optical encoder

optical encoder

[′äp·tə·kəl in′kōd·ər]
(electronics)
An encoder that converts positional information into corresponding digital data by interrupting light beams directed on photoelectric devices.
References in periodicals archive ?
Tenders are invited for Patson Machine Optical Encoder
Limited Tenders are invited for Supply Of Optical Encoder With 1Mtr.
These units are designed to provide users with the performance accuracy and convenience of an optical encoder combined with ruggedness and durability.
The integrated direct measuring optical encoder resolves angular motion down to 9prad.
A linear optical encoder ensures stable, accurate, high-resolution displacement measurement across the full travel range and enables displacement control of 5 nm.
These components utilize a flexible cable, a spring-loaded spool, and a sensor (an optical encoder with incremental, absolute, analog or potentiometric output or, in some cases, a Hall effect sensor).
The main contribution of this work is the design of a noise suppression system to obtain a high-performance low-cost optical encoder (HPLCE), to be used in engineering fields where high accuracy, precision, and resolution, along with an excellent maximum response speed, are required to measure angular positions.
(2.7 N), and peak force of 30.7 oz (8.5 N).This non-commutated direct-drive servo motor features quiet long life plain linear bearings, an integrated internal (1.25-micron resolution) quadrature optical encoder with differential outputs, and a non-rotating shaft.
To overcome the limitations of LVDT encoders, the system uses an optical encoder for better signal stability and higher accuracy.
Installing a commutation optical encoder onto a brushless dc motor (BLDC) can be an iterative and time-consuming process as the optical disk must be physically and precisely rotated to align with the correct motor windings.
The new type 34B4/FV-5N gearmotors combine Bodine's 34B brushless dc motor with a right-angle gearhead, a built-in PWM speed control, and an optical encoder. Gearmotor power is 1/4 hp (107 watts), with continuous torque up to 104 lb-in.
The company says, "The Acanto Absolute Length Gage with EnDat 2.2 provides the benefits of an optical encoder and solves many of the problems of different length gages.