| 摘要 |
Laser displacement meter for measuring a displacement of an object such as a moving distance, a moving angle, and a moving speed. The meter has a generator circuit for generating a displacement signal; another generator circuit for generating a first signal which corresponds to R sin(theta) value of the displacement signal, and a second signal which corresponds to R cos(theta) value of the displacement signal (R represents an amplitude, (theta) represents a phase of the displacement signal); a memory for storing a displacement value being defined by the first signal and the second signal where (theta) is between 0 and 2(pi); a circuit for transferring a position signal corresponding to the displacement value from the memory according to the first signal and the second signal; a counter for counting a number, being defined as dividing (theta) by 2(pi), corresponding to the displacement signal and for determining the displacement of the object according to the counted number and the position signal.
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