| 摘要 |
PURPOSE: To reduce errors in measurement, and thereby enhance accuracy in measurement by computing a scattering factor and an absorption factor within a scatter absorbing body based on the simultaneous relation-ship composed of a computed value and a theoritical formula for an average light path length. CONSTITUTION: A light source 30 emits measuring light P0 of wave lengthsλ1 throughλN-1 for the number N of the kinds of absorbing constituents contained in a scatter absorbing body 10. Light P0 which is injected from a light guide 70, and diffused and propagated within the absorbing body 10, is emitted to light detectors 41 and 42 taken by light guides 71 and 72. In this case, distances between a light incident position and a light detected position over the surface of the absorbing body 10 are set to beρ1 andρ2 respectively. Light P0 is processed by photoelectric conversion, measured by time resolution, and detection signals M1 and M2 are thereby outputted. An operation processing unit 50 computes the average light path lengths L (ρ1 ) and L (ρ2 ) of the light P0 in response to the respective wave lengths of the light P0 and the distancesρ1 andρ2 based on the signals M1 and M2 . Besides, based on a plurality of simultaneous relationships composed of these average light path lengths and respective theoritical formulas, transport scattering factorsμrs (λ1 ) throughμrs (λN-1 ) and absorption factorsμA (λ1 ) throughμA (λN-1 ) are computed 52.
|
