| 摘要 |
<p>PURPOSE:To make it possible to simultaneously measure the moisture and temp. of a measuring object in a non-contact state by using the same optical system, by condensing the light from the measuring object by the projection of light to separate the same into lights respectively measuring the property and temp. of the measuring object. CONSTITUTION:Measuring light and reference light from a light source 1 through the filters 31, 32 with transmission wavelengths lambda1, lambda2 of a rotary sector are projected to a measuring object 5 through a mirror 41. The light from this object 5 is condensed by a concave mirror 42 and a convex mirror 43 and subsequently divided into two lights by a separation means 6 and one of them is received by a detector 7 while the other is received by a light receiver 71 through a low wavelength filter 9. The moisture content M of the object 5 by the division of the light receiving outputs of components with wavelengths lambda1, lambda2 from a light receiver 72 and the temp. T of the object 5 by the base light with a low wavelength from the light receiver 71 are calculated by an operation means 8. By this method, the simultaneous and non-contact measurement of the moisture and temp. of the object can be performed by the same optical system.</p> |
