200 sensors find missing ply in battery film.A maker of laser and capacitive thickness gauges for film has developed an unusual system for high speed detection of a missing layer in 1-meter-wide, three-layer polyolefin film for lithium batteries Lithium batteries are primary batteries that have lithium metal or lithium compounds as an anode. Depending on the design and chemical compounds used lithium cells can produce voltages from 1.5V to about 3V, twice the voltage of an ordinary zinc-carbon battery or alkaline cell. . The Missing Ply Detector detector: see particle detector. ensures the presence of a critical middle layer of PE only 6 microns thick. Oryx oryx (ôr`ĭks), name for several small, horselike antelopes, genus Oryx, found in deserts and arid scrublands of Africa and Arabia. They feed on grasses and scrub and can go without water for long periods. systems Inc. in Charlotte, N.C., measures transmission of light from 200 LEDs through the film to 200 very sensitive photo-detectors spaced 5 mm apart on the opposite side. Spectral analysis Spectral analysis may refer to:
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