Optical fiber curvature sensor for measuring body motion and its adhesive method
First Claim
Patent Images
1. An adhesive method for an optical fiber curvature sensor that includes:
- a light source (20) for emitting a light;
an optical fiber (10) having first and second ends, comprising an inside core (12) and an outside clad (14) of which some portion is eliminated by heat-treatment and in which a cutout-groove (16) is formed, said optical fiber being connected to said light source (20) at the first end; and
a light receiving element (40) for measuring the intensity of light transmitting through said optical fiber (10) and connected to said optical fiber (10) at the second end, said method comprising the steps of;
adhering said optical fiber (10) to a subject (50) bendable body part when said subject body part is in a curved state; and
measuring a degree of curvature of said body part and simultaneously determining a direction of said curvature based on said intensity of light measured by the light receiving element.
1 Assignment
0 Petitions
Accused Products
Abstract
An adhesive method for an optical fiber curvature sensor results in a sensor having improved sensitivity for measuring body motions such as motions of fingers, arms, or legs, and in particular that is capable of measuring both a curving direction and degree of curvature of a subject simultaneously, even for variable surface areas such as those of the waist or shoulders. The method is carried out by adhering an optical fiber to a subject in a curved state.
-
Citations
1 Claim
-
1. An adhesive method for an optical fiber curvature sensor that includes:
-
a light source (20) for emitting a light;
an optical fiber (10) having first and second ends, comprising an inside core (12) and an outside clad (14) of which some portion is eliminated by heat-treatment and in which a cutout-groove (16) is formed, said optical fiber being connected to said light source (20) at the first end; and
a light receiving element (40) for measuring the intensity of light transmitting through said optical fiber (10) and connected to said optical fiber (10) at the second end, said method comprising the steps of;
adhering said optical fiber (10) to a subject (50) bendable body part when said subject body part is in a curved state; and
measuring a degree of curvature of said body part and simultaneously determining a direction of said curvature based on said intensity of light measured by the light receiving element.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeKorea Advanced Institute of Science and Technology
-
Original AssigneeKorea Advanced Institute of Science and Technology
-
InventorsKwon, Dong Soo, Lee, Kyu Bin
-
Primary Examiner(s)Nguyen, Tu T.
-
Application NumberUS09/912,357Publication NumberTime in Patent Office1,503 DaysField of Search356/73.1, 356/512, 356/342, 356/121, 356/244, 356/247, 356/601, 356/521, 25022714-22728, 250/250, 250/577, 25023114-23119, 250/201.2, 250/341.1, 25055921-55927, 250/214.VT, 250/903, 25033906-33905, 600/595, 600/473, 600/476, 600/344, 600436-439, 600/407, 600/310, 600/427, 600/534, 600/575US Class Current250/227.14CPC Class CodesA61B 5/1121 Determining geometric value...A61B 5/1126 using a particular sensing ...G01B 11/24 for measuring contours or c...
