What is the role of the grating in a linear motor? Want to know this problem, we will look at Tongmao official website of the company news, because Tongmao Xiaobian introduced the meaning and composition of the grating ruler, where I briefly mentioned. Leaving Tongmao Xiaobian not read the previous article and feel confused Ha.
Grating ruler, also known as a grating ruler displacement sensor or a grating ruler sensor, is a measurement feedback device that operates using the optical principle of a grating. The grating ruler is often used in closed-loop servo system of CNC machine tools, which can be used as linear displacement or angular displacement detection.
Generally according to the requirements of the organization's accuracy, with the selection of the appropriate grating to form a closed-loop feedback, linear motor and grating ruler accuracy roughly determines the positioning accuracy of the entire system.
Grating encoder is a commonly used position, speed sensor, commonly used in the servo servo system to do the feedback components. The precision of the grating encoder plays a crucial role in the performance of the system.
Raster encoder, circular and linear, round called the code wheel, linear type called grating. According to demand, choose the appropriate grating.
Linear grating encoder, when selected, the main is to select the resolution, large speed, accuracy. There are metal grating and glass grating, metal grating, there is no length limit, a certain degree of curvature, easy installation. Glass grating ruler does not limit the length of the metal that can be bent, etc., but the glass grating ruler than the accuracy of the metal.
Grating is a high-precision linear displacement sensor, the light source, condenser, scale grating, indicating grating and silicon photovoltaic cells and other photosensitive components. The grating ruler is the most used measuring device in the closed-loop control system of CNC machine tool. Grating ruler is usually used by two different grating length matching, of which the length of the main grating or ruler grating, which is installed on the moving parts of the machine, requiring rain stroke length, a short one is called the indicator grating, grating and instructions Light source, lens, photosensitive element installed in the grass temple head, mounted on the fixed parts of the machine.
Linear motor with high acceleration and deceleration, remote inertia, high sensitivity, high system stiffness, grating scale is a closed-loop control system measuring device. Grating is just a feedback system. Such as stepper motor with ball screw platform can also add grating as a feedback. Linear motor, voice coil motor It is necessary to use grating feedback. In order to achieve full-closed, sometimes with the servo motor, the grating will be added to the body. Generally selected motor, according to the accuracy of the agency requirements, with the selection of the appropriate grating form a closed-loop feedback.
Kunshan Tongmao Electronics Co., Ltd. is a professional R & D and manufacturer of high performance and high quality linear and oscillating motion solutions. Its main products are linear motors, voice coil motors and high precision linear modules. Our independent research and development and production High-precision linear module has many large domestic and international customers recognized and identified. The company will make unremitting efforts to promote the development of China's industrial-driven industries, is committed to being a trusted supplier of linear motor manufacturers, continued to create value for customers.
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Linear motor