| 摘要 |
PURPOSE: A method and an apparatus for measuring a pulse using a light wave with two wavelengths are provided to determine a movement frequency of a human by extracting a useful signal for the movement of the human. CONSTITUTION: A pulse measuring device(1) includes a first optical source(5), a second optical source(6), and a light detector(7). The first optical source emits a light wave with a first wavelength. The second optical source emits a light wave with a second wavelength. The light detector senses light reflected by the sink and blood vessel tissue. The light detector provides a measuring signal to a microcontroller unit(3). The first wavelength is different from the second wavelength.
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