(under subclass 31) Total radiant energy or power measurement: Subject matter for determining the total energy or power produced by a source of radiation.
(1) Note. Microwave, other radio wave, X-ray and gamma ray radiation are excluded from this subclass.
SEE OR SEARCH CLASS
136, Batteries: Thermoelectric and Photoelectric,
213+, for a radiant energy sensing thermocouple.
250, Radiant Energy, appropriate subclasses for measurement of intensity or amplitude of an incident beam of radiant energy.
