US PATENT SUBCLASS 250 / 559.1
.~.~ With calibration


Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
559.01  DF  .~ With circuit for evaluating a web, strand, strip, or sheet {13}
559.1.~.~ With calibration


DEFINITION

Classification: 250/559.1

With calibration:

(under subclass 559.01) Subject matter wherein the process of quantifying a property or attribute of the material includes establishing a reference level or scale.

(1) Note. References are established by normalizing the measurement of interest with a reference measurement (e.g., from a reference wavelength) or by measuring the response of the system under known conditions (e.g. first measuring fixed samples).

SEE OR SEARCH THIS CLASS, SUBCLASS:

252.1, for calibration or standardization in general.