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Research for new method for hi
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2009-09-09
世态薄凉
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This paper explores a kind of new method of high-precision non-contact
measurement of rotate speed, to acquire data with a laser CCD displacement sensor, and
separate the low-frequency signal and high-frequency noise of the signal with the
small-wave multi-frequency analysis method, to pick up the frequency for the separated
low-frequency signal as the Nquist sampling theorem, to get the rotate speed to be
measured. The experiment has proved this measurement method has the very good
feasibility and effectiveness.
measurement of rotate speed, to acquire data with a laser CCD displacement sensor, and
separate the low-frequency signal and high-frequency noise of the signal with the
small-wave multi-frequency analysis method, to pick up the frequency for the separated
low-frequency signal as the Nquist sampling theorem, to get the rotate speed to be
measured. The experiment has proved this measurement method has the very good
feasibility and effectiveness.
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