Urine specific gravity measuring device

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 光電的に測定可能で、よりコンパクトに構成 できる尿比重測定装置を提供する。 【構成】 採尿容器に、基面４５ｃ及び先端面４５ｄが 互に平行なプリズム４５を収納し、先端面４５ｄの両側 には傾斜面４５ａ、４５ｂを形成すると共に、これらの 傾斜面に鏡面を形成する。基面４５ｃにおける一方の傾 斜面４５ａに対面した位置には、所定の発射角で光を発 射する発光部４６を配置し、他方の傾斜面４５ｂに対面 した位置には、受光部４７を配置する。一方の傾斜面４ ５ａの角度θは、所定の発射角の光を境面で反射して先 端面へ入射させる入射角範囲を、先端面４５ｄに尿が接 触した状態で、測定すべき尿比重の変化範囲で尿比重が 大きくなるのに伴って徐々に先端面４５ｄでの全反射状 態から透光状態に変化させ得るように設定されている。 他方の傾斜面４５ｂの角度は、入射角範囲の先端面４５ ｄでの反射光を受光部４７に向けて反射させるように設 定されている。 (57) [Abstract] [Purpose] To provide a urine specific gravity measuring device that can be measured photoelectrically and can be configured more compactly. [Structure] A prism 45 having a base surface 45c and a tip surface 45d parallel to each other is housed in a urine collection container, inclined surfaces 45a and 45b are formed on both sides of the tip surface 45d, and mirror surfaces are formed on these inclined surfaces. To do. A light emitting portion 46 that emits light at a predetermined emission angle is arranged at a position facing the one inclined surface 45a on the base surface 45c, and a light receiving portion 47 is arranged at a position facing the other inclined surface 45b. . One slope 4 The angle θ of 5a is a range of incident angles in which light having a predetermined emission angle is reflected at the boundary surface and is incident on the tip surface in the range of change in urine specific gravity to be measured in the state where urine is in contact with the tip surface 45d. It is set so that the total reflection state at the front end surface 45d can be gradually changed to the translucent state as the specific gravity increases. The angle of the other inclined surface 45b is the same as that of the tip surface 45 in the incident angle range. It is set to reflect the reflected light at d toward the light receiving section 47.

Inventors

• 👤 Noboru Hasebe
• 👤 騰 長谷部

Bibliographic Details