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Method for monitoring package fastening state of microwave communication filter

A technology of microwave communication and filter, which is used to measure torque/torsion force, instrument, measurement force and other directions during tightening, and can solve problems such as unqualified indicators

Inactive Publication Date: 2017-08-04
WUHAN FINGU ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, some products passed the internal aging review and passed the inspection, but the indicators failed after they were sent to customers.

Method used

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  • Method for monitoring package fastening state of microwave communication filter
  • Method for monitoring package fastening state of microwave communication filter
  • Method for monitoring package fastening state of microwave communication filter

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0022] The invention provides a method for monitoring the fastening state of a microwave communication filter package, which includes the following steps:

[0023] S1. Collect the resistance value of the strain sensor in real time through the strain sensor arranged between the cover plate and the box body of the microwave communication filter; the strain sensor includes several strain gauges, and the number of the strain gauges is the same as that used for fastening the cover The number of screws on the board and the box is the same, and the strain gauges correspond to the screws one by one, and the resistance value of each strain gauge is collected separately;

[0024] S2, performing signal amplification and filtering processing on the collected resistance value;

[0025] S3. According to the relationship between the resistance value of each strain ...

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Abstract

The invention provides a method for monitoring the package fastening state of a microwave communication filter, which is characterized by comprising the steps of acquiring a resistance value of a strain sensor in real time through the strain sensor arranged between a cover plate and a box body of the microwave communication filter, wherein the strain sensor comprises a plurality of strain gauges, the number of the strain gauges is the same as the number of screws used for fastening the cover plate and the box body, the strain gauges correspond to the screws in a one-to-one correspondence manner, and the resistance value of each strain gauge is acquired respectively; performing signal amplification and filtering processing on the acquired resistance values; performing data conversion according to a relation between the amplified resistance value of each strain gauge and a corresponding pressing force, and acquiring the pressing force at each of the screws between the cover plate and the box body; and building a relation between the pressing force and the time, and storing the built relation. According to the method, the fastening state of a microwave communication filter product can be detected in real time, and data support is provided for solving a loosening problem in a later period.

Description

technical field [0001] The invention belongs to the field of microwave communication filter products, and in particular relates to a method for monitoring the package fastening state of a microwave communication filter. Background technique [0002] The assembly parts of microwave communication filter products are metal parts, all of which are installed and fastened with screws. Metals have a common feature, that is, they will loosen when encountering factors such as temperature, vibration, thermal expansion and contraction, and external environmental interference, which will lead to installation and debugging. For some qualified products, the indicators have changed during the review process after aging. In addition, some products passed the internal aging review and passed the inspection, but after they were sent to customers, the indicators failed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22G01L5/24
CPCG01L1/22G01L5/24
Inventor 严博
Owner WUHAN FINGU ELECTRONICS TECH
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