FIELD: physics, optics.
SUBSTANCE: invention discloses measurement methods and an apparatus for reading a shape using multiple-strand fibre. Change in optical length is detected in some of the strands of the multiple-strand fibre to a certain point on the multiple-strand fibre. The position and/or direction of guidance are determined at a point on the multiple-strand fibre based on the detected changes in optical length. The accuracy of the determined position is better than 0.5% of the optical length of the multiple-strand fibre to a point on the multiple-strand fibre.
EFFECT: determining the shape of a portion of a multiple-strand fibre based on changes in optical length.
41 cl, 40 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETECTING TWIST IN CABLE, POWER SUPPLY CABLE WITH TWISTING SENSOR AND METHODS OF MAKING SUCH CABLE | 2012 |
|
RU2616766C2 |
| OPTICAL SENSOR WITH DOUBLE-SURFACE MEASURING SPUN-FIBER | 2015 |
|
RU2677990C2 |
| OPTICAL SOUNDING SUPPORTED INTERVENTIONAL INSTRUMENTS FOR FAST DISTRIBUTED MEASUREMENTS OF BIOPHYSICAL PARAMETERS | 2010 |
|
RU2577509C2 |
| SYSTEM OF GAUGES OF LATERAL STRAIN BASED ON FIBER-OPTICAL GRATING | 1997 |
|
RU2213328C2 |
| ELECTRIC CABLE WITH STRAIN-GAGE AND CONTROL SYSTEM AND METHOD FOR STRAIN DETECTION IN AT LEAST ONE ELECTRIC CABLE | 2009 |
|
RU2510904C2 |
| FIBRE-OPTIC SENSOR OF TURNING ANGLE | 2018 |
|
RU2695955C1 |
| METHOD FOR MEASUREMENT OF ALTERNATING CURRENT AND DEVICE FOR ITS REALIZATION | 2004 |
|
RU2281516C2 |
| FIBER OPTICAL SENSOR OF ANGLE OF TURN | 2018 |
|
RU2688596C1 |
| METHOD OF JOINING OF INTEGRAL-OPTICAL CIRCUIT FOR FIBER-OPTIC GYROSCOPE WITH SINGLE-MODE LIGHTGUIDES (VERSIONS) | 2004 |
|
RU2280882C2 |
| FIBRE OPTIC SENSING ELEMENT OF ELECTRIC CURRENT AND MAGNETIC FIELD SENSOR | 2022 |
|
RU2792207C1 |
