Method for testing environmental adaptability of optical fiber sensing system

Abstract

The invention relates to a method for testing the environmental adaptability of an optical fiber sensing system. The method comprises three parts namely a hardware connection phase, a test preparation phase and a test phase, wherein the hardware connection phase comprises the step of preparing a temperature and humidity environmental test chamber, a prototype to be tested, an industrial control computer, a double-layer shielded network cable, a power line and an optical fiber disc; the test preparation phase comprises the following steps: starting the prototype to be tested and the industrial control computer, starting system control software in the industrial control computer after network communication between the prototype to be tested and the industrial control computer is normal and starting to monitor the running state of the prototype to be tested; the test phase comprises the following steps: setting a variety of temperatures and operations and monitoring test results to obtain monitoring conclusions. According to the method provided by the invention, the nominally harshest operating temperature and humidity environment of a product is selected, so that the product runs under the extreme environment, therefore, assistance is offered to device selection and design improvement; the product online runs in the test process and is monitored in real time; conditions under high-temperature test, low-temperature test and damp heat test before testing and data are contrasted.

Description

technical field [0001] The invention relates to product reliability engineering technology, which is based on international and domestic industry standards, and is used for a reliability detection scheme for product development and design conforming to technical specifications. Background technique [0002] Reliability engineering started in the early 1950s from the research on the reliability of electronic equipment in the United States. In 1957, the U.S. Department of Defense established the Ad Hoc Committee on Missile Reliability, and the Institute of Electrical and Electronics Engineers (I.E.E.E.) regularly published Reliability Transactions. It was not until the 1960s that the reliability technology of electronic equipment was gradually extended to various industries such as machinery and construction. In 1965, the International Electronic Technology Committee (IEC) established the Reliability Technical Committee to coordinate reliability terms and definitions, reliabi...

AI Technical Summary

Problems solved by technology

In the current general method, either different samples are used to carry out environmental tests under different conditions, or the environmental tests under different conditions are incoherently carried out with the same sample, which is a non-combined test, which reduces the severity of the test and makes it difficult to find component failures. and design defects; or set environmental test conditions according to the requirements of specific standards or technical specifications, instead of simulating the extreme conditions during the use of the product, it is difficult to understand and grasp the use conditions and problems within the entire range of environmental conditions of the product's nominal ; or the product is not powered on or monitored online, and the status and problems of the product during the entire environmental test process cannot be monitored throughout the process, and the limit value of the product under these conditions cannot be understood, and the problems that may be found cannot be predicted. Or mastered enough to not be able to find the source of the problem

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