Resolver Simulator in LabVIEW FPGA

Publish Date: Jan 14, 2010 | 1 Ratings | 3.00 out of 5 | Print | Submit your review

Resolvers are common sensors used in a wide variety of systems to measure and encode rotary position and motion. Resolvers encode their position by taking in a sine wave excitation signal and outputing two scaled copies of the excitation signal indicating the current position of the resolver. Internally different coils act as transformers for the sine wave and returning the output signals. A device or system can calculate the position of the resolver by measuring and processing the excitation and output signals.

Test applications, such as rapid prototpying and hardware-in-the-loop (HIL) systems, often must simulate resolver sensors. The attached examples demonstrate two methods for simulating resolver sensors using the LabVIEW FPGA Module and the NI PXI-7831R reconfigurable I/O device. One example generates both the excitation and output signals allowing the user to specify the frequency and amplitude of the excitation signal. The other example uses an external excitation signal and only generates the two output signals of the resolver based on the input excitation signal and the simulated resolver position. Both examples include the FPGA VIs and the host VI.

Related Links:
Resolver Tutorial
Resolver Input and Simulator in LabVIEW FPGA

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