Method for improving precision of output angle of magnetic encoder based on Hall effect
A magnetic encoder and Hall effect technology, applied in the field of improving the output angle accuracy of a magnetic encoder based on the Hall effect, can solve problems such as errors, the accuracy of the magnetic encoder cannot meet the expected requirements, and the influence of the BP neural network.
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[0052] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0053] In this embodiment, the method for improving the output angle accuracy of the magnetic encoder of the present invention is used for compensating the output angle error of a magnetic encoder based on the Hall effect. The actual output angle of magnetic encoder circuit is as the input signal of PSO-LM-BP neural network of the present invention, and the ideal output angle of magnetic encoder is as the teacher signal of PSO-LM-BP neural network, as figure 2 As shown, the specific steps are as follows:
[0054] S1: Construct LM-BP neural network structure:
[0055] Such as figure 1 As shown, the LM-BP neural network structure includes the input layer, the hidden layer (middle layer) and the output layer of the BP neural network, wherein the number of nodes in the input layer is S, the number of nodes in the hidden layer is J, and the numbe...
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