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A multi-parameter lc sensor for condition monitoring of rotating structures

A technology of rotating structure and sensor, which is applied in the direction of using electric/magnetic devices to transmit sensing components, etc., and can solve the problem that the sensor is not suitable for using active circuits and batteries

Active Publication Date: 2020-12-01
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this harsh environment, active circuits and batteries are not suitable for use in sensors

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  • A multi-parameter lc sensor for condition monitoring of rotating structures
  • A multi-parameter lc sensor for condition monitoring of rotating structures

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this article generally indicates that the contextual objects are an "or" relationship.

[0023] Such as figure 1 As shown, the embodi...

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Abstract

A multi-parameter LC sensor for monitoring the state of a rotating structure (4), comprising a plurality of capacitive sensors (2) and an inductive unit (1) which are provided on the rotating structure (4), the inductive unit (1) comprises a plurality of single-turn coils (11, 12, 13) connected in sequence, two ends of each single-turn coil (11, 12, 13) are respectively connected to a capacitive sensor (2), an output coil (3) is provided on the outer periphery of the inductive unit (1), the output coil (3) is used for passively and wirelessly outputting a plurality of resonant frequencies generated by the plurality of capacitive sensors (2), and each resonance frequency corresponds to a different state parameter of the rotating structure (4). Said sensor implements real-time monitoring of a plurality of state parameters of the rotating structure (4), can be used for a long period of time without maintenance, and is suitable for use in harsh environments such as a high-temperature environment and an oil polluted environment.

Description

technical field [0001] The invention relates to the field of pressure sensors, in particular to a multi-parameter LC sensor for state monitoring of rotating structures. Background technique [0002] A large number of rotating structures, such as bearing structures and gear structures, are used in various industrial production equipment and transportation equipment. These rotating structures work under harsh conditions such as high load and high speed for a long time, and are one of the most prone to failure parts in mechanical equipment. Therefore, it is very necessary to monitor the working condition of the rotating structure. [0003] Since the rotating structure is in a rotating state during operation, traditional wired sensors are not suitable for real-time monitoring of the state of the rotating structure. At present, wireless active sensor systems are mainly used for condition monitoring of key parts of rotating structures. Wireless active sensors generally use radi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/12
CPCG01D5/12
Inventor 王立峰董蕾黄庆安
Owner SOUTHEAST UNIV