| The thesis is to investigate a way of how to accurately measure the velocity.Chebyshev equivalent ripples numeral band-pass filter is used to deal with thepulse signals measured, and it can eliminate possible interference factors whichinclude dithering or slippage. The comparatively whole deduced expressions andflow chat of arithmetic are showed in the thesis, and PLC is used to program, andachieves the emulator of the Chebyshev filter in virtue of Matlab. The curve ofscope frequency basically satisfies our designed requirement, and it improves themeasure precision of velocity in a certain extent. |
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