| 摘要 |
The invention relates to a method of measuring rotational speed of a shaft, comprising the steps of: coupling an optical pickup to a shaft speed sensor having an indicator light that pulses proportionally to rotational speed of a shaft being measured by the speed sensor; receiving light pulses from the indicator light of the speed sensor; and determining the rotational speed based on the rate of received light pulses. Furthermore, the invention discloses a condition monitoring equipment for a wind turbine using the above measuring method. |
