Structure and working principle of grating displacement sensor！

Structure and working principle of grating displacement sensor
           Grating displacement sensor if you have contact with it? Grating displacement sensor main play its role in the servo system, the working principle and the product structure grating displacement sensor is what like? The following Chinese sensor trading network of experts to tell you about the principle and structure of products grating Displacement Sensor.

Grating, also referred to as grating displacement sensor (encoder sensor), is the use of an optical grating feedback device measuring principle. Scale often used in CNC machine tools, closed-loop servo system, it can be used as the linear displacement or angular displacement detection.

The measurement signal into a digital pulse output with detection range, high precision, fast response characteristics. For example, in CNC machine tools often used to coordinate the tool and the workpiece is detected, and to observe the effect of motion tracking error error passes to play a compensation tool.

Grating according to the manufacturing method and optical principles, divided into transmission grating and reflection grating.

Structural grating Displacement Sensor

Grating scale grating and the grating by reading the first two parts. Scale grating generally fixed on the machine moving parts, raster scanning head mounted on a fixed machine part, mounted on the index grating raster reading head.

A key part of the grating structure of the grating detection means detecting apparatus is a raster reading head, which consists of a light source, a converging lens, indicating gratings, optoelectronic components and adjustment mechanism and other components. Many forms of reading head grating structure, according to the reading head into the structural characteristics and use the occasion to directly receive formula Readhead (or silicon photocell reading head, mirrored reading head, type spectroscope reading head, metal grating reflective reading head).

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