
Transmissive Optical Encoder Module
EM1 - U. S. Digital
The EM1 is a transmissive optical encoder module designed to be an improved replacement for the Avago HEDS-9000 series encoder module. This module is designed to detect rotary or linear position when used together with a code wheel or linear strip. The EM1 consists of a lensed LED source and a monolithic detector IC enclosed in a small polymer package. The EM1 uses phased array detector technology to provide superior performance and greater tolerances over traditional aperture mask type encoders.