| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve such the problem that when the conventional strain gauge is used as a blood pressure sensor, the conventional strain gauge cannot be easily used unless the influence of heat generation due to lattice scattering by electric current is removed. <P>SOLUTION: In the blood-pressure sensor system, a blood-pressure sensor 2 including a plurality of structures which induces surface plasmon resonance on a light-receiving plane of a photoelectric conversion element is attached to the outer wall of a blood vessel, in which when the blood-pressure sensor is deformed according to expansion or contraction of the blood vessel, the interval of layout of the structure is changed (widened or narrowed), so that the incident form of light with respect to the structures is changed to cause the output from the photoelectric conversion element to be changed. The output is measured as an open circuit voltage, and index calculation is performed, so that a blood pressure value is measured. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
