
Fiber Optic Rotary Encoder
NEWBURY PARK, Calif., July 30, 2009 – Micronor Inc.’s MR318 fiber optic rotary encoder is designed specifically for use as feedback in motion control systems operating in extreme electromagnetic fields. The sensor's 100 percent passive sensing optical design and nonmetallic construction have no effect on magnetic resonance imaging (MRI) or nuclear magnetic resonance system operation or measurements.

Micronor.jpgThe multiturn encoder system offers 360-ppr (1°) resolution and measures both angular position and shaft speed. MRI-related applications include feedback for actuator or motor control, monitoring patient position and correlating foot pedal position for functional MRI diagnostics.

The rotary sensor uses an industry-standard 58-mm synchro housing and is installed just like a standard encoder. The sensor optically connects to the MR310 module via a multimode fiber optic link that is up to 1000 m long. The module operates from 15 to 32 VDC and offers a range of standard interface options, including: A/B quadrature outputs (push-pull and line driver), programmable analog outputs (4 to 20 mA and ±10 V) and RS-422/RS-485 serial interfaces.

Insensitive to electromagnetic and radio frequency interference and immune to the electrical static that zaps convention encoders, the encoder is designed to operate in ambient laboratory environments.

For more information, visit:  

Micronor Inc.
750 Mitchell Road
Newbury Park, CA 91320
Phone: (805) 499-0114
Fax: (805) 499-6585


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The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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