| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a curing degree measuring method for a resin sheet material, capable of measuring the curing degree of the resin sheet material, on the basis of the intensity of infrared rays measured by irradiating the resin sheet material fed continuously, such as, a prepreg with infrared rays that differ in the wavelength region over a plurality number of times, and is capable of measuring accurately the degree of curing, without being affected by the changes in the partial resin amount, in a sheet-like base material. <P>SOLUTION: The resin sheet material 1, containing a resin and having a sheet-like form is, successively irradiated with infrared rays L of a wavelength region of the respective absorption wavelengths of a plurality of the functional groups in the resin sheet material 1, in a state where the resin sheet material 1 is moved. The intensity of the transmitted light, transmitted through the resin sheet material 1 of the infrared rays L, or the intensity of the reflected light from the resin sheet material 1, is detected. The curing degree of the resin of the resin sheet material 1 is led out, on the basis of the intensity of the infrared rays L in the respective detected absorption wavelength. The irradiation position of the infrared rays L is moved, accompanying the movement of the resin sheet material 1, so that an identical region 9 on the resin sheet material 1 is irradiated with the infrared rays L. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
