31results about How to "Strong portability" patented technology

The invention relates to the field of chiral detection, and provides a tapered fiber-based chiral molecule detection device, the device comprises an optical fiber, a reflecting layer, a fiber circulator, a light source and a light detector, one section of the optical fiber is a tapered area, the reflecting layer is of a chiral structure and is fixedly arranged on the end face of one end of the optical fiber, the other end of the optical fiber is a reserved end, and the optical fiber circulator is arranged on the reserved end. The reserved end is connected with one port of the optical fiber circulator, the other two ports of the optical fiber circulator are connected with the light source and the optical detector respectively, and the connection mode of the optical fiber circulator meets the requirement that laser emitted by the light source enters the reserved end through the optical fiber circulator, and laser emitted from the reserved end enters the optical detector through the optical fiber circulator. The chirality of the chiral molecules has great influence on the light intensity of the reflected laser, that is, the difference of reflection coefficients of the reflected laser obtained by the two chiral molecules with small chirality characteristic difference is great, so that the device provided by the invention has high chirality detection accuracy and sensitivity.

The invention relates to a hardware circuit of achieving the slid process in the image processing field of the fingerprint identification system. The slid processing part of the background technique as the software form has the disadvantages that: the speed of the software processing is slow in the same clock frequency. The invention completes the image slid processing with the hardware circuit, which comprise the following steps: acquiring the collected fingerprint image data from the collecting part of the fingerprint image; dealing with the fingerprint image data according to I(I, j)=1/4( sigma I( i + k, j) + sigma I( i, j + h)) I (wherein k=-1,1, h=-1,1); getting the new data; saving the new data in the reservoir for the Gabor filtration parts. The invention provides the rapid processing speed and the strong transplantation.