APPARATUS FOR GENERATING SIGNAL INDICATING CONSUMPTION AMOUNT BY OPTICAL SENSING

摘要

PURPOSE: An apparatus for generating a signal indicating a consumption amount by optical sensing is provided to generate the signal indicating a consumption amount by counting a number that a lower number plate below an inspection unit is positioned in a gauge without substituting previously mounted gauge. CONSTITUTION: An apparatus for generating a signal indicating a consumption amount by optical sensing includes a light beam shutting off part(10) for shutting off light beams introduced from outside to a lower number plate than an inspection unit, a reflection surface(11) mounted on a number plate of a predetermined number in the lower number plate, an optical diode(13) separated by a partition(12) above a lowest number plate mounted with the light beam shutting off part, an optical transistor(14) for generating electrical signals by sensing light beams of the optical diode reflected by the optical transistor, and a counter for counting a number of electrical signals generated by the optical transistor.