PROBLEM TO BE SOLVED: To provide a biological measuring apparatus and a calibration tool reducing the quantity of the work for the measurement for calibration.SOLUTION: The biological measuring apparatus comprises a plurality of optical fibers 11 (light emission ends) for emitting light to a measured region a plurality of optical fibers 11 (light detection ends) for receiving diffused light from the measured region a vessel 3 having a measurement space 3a for storing the measured region to support the light emission end and the light detection end toward the measurement space 3a an internal information calculation part for calculating internal information based on the diffusion light coming into the light emission end the detachable calibration tool 12 having a light diffusing target 13 facing the measurement space 3a, configured to cover an opening 3b of the vessel 3 and a calibration data calculation part for calculating calibration data for the plurality of light detection ends respectively based on the diffusion light coming to the light detection ends from the light diffusing target by the light irradiation from the light emission end. The internal information calculation part calculates the internal information based further on the calibration data.COPYRIGHT: (C)2009,JPO&INPIT【課題】校正用計測の際の作業量を低減できる生体計測装置および校正治具を提供する。【解決手段】生体計測装置は、被計測部位へ光を出射する複数の光ファイバ11(光出射端)と、被計測部位からの拡散光を受ける複数の光ファイバ11(光検出端)と、被計測部位を収容する計測空間3aを有し、光出射端および光検出端を計測空間3aへ向けて支持する容器3と、光検出端に入射した拡散光に基づいて内部情報を算出する内部情報算出部と、計測空間3aに面する光拡散性ターゲット13を有し、容器3の開口部3bを覆うように着脱可能に構成された校正治具12と、光出射端からの光照射により光拡散性ターゲット13から光検出端へ入射した拡散光に基づいて、複数の光検出端それぞれについて校正用データを算出する校正用データ算出部とを備え、内部情報算出部は、校正用データに更に基づいて内部情報を算出する。【選択図】図9
