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Cable combustion test electric signal monitoring method and system

A combustion test and electrical signal technology, which is applied in the direction of measuring current/voltage, using combustion for chemical analysis, measuring electricity, etc., can solve the problems of high noise in monitoring data, single scope of application of monitoring methods, low monitoring efficiency, etc., and achieve monitoring process Simple, effective monitoring results, and precise control effects

Pending Publication Date: 2022-01-07
THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention intends to provide a cable combustion test electrical signal monitoring method and system, which are used to solve the monitoring data noise in the existing monitoring method, the monitoring efficiency is low, the scope of application of the monitoring method is single, and the obtained monitoring data lacks authenticity. technical issues

Method used

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  • Cable combustion test electric signal monitoring method and system

Examples

Experimental program
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Embodiment 1

[0037] as attached figure 1 , figure 2 As shown, the present embodiment provides a cable combustion test electrical signal monitoring method and system, which provides a cable combustion test electrical signal monitoring method, including the following steps:

[0038] Step 1: Connect the monitoring end to the fixed cable to be tested; specifically, the cable to be tested is fixed horizontally and horizontally in this embodiment.

[0039] Step 2: Power on the cable to be tested. After the cable to be tested enters the working state, monitor the change of the electrical signal of the cable to be tested through the monitoring terminal. Specifically, the change of the electrical signal is the change of the leakage current value; when the monitoring terminal detects that the current value of the power supply current of the cable to be tested reaches the power supply standard range, it confirms that the cable to be tested has entered the working state, and the monitoring terminal st...

Embodiment 2

[0048] This embodiment provides a cable combustion test electrical signal monitoring method and system, and provides a cable combustion test electrical signal monitoring method. On the basis of the method provided in Embodiment 1, before step 2: connect the vibrator and the cable to be tested , and start the vibrator, so that the cable to be tested is in a vibrating state; the vibration parameters of the vibrator are controlled by the monitoring terminal, and the vibration parameters include vibration frequency and vibration acceleration.

[0049] Specifically, the vibration frequency is controlled within the range of 20-80Hz, the vibration acceleration is controlled within the range of 3g-6g, where g represents the acceleration of gravity. This setting covers most standard vibration ranges. By adjusting the vibration parameters, different test standards can be met, and the overall test method is universal. Moreover, setting the vibration state can make the overall test enviro...

Embodiment 3

[0053] This embodiment provides a cable combustion test electrical signal monitoring method and system, and provides a cable combustion test electrical signal monitoring method. On the basis of the method provided in Embodiment 1, step 3 is changed: start the burner, make The flame sprayed by the burner can be sprayed laterally to the cable to be tested; the electrical signal changes of the cable to be tested are monitored and recorded in real time through the monitoring terminal. Specifically, in this embodiment, the current value of the leakage current monitored by the monitoring terminal does not exceed 12.5 milliseconds. An, if the leakage current value exceeds 12.5 mA, an alarm for abnormal current value is issued, and the test is judged to be unqualified.

[0054] This embodiment also provides a cable combustion test electrical signal monitoring system. On the basis of the system provided in Embodiment 1, an alarm module is added. The alarm module is set in the central pr...

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Abstract

The invention relates to the field of combustion tests, and discloses a cable combustion test electric signal monitoring method and system. The method comprises the following steps of 1, connecting a monitoring end with a fixed to-be-tested cable, 2, electrifying the to-be-tested cable, and after the to-be-tested cable enters a working state, monitoring the electric signal change condition of the to-be-tested cable through a monitoring end, 3, starting a combustor, and enabling flame jetted by the combustor to be transversely jetted to the to-be-tested cable, and monitoring and recording the electric signal change condition of the to-be-tested cable in real time through the monitoring end, and 4, after the flame applying time reaches the first preset time, turning off the combustor, and after a second preset time after the flame is extinguished, turning off the monitoring end. The effects of high monitoring efficiency and accurate monitoring can be achieved, the whole test environment is closer to a real application scene, and the application range is wide.

Description

technical field [0001] The invention relates to the field of combustion tests, in particular to a method and system for monitoring electrical signals of a cable combustion test. Background technique [0002] Fire resistance and fire resistance are one of the most important performance indicators of aircraft components and their accessories. Fire resistance and flammability tests are necessary tests for aircraft onboard equipment to ensure that the performance of various equipment can meet the requirements of the actual flight environment. According to the types of aircraft on-board equipment and the different materials used, different aircraft on-board equipment can be subjected to fire test, fire resistance test and flammability test respectively. These tests can be collectively referred to as combustion tests. [0003] For this reason, there are corresponding test equipment and test methods to complete the test of the device under test. The cable is a connecting device th...

Claims

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Application Information

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IPC IPC(8): G01R31/52G01R31/58G01R19/00G01N31/12
CPCG01R31/52G01R31/58G01R19/0092G01N31/12
Inventor 王玉琢吴海涛于新华陈龙包雯婷马震曾泰
Owner THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA