Optics: measuring and testing – Refraction testing – Refractive rod engages specimen
Patent
1987-05-26
1989-04-25
Rosenberger, Richard A.
Optics: measuring and testing
Refraction testing
Refractive rod engages specimen
F02D 100, F02B 300, G01N 2141
Patent
active
048242446
ABSTRACT:
A sensor for mixing ratio of liquid fuel comprising: a cylindrical enclosure having both inlet and outlet opening to act as a passage through which a mixing liquid fuel flows; a transparent column concentrically disposed into the enclosure to make outer surface contact with the liquid fuel; light emitting diode and photo diode each provided so as to sandwich the column in the lengthwise direction, so that the light emitted from the former enters the column through its one end and reflects at the boundary of the column and the liquid fuel, and go out of the other end thereof to fall on the latter; a temperature compensation photo diode disposed in the enclosure with the light of the light emitting diode partly as a light source to rectify the characteristics influenced under the ambient temperature variation; a voltage control circuit provided to control the voltage across the light emitting diode so as to maintain uniform output from the temperature compensation photo diode.
REFERENCES:
patent: 4257689 (1981-03-01), Yancey
patent: 4438749 (1984-03-01), Schwippert
patent: 4639594 (1987-01-01), Schoch et al.
Matsubara Yoshihiro
Miyata Shigeru
NGK Spark Plug Co. Ltd.
Rosenberger Richard A.
LandOfFree
Sensor for mixing ratio of gasoline and alcohol or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sensor for mixing ratio of gasoline and alcohol or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor for mixing ratio of gasoline and alcohol or the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1191661