Magnetizing device and method achieving double-code-channel magnetizing
A magnetizing device, dual-code channel technology, applied in the direction of magnetic objects, electrical components, circuits, etc., can solve the problems of increasing costs and increasing the complexity of absolute encoder circuits, and achieve the effect of reducing burden and reducing costs.
Inactive Publication Date: 2014-09-03
SHANGHAI RENYWELL TECH
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Problems solved by technology
Absolute encoder chips are currently not provided with special chips, and are generally completed by adding detection circuits to incremental chips. Absolute encoders are based on incremental encoders and use external CPU (microprocessor) methods to obtain Incremental code and absolute code not only increase the complexity of the absolute encoder circuit, but also increase the cost of the chip structure
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[0028] In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0029] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present invention. As an actual size standard, the present invention is therefore not limited by the specific implementations disclosed below and the specific drawings.
[0030] like figure 1 The shown magnetizing equipment for dual-code magnetization includes a magnetizing mold 1, a magnetizing platform 2 for arranging the magnetizing mold 1, and a pressing plate 3, and the magnetizing ...
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Abstract
The invention discloses a magnetizing device and method achieving double-code-channel magnetizing. The magnetizing device comprises a magnetizing mold, a magnetizing platform and a pressing board, the magnetizing platform is used for placement of the magnetizing mold, magnetic tape can pass through the space between the magnetizing mold and the pressing board, the magnetizing mold is composed of an incremental magnetizing mold and an absolute magnetizing mold, the incremental magnetizing mold and the absolute magnetizing mold are respectively provided with a bottom board and a plurality of magnetizing poles which are vertically and linearly arranged on the bottom board, and the bottom board of the absolute magnetizing mold is further provided with side board coupled with the magnetizing poles of the absolute magnetizing mold. When magnetizing is carried out, the magnetizing poles and the pressing board compress the magnetic tape, a closed magnetic circuit is formed among the pair of magnetizing poles and the bottom board of the incremental magnetizing mold and the magnetic tape, the end faces of the side boards of the absolute magnetizing mold are tightly attached to the pressing board, and a closed magnetic circuit is formed among one magnetizing pole, the bottom board, the side boards and the pressing board; an incremental code channel and an absolute code channel are formed in the magnetic tape at the same time after magnetizing is carried out. The magnetizing device can achieve double-code-channel magnetizing.
Description
technical field [0001] The invention relates to a magnetizing technology of electromagnetic conversion, in particular to a magnetizing device for continuously magnetizing a corresponding code track on a magnetic tape. Background technique [0002] In many fields such as woodworking machine tools, ceramic equipment, metallurgical machinery, printing machinery, medical equipment, etc., the measurement of displacement parameters is very important. The existing displacement measurement technologies include grating technology, magnetic grid technology, ball grid technology, capacitive grid technology , magnetostriction, steel grid measurement, laser interference, etc., these technologies have their own advantages and disadvantages. Among them, the magnetic grid measurement displacement accuracy is high and the cost is low. At the same time, it is waterproof and anti-fouling, and it is more competitive. [0003] The magnetic scale measuring device is composed of a sensor reading h...
Claims
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IPC IPC(8): H01F13/00
Inventor 张伟张磊
Owner SHANGHAI RENYWELL TECH