Coding and magnetizing method for magnetic railing ruler with irregular coding

Abstract

The invention discloses a coding and magnetizing method for a magnetic railing ruler with irregular coding, which comprises the following steps that A, N and S magnetic pole codes of the magnetic railing ruler are stored in a memory, and each m bytes in the memory record a segment of coding information containing magnetic poles and the number of reference pole widths of the magnetic poles which are continuously arranged; B, the magnetic railing ruler to be magnetized is installed in a magnetizing tool, and the magnetizing tool comprises a magnetizing power source for providing current for a magnetizing head coil and a displacement motor for changing the relative position of the magnetic railing ruler and a magnetizing head; C, the controller reads the multiple segments of coding information stored in the memory in the step A, and therefore a set of N and S magnetic pole coding magnetizing information arranged in the length direction of the magnetic railing ruler is obtained; and D, according to the magnetizing information obtained through analysis in the step C, the controller controls the change of a magnetizing power source and the movement of a displacement motor, and a finished magnetic railing ruler is obtained. The magnetic railing ruler with irregular codes can be magnetized precisely and efficiently.

Description

technical field [0001] The invention relates to the technical field of magnetic scale magnetization, in particular to a coded magnetization method for an encoded irregular magnetic scale. Background technique [0002] Magnetic scales are widely used in photovoltaic energy, wood processing, textile machinery, papermaking machinery, transmission systems, forging machinery, shearing machines, food packaging, building materials machinery and other fields. Nowadays, it is favored by more and more users. The traditional magnetic scale is an infinitely repeating equidistant N-S pole with coding rules and the same level of magnetic induction under each polarity. With the expansion of the application field, the requirement for the accuracy of the coding is getting higher and higher. The codes generated by the function, such as N-N-S-N-S-S-N-S-N-N-N-S-S-N-S-S-S-S-S... The irregular magnetic scales with long lengths and different magnetic induction levels under each polarity, which br...

AI Technical Summary

Problems solved by technology

There are two conventional magnetic scale magnetization methods, one is to use a multi-pole magnetic head that matches the shape of the magnetic scale to magnetize it at one time. Magnetic scales with small size and different levels of magnetic induction under each polarity are magnetized; the other is to use a unipolar magnetic head to magnetize the magnetic scale step by step, which can be changed by changing the direction of the power supply current to the magnetic head. Realize equidistant N-S pole infinitely repetitive magnetic scale magnetization, but for long length and irregular coded magnetic scale scales, this magnetization method not only has low magnetization efficiency, but also cannot know the specific changes in the power supply current of the magnetic head Timing, therefore, at present, it still relies more on the multi-pole magnetizing head to magnetize it at one time, but the magnetization accuracy is not high

Images