| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid volume measuring device capable of measuring fluid volume transparency of which varies from transparent to turbid condition shutting out light. SOLUTION: A translucency sensor 14 and a light-shading sensor 16 are arranged so as to nip a transparent circular tube 10 through which fluid falls down. Of the translucency sensor 14 a first light source and a first receptor are arranged to nip the transparent circular tube 10 and a blackout member is prepared inhibiting incident light from the first light source to the first receptor linearly to irradiate the both parts so as to enter the light to the first receptor by refraction with transparent fluid existing in the transparent circular tube 10. Of the light-shading sensor 16 a second light source and a second receptor are arranged to nip the transparent circular tube 10 to enter light from the second light source to the second receptor linearly so as to inhibit light incident to the second receptor by shadow of opacity fluid existing in the transparent circular tube 10. Incident time of light to the first receptor or non-incident time of light to the second receptor is measured and then fluid volume can be computed from the those time and the crosssection inside of the transparent circular tube 10. COPYRIGHT: (C)2009,JPO&INPIT
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