US PATENT SUBCLASS 250 / 227.16
.~.~.~.~ With detection of fiber microbend caused by parameter affecting fiber

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

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
216  DF  .~ Optical or pre-photocell system {11}
227.11  DF  .~.~ Light conductor {14}
227.14  DF  .~.~.~ Condition responsive light guide (e.g., light guide is physically affected by parameter sensed which results in light conveyed to the photocell) {5}
227.16.~.~.~.~ With detection of fiber microbend caused by parameter affecting fiber

DEFINITION

Classification: 250/227.16

With detection of fiber microbend caused by parameter affecting fiber:

(under subclass 227.14) Subject matter in which a photodetector sense a small scale, i.e., micro, bend in an optical fiber caused by a parameter such as pressure, temperature, stress or strain, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

231.10+, for photocell control of light valve pre-photocell systems which are activated by external physical quantities.

SEE OR SEARCH CLASS

73, Measuring and Testing,

705, photoelectric fluid pressure gauges; and subclass 800 for optical testing of specimen stress or strain.

356, Optics: Measuring and Testing, 32+, for optical measurement and testing of material strain.