Acceleration sensor

A technology of acceleration sensor and housing, which is applied in the direction of measuring acceleration, speed/acceleration/shock measurement, instruments, etc., and can solve the problems of insufficient precision and insufficient sensitivity of low-frequency testing

Pending Publication Date: 2022-04-29
DUT ARTIFICIAL INTELLIGENCE INST DALIAN +1
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AI Technical Summary

Problems solved by technology

The very key part of the vibration frequency method is the sensor, and the existing acceleration sensor has insufficient low-frequency test accuracy and sensitivity

Method used

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  • Acceleration sensor
  • Acceleration sensor
  • Acceleration sensor

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Embodiment Construction

[0037] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.

[0038] Some words are used to refer to specific components or components in the specification and subsequent claims, and those skilled in the art should understand that technical users or manufacturers may refer to the same component or component with different terms or terms. . This description and the following claims do not use the difference in name as a way to distinguish components or parts, but use the difference in function of components or parts as a criterion for distinguishing. "Includes" and "comprises" mentioned in the entire specification and subsequent claims are open-ended terms, so they should be interpreted as "includ...

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Abstract

The invention discloses an acceleration sensor. The acceleration sensor comprises a shell; the vibration unit is rigidly connected with the shell, the vibration unit comprises an elastic cantilever beam which is rigidly connected with the shell, and a mass block which is welded with the elastic cantilever beam into a whole and is forced to vibrate along with the shell; the reference plate is in rigid connection with the shell, the surface of the reference plate and the surface of the mass block are located on the same plane, and a gap is formed between the reference plate and the mass block; the marking unit comprises at least two markers, and the mass block and the reference plate are respectively provided with at least one marker; and the visual monitoring unit is arranged on the shell, is aligned with the marking unit and is used for monitoring relative displacement information of the mass block and a marker arranged on the reference plate. The sensor can monitor the low-frequency acceleration of large bridges, building structures and the like, and meets the engineering measurement requirements of the low-frequency acceleration.

Description

technical field [0001] The invention belongs to the field of structural health monitoring and intelligent sensors, and relates to an acceleration sensor based on MISS microscopic vision technology. Background technique [0002] Bridge cable force test is an important part of bridge structural health diagnosis; cable force test plays an important role in both the construction process of cable-stayed bridges and its daily maintenance and inspection. Whether the cable force is within a reasonable range will directly affect the overall stress state of the structure and the smoothness of the line shape. Therefore, the timing test of the cable force of the cable is the best method for bridges with cables such as cable-stayed bridges, under-supported arch bridges and suspension bridges. Important content for daily maintenance. The vibration frequency measurement method is an important method for cable force testing; under the action of various environmental factors, the cable usua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/097G01B11/04
CPCG01P15/097G01B11/04
Inventor 赵雪峰赵晨浩
Owner DUT ARTIFICIAL INTELLIGENCE INST DALIAN
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