photoemissive tube photometer
McGraw-Hill Science & Technology Dictionary:
Top
photoemissive tube photometer
(¦fōd·ō·i′mis·iv ¦tüb fə′täm·əd·ər)
(engineering) A photometer which uses a tube made of a photoemissive material; it is highly accurate, but requires electronic amplification, and is used mainly in laboratories.
Post a question - any question - to the WikiAnswers community:
Copyrights:
McGraw-Hill Science & Technology Dictionary
McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
Read more