| 摘要 |
<p>PURPOSE:To put a light source and a light receiving sensor equivalently close to a body to be measured and to effectively project an infrared ray and to received the light by constituting a double pipe consisting of an internal and an external pipe which provide internal surface reflection as the optical system of the reflection meter. CONSTITUTION:An infrared-ray light emission source 4 is provided nearby the external pipe 2 and the infrared ray emitted by the infrared-ray emission source 4 is propagated in the external pipe 2 to illuminate the body 5 to be measured. The other end of the external pipe 2 is close to the body 5 to be measured as well. The infrared ray reflected by the body 5 to be measured is propagated in the internal pipe 1 and received by the light receiving sensor 3. An electric signal obtained by the light receiving sensor 3 is amplified by an amplifying circuit 6, processed by a signal processing circuit 7, and displayed on a display device 8.</p> |
