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公开(公告)号：US11413978B2
公开(公告)日：2022-08-16
申请号：US16969470
申请日：2019-02-13
发明人： Will Johnson
摘要： A charging system incorporates at least one motor; conductive charging arms rotatably coupled to the motor; a controller coupled to the motor and configured to rotate the conductive charging arms; and a sensor configured to sense the presence of a powered device and provide a signal to notify the controller of the presence of the powered device. In response to receiving the signal, the controller controls the motor to rotate the conductive arms to positions of electrical charging contact with the powered device. The powered device can be a drone powered by a rechargeable battery. The positions of electrical charging contact include electrical connections to terminals of the rechargeable battery. The charging system may also incorporate the feature of the motor having a stepper motor coupled to each of the conductive arms.
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公开(公告)号：US11976971B2
公开(公告)日：2024-05-07
申请号：US17272667
申请日：2019-09-04
发明人： Will Johnson
CPC分类号： G01J3/0221 , G01J3/18 , G01J3/2803 , G01S17/95 , G02B6/0008 , G01J2003/2813
摘要： Spectrographic measurements are often limited by the amount of light that is available. Photons that are not collected or measured reduce the signal to noise and therefore reduce measurement precision. This invention collects the zero order light and sends it through the spectrometer again. In an atmospheric LIDAR, the zero order recycling is estimated to increase the rotational Raman signal by an additional 20%. A grating based spectrometer where the zero order light is collected by a lens or mirror and focused into a fiber optic that sends the light to the input slit where it is directed into the spectrometer again. There can be a plurality of recycle fibers. The detector can be either a single linear array or a two dimensional array such as a CCD or CMOS camera.
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