A Guide For Magnetic Linear Encoder Manufacturer

Encoders typically use either optical or electromagnetic systems to measure, whether rotary or linear, absolute or incremental. As of late, magnetic encoders have become competitive with optical encoders in many applications that used optical encoders previously. Optical encoders were traditionally the preferred technology for high-resolution applications. The physical properties of electromagnetic technology also make magnetic encoders among the most popular choices in industrial settings by magnetic linear encoder manufacturer.

What are Linear magnetic encoders?

A linear magnetic encoder works similarly to a rotary counterpart, except that instead of a rotatable ring, it uses a linear scale with an adhesive backing. To determine the scale’s position, either a Hall effect sensor can be used or a magnetoresistive sensor. The positions on the scale represent individual binary words that represent the exact linear position of the read head. There will be a reference mark or references on the scale for incremental versions, so that homing will function after power off. Certain manufacturers offer magnetic linear scales up to 100 metres in length.

Magnetic Linear Encoder Manufacturer in Metalworking

A common application for glass scale systems to detect position in machine tools is CNC axis control. Modern machine tools are based on these sensor principles and can operate with a resolution of up to sub micrometres. In metalworking, several applications do not require expensive but high-end measuring systems.

Loading and Unloading of Workpieces

Workpiece load and unloading processes that are highly automated require hundreds of millimetres of repeatability in the motion axis position. When the workpieces are handled with this level of precision, they will be handled accurately and reliably. Optimal performance and cost can be achieved with magnetic linear encoder systems.

A glass scale system has a lower total cost of ownership than a glass scale system due to its lower price point and much easier installation. We offer both incremental and absolute output signals for these magnetic linear encoder systems. Quadrature and sinusoidal signals are available for incremental outputs. These outputs are configured to work with industry-standard interfaces like the SSI and BISS. A serial interface, the IO-Link, has gained an increasing amount of popularity in recent years.

In addition to being non-contact, wear free, and designed for an extended operating lifetime, the system allows a certain tolerance in alignment. This is particularly important when the axis length is several metres long.

Position sensing at rotating applications

CNC controls were typically used with three axes (X-, Y-, Z-). Since 5 axis solutions offer more flexibility in manufacturing, they have become more popular in recent years. Additionally, these machines are more efficient because they often allow the machining process to be carried out without the need to manually change the orientation of the workpieces.

System design such as rotary tables and swivel tables improves machine tool performance significantly. These mechatronic modular systems are made possible by the compact design of magnetic rotary encoder systems. Magnetic rotary encoders have another advantage because they have a generous centre of gravity that allows ample space for coolants as well as power supplies and signal lines.

Summary

Aside from traditional 3-axis glass scale systems for control of CNC machines, magneto-encoder systems are increasingly used in the automation of metalworking processes in machine tools due to their compact designs, cost-effectiveness, and ease of installation. Efficiency and flexibility are driving factors in developing new machine tools by magnetic linear encoder manufacturer. Magnetic encoders can be relied upon to meet these requirements.

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