METHOD OF ALIGNING A WATER LEVEL INDICATOR HAVING A REMOTE AND A LOCAL READOUT DISPLAY

摘要

- 10 - Case 4395 A METHOD OF ALIGNING A WATER LEVEL INDICATOR HAVING A REMOTE AND A LOCAL READOUT W UT DISPLAY A water level indicating apparatus (10) has an optical system (22) for establishing an optical signal indicative of water level which signal is split by a beam splitter (18) to transmit transmit the majority of the optical signal to a fiber optic cable (16) and to reflect a part of the signal to a proximately located (13) glass diffuser (14). The end 24 of the cable (16) is reflected in the beam splitter (18) to form a : reflection (24') which varies in intensity as the end (24) of the cable (16) is moved with the brightest reflection (24') appearing when the lamp (26) of the optical system 22 is in line with end (24) of the cable (16).