Low-complexity optical force sensor for a medical device

摘要

An apparatus for detecting deformation of an elongate body may comprise a light source configured to sequentially provide light of multiple frequencies, an optical receiver configured to receive light from the light source, and a filter disposed between the light source and the optical detector. The filter may comprise multiple segments, each of the segments configured to filter light at one of the frequencies so as to alter the amount of light incident on said optical receiver. A total amount of light detected by the optical receiver may change during the sequence so as to be indicative of deformation of the elongate body.

主权项

1. An apparatus for detecting deformation of an elongate body, the apparatus comprising:
a light source configured to provide light of multiple frequencies; an optical receiver configured to receive light from said light source; and a filter disposed between said light source and said optical detector, said filter comprising multiple segments, each of said segments configured to filter light at one of said frequencies so as to alter the amount of light incident on said optical receiver, wherein at least two of said segments filter light at the same frequency, wherein said optical receiver is configured to receive light from all of the multiple segments of the filter; wherein a total amount of light received by said optical receiver is indicative of deformation of the elongate body.