DIGITAL ANGLE TRANSFORMER Russian patent published in 2009 - IPC H04M1/00 

FIELD: physics; computer technology.

SUBSTANCE: invention concerns area of automatics and computer technology and can be applied for management of angular position of the controlled entity mobile parts. The invention reaches the result consisting in of the 2-phase angle transmitter rotor in target binary code N with a band of change 0…1, at use of 2-phase angle transmitters, with higher odd spatial harmonics (for example, to the ninth inclusive - sin3α, sin5α, sin7α and sin9α) with various corresponding weight factors - h₃, h₅, h₇ and h₉ present in enveloping voltage output. The technical result is reached for the account: use of the 2-phase angle transmitter with an additional winding of a reference voltage (the secondary winding parallel to a drive winding); forming of the first and second correcting voltage in the form of U_k1=minus (h₃+h₅)·sin4·2πN and an U_K2-minus (h₇+h₉)·sin8·2πN from an output potential of the specified basic winding; introduction of the first and second correcting voltage in the network of an error signal of a digital angle transformer for exception of transformation error components in the form of sin4α and sin8α.

EFFECT: maintenance of exact follow-up transformation of angular position of the 2-phase angle transmitter rotor in target binary code N with a band of change 0…1, at use of 2-phase angle transmitters.

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