Linear encoders

Wilmington, Mass. —This noncontact linear encoder uses reflective optical diffraction technology. Said to digitize linear motion down to resolutions of 0.0001 in., and 0.005 mm, these units offer travel lengths up to 48 in. At 0.5 in. high by 1.8 in., long. Model LDK fits into most space restricted applications.

Wilmington, Mass. — This noncontact linear encoder uses reflective optical diffraction technology. Said to digitize linear motion down to resolutions of 0.0001 in., and 0.005 mm, these units offer travel lengths up to 48 in. At 0.5 in. high by 1.8 in., long. Model LDK fits into most space restricted applications. Reflective optics permit mounting the glass scale on most flat surfaces parallel to the direction of motion. Electrical outputs are TTL line-driven square waves in quadrature with optional index in lengths up to 5 in. www.drc.com Dynamics Research Corp.