2results about How to "Achieve high performance" patented technology

This invention relates to the field of motion detection technology, and discloses a primary motion detector based on a PN junction channel, its fabrication method, and a sensor. The primary motion detector includes a first phototransistor and a second phototransistor. The first phototransistor is configured to operate under a source-drain forward bias, and its photocurrent decay process during turn-off has a first fast decay time constant and a first slow decay time constant. The second phototransistor is configured to operate under a source-drain reverse bias, and its photocurrent during turn-off has a second fast decay time constant and a second slow decay time constant, wherein the first fast decay time constant is greater than the second fast decay time constant. When a light pulse moves along the direction from the first phototransistor to the second phototransistor, a directional current pulse can be detected at the output of the primary motion detector. This invention achieves high-efficiency and low-power discrimination of the direction of light signals.

The invention relates to the technical field of high polymer material recycling, in particular to a composite non-woven material and a preparation method and application thereof. According to the preparation method, full recycled materials are taken as raw materials, plasma treatment is utilized to provide an activated interface for chemical reaction, rPVB particles are prepared into rPVB fibers through regulation and control of a plasticizer, stability of the processing performance of PVB is guaranteed, and the rPVB particles are chemically bonded with an epoxy functionalized compatilizer in a specific ratio, and the three components are indispensable and cannot act together. Through triple synergistic effects of plasma activation, compatilizer chemical bonding and plasticizer regulation and control, a synergistic effect of '1 + 1 + 1gt, 3' is generated, the core problems of poor interface compatibility of rPET and rPVB and unstable performance of the recycled material are solved, and high-performance and high-value utilization of the total recycled material is realized. The composite non-woven material disclosed by the invention has excellent mechanical properties and dimensional stability, and the properties such as longitudinal tensile strength, interlayer peel strength and elongation at break of the composite non-woven material are balanced.