Magnetic induction type measuring system of incremental encoder！

Magnetic induction measurement system is a permanent magnet magnetic tape as a detection element. The magnetic tape is formed by a thickness of about 0.01 to 0.02 mm
And a magnetic thin film having a pitch of 0.2 mm in length and arranged side by side on the base of the magnetic scale in the form of magnetic poles of NS, SN, NS, SN .... Basically, the magnetic poles must be equidistant. The voltage signal is a U-shaped lead with three sets of coils.
Magnetic material. The magnetically permeable material has two sets of alternating current with the carrier wave on the exciting coil. As a result, an ac voltage is induced in the receiving coil. The voltage strength of the magnetic head and the relative position of the magnetic foot changes, thus affecting the induced voltage. The two groups of heads are mounted to the north and south poles, respectively, and the output pattern of the two groups is exactly 90 ° out of phase, which can be used to count and identify the direction.
In practice, 30 inductive heads are mounted side-by-side so that they output a large signal and average the head-to-head error to improve the accuracy of interpretation to 1 μm. Magnetic induction measurement system can also be used in the disc way for angle or length measurement

absolute encoder, incremental encoder, hybrid encoder, magnetic scale,non-magnetic encoder

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