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公开(公告)号：US10337918B1
公开(公告)日：2019-07-02
申请号：US15899445
申请日：2018-02-20
发明人： Thomas Kruspe , Sebastian Jung
摘要： An optical spectrometer with a tilted or brazed optical grating is useful to identify material composition, estimate physical characteristics, and measure physical conditions. Light from a sample or a space reflects to the grating; and stray light from the grating directed on an optical sensor (which can be a single sensor) and converted into an electrical signal, to obtain information about the sample or space. Examples of scanning include altering an angle the light strays from the optical grating by applying a strain to the optical grating, moving the optical sensor, and installing a mirror in the path of the stray light that reciprocatingly pivots over an angular range. In an example, the optical grating is formed on a light transmission medium that mounts to a piezoelectric element, that expands when energized to apply strain to the grating. In an example, the diffraction grating is a Fiber Bragg Grating.
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公开(公告)号：US11306578B2
公开(公告)日：2022-04-19
申请号：US15954224
申请日：2018-04-16
IPC分类号： E21B47/01 , E21B47/017 , F28F7/02 , E21B36/00
摘要： Apparatus and methods directed to an assembly associated with a downhole tool, and including: a thermal housing; at least one internal component inside the thermal housing, wherein the at least one internal component comprises at least one thermally sensitive component; and a thermal isolation support connecting the at least one internal component to the tool. The thermal isolation support may comprise an additive manufacturing structural framework connected to the tool. The structural framework may include a plurality of structural members, with a majority of the plurality of structural members substantially non-parallel with a longitudinal axis of the downhole tool.
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