| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a biological signal measuring instrument for suppressing the light reception of light not transmitted through the vessel of a measurement object detected in a light receiving part low and realizing highly accurate biological signal measurement. <P>SOLUTION: One light receiving part 105 not measured yet among the plurality of light receiving parts is selected S801, the light receiving part 105 is made to function and measurement is performed S802. AC components and DC components are extracted from a measured value S803 and stored in a memory 107 S804. When the measurement of an AC-DC ratio is ended in all of the plurality of light receiving parts 105 in S805 (YES in S805), all the AC-DC ratios stored in the memory part in S804 are compared S805, and the light receiving part of the best value is selected S806. Since it is suitable for the measurement of an oxygen saturation when the AC (amplitude of signal) components are larger and the DC (DC of signal) components are smaller, the light receiving part where the value of AC-DC ratio is largest may be selected. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
