Sensor branch structure based on Steward platform
A branch structure and sensor technology, applied in the field of sensors, can solve problems such as low anti-interference and complicated strain output, and achieve the effects of improving measurement accuracy, ensuring structure, and ensuring simplification
Active Publication Date: 2017-07-25
BEIJING FORESTRY UNIVERSITY
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[0011] The invention provides a sensor branch structure based on the Steward platform, which is used to solve the problems of large-scale and complex branch structures of existing sensors, low strain output and poor anti-interference, etc., and can improve the sensitivity and measurement accuracy of the sensor
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[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only ...
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The invention relates to the technical field of sensors, and especially to a sensor branch structure based on a Steward platform. The structure comprises a spherical hinge and an elastic unit, the spherical hinge comprises spherical heads, a spherical rod and hinge seats, the two ends of the spherical rod are connected to the spherical heads respectively, and each hinge seat is provided with a spherical head hole cooperated with the corresponding spherical head, and comprises a first casing and a second casing connected with the first casing via a clamping structure; and the spherical rod is provided with the elastic unit, the elastic unit comprises a semispherical casing arranged on the spherical rod, the bottom of the semispherical casing is provided with a cross-shaped beam elastic component formed by splicing four elastic beams, and the four elastic beams are respectively provided with strain chips which are distributed in a cross symmetrical way. According to the invention, the problems that a present sensor branch structure is large, complex and low in strain output are solved, and the flexibility and measuring precision of a sensor are improved.
Description
technical field [0001] The invention relates to the technical field of sensors, in particular to a sensor branch structure based on a Steward platform. Background technique [0002] The six-dimensional acceleration sensor has a good application prospect in the wrist joints of humanoid robots, attitude sensing of smart phones, and anti-shake of digital cameras. [0003] In the research of the six-dimensional acceleration sensor, the series-parallel mechanism is widely used, and compared with the series structure, the parallel structure has higher stiffness, higher load capacity, and higher accuracy. Due to its unique structure and simple inverse solution, it has successfully solved the basic theory and key technical problems in the field of large-range or large-range sensors. Therefore, it is widely used in the research of six-dimensional acceleration sensor. [0004] However, the parallel structure has its own inherent defects, such as the relatively complex kinematics pos...
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IPC IPC(8): G01P15/18
CPCG01P15/18
Inventor 于春战杨梦颖唐嘉国黄骁勇
Owner BEIJING FORESTRY UNIVERSITY