CN104656718A - Method for testing environmental adaptability of optical fiber sensing system - Google Patents
Method for testing environmental adaptability of optical fiber sensing system Download PDFInfo
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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
The present invention relates to product reliability engineering, based on international and domestic industry standard, for whether meeting the reliability detection scheme of technical manual to the R & D design of product.
Background technology
Reliability engineering be early 1950s from the U.S. to reliability of electronic equipment research.Nineteen fifty-seven, U.S. Department of Defense set up guided missile reliability ad hoc committee, and U.S. electric and Electronic Engineering Association (I.E.E.E) regularly publish and distribute reliability transactions.Just the industry-by-industry such as machinery, building is generalized to by the reliability engineering of electronic equipment successively to the sixties.Nineteen sixty-five International Electrotechnical Commission (IEC) (IEC) set up the reliability engineering council, coordinates reliability term between various countries and definition, reliability management, the collection of data and Writing method etc.Afterwards, physics of failure, fail-test, reliability management Xue Deng branch were in succession developed again, reliability engineering is had fairly perfect theoretical foundation.
Optical fiber sensing system project carries out development, needs inspection Product environment adaptability performance whether to meet demand of technical standard; Study temperature humidity stress to the impact of the device of product, the especially impact of optical device.In existing general method, or the environmental test of different condition is carried out respectively with different sample, or the environmental test of different condition is carried out with same sample in fits and starts, non-combined is tested, reduce test severity, not easily find components and parts fault and design defect; Or according to the requirement set environment test condition of specific criteria or technical manual, but not the maximum conditions in analog equipment use procedure, not easily understand and the behaviour in service rested in the whole range of environmental conditions of product nominal and problem; Or product do not powered on or the test of not on-line monitoring, can not the situation of monitored over time product in whole environmental test process and problem, product ultimate value under these conditions cannot be understood, for can the also unpredictable or abundant grasp to such an extent as to question classification cannot be found of detectable problem.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of knockdown environmental suitability testing program is provided.Test method of the present invention simulates the humiture environment that product during normal use may occur, checks its ruuning situation in such a case; By the system controlling software in external industrial computer and optical fiber, Real-Time Monitoring product is functional stabilization and performance change under simulated environment; And with the exposure of accelerated deterioration mode expedite product components and parts fault and design defect.
In order to reach foregoing invention object, the technical scheme that the test method of the optical fiber sensing system environmental suitability of patent of the present invention provides is as follows:
A test method for optical fiber sensing system environmental suitability, the method includes signal wiring stage, test preparatory stage and experimental stage three part:
This test method includes signal wiring stage, test preparatory stage and experimental stage three part:
The described signal wiring stage comprises: prepare humiture environmental test chamber, model machine to be measured, industrial computer, double layer screen netting twine, power lead and fiber reel, described humiture environmental test chamber is provided with a cable hole power supply source line, double layer screen netting twine and optical fiber pass, described model machine to be measured is optical fiber sensing system, described model machine to be measured is placed in humiture environmental test chamber, industrial computer is positioned on the experimental desk outside case, industrial computer is connected on model machine to be measured by double layer screen netting twine through cable hole, power lead is connected on model machine to be measured through cable hole, fiber reel is connected on model machine to be measured through cable hole,
The described test preparatory stage comprises: power and start this two equipment first to model machine to be measured and industrial computer, the IP address and the model machine to be measured that arrange industrial computer match, the network communication status of industrial computer and model machine to be measured is checked with PING order, the system controlling software in industrial computer is opened after both network services are normal, this system controlling software carries out the data analysis of fiber-optic probe signal, process and access, and display alarm data and figure, carry out parameter configuration and algorithm interface is provided, starting to monitor model machine running status to be measured;
Described experimental stage comprises:
(1) first shake fiber reel to provide disturbing signal, the speed of per second ten times, monitor and record operation conditions and the data of model machine to be measured, operation conditions comprises: whether have false alarm and leak alarm condition appearance; Whether normally communicate between system controlling software with model machine to be measured; Whether carry out fault alarm and anatomical connectivity situation; The data of required record comprise: the frequency of the original signal of collecting fiber, amplitude and scope, the position of the disturbing signal number of times that the shake fiber reel that system controlling software is quoted produces and response time and signal, response time refers to from shake fiber reel institute and produces the time that disturbing signal quotes to system controlling software, repeats this and operates 5 times;
(2) start humiture environmental test chamber, arranging its temperature is 45 DEG C, not controlled humidity, heating rate is 1 DEG C per minute, temperature is kept 16 hours, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1) after reaching 45 DEG C; After having tested, humiture environmental test chamber temperature is down to 25 DEG C and keeps 2 hours, not controlled humidity, rate of temperature fall is 1 DEG C per minute, makes the testing sample in humiture environmental test chamber return to 25 DEG C;
(3) arranging humiture environmental test chamber temperature is 0 DEG C, not controlled humidity, rate of temperature fall is 1 DEG C per minute, keeps temperature 16 hours after reaching 0 DEG C, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1); After having tested, humiture environmental test chamber temperature is risen to 25 DEG C and keeps 2 hours, not controlled humidity, heating rate is 1 DEG C per minute, makes the testing sample in humiture environmental test chamber return to 25 DEG C;
(4) arranging humiture environmental test chamber temperature is 40 DEG C, humidity is 93%RH, and retention time length is 48 hours, and heating rate is 1 DEG C per minute, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1); After having tested, humiture environmental test chamber temperature is down to 25 DEG C and keeps 2 hours, not controlled humidity, rate of temperature fall is 1 DEG C per minute, uses the testing sample in humiture environmental test chamber to return to 25 DEG C;
(5) comparison and the functional performance on-line monitoring result analyzed in each step and state and data record result, check in whole test process communicate whether normal, when disturbing signal is not provided errorless quote existing; The frequency of the original signal of collecting fiber, amplitude and scope are unchanged; Providing, disturbing signal alarm is normal, without failing to report, disturbing signal number of times, the position of response time and signal meets the requirement of product specification book, and combination product description carries out test findings judgement and provides conclusion (of pressure testing).
In the test method of optical fiber sensing system environmental suitability of the present invention, in described humiture environmental test chamber, volume is greater than 0.4 square, and temperature deviation is less than ± and 2 DEG C, humidity deviation is between+2 ~-3 DEG C of RH.
In the test method of optical fiber sensing system environmental suitability of the present invention, as the existing equipment of environmental suitability to be tested, above-mentioned optical fiber sensing system transmitter module, receiver module, detecting module, analysis and treament module and control module, this control module is primarily of industrial computer and system controlling software group; Detecting module is primarily of detecting optical cable and assembly composition; Transmitter module, receiver module and analysis and treament module then form detection main control computer.
Based on technique scheme, the optical fiber sensing system consistency detecting method of patent of the present invention compared with prior art has following technological merit:
1. select the harshest work of product nominal to run humiture environment, allow product run under its extreme environment, be easy to appearing suddenly of product problem on the one hand; If non-fault occurs on the other hand, guarantee that product can normally work in other circumstances, avoid revision test, shorten test period.
2. the test free of discontinuities such as damp and hot for high temperature low temperature combination is carried out, accelerate product and device aging, be easy to allow the fault of device and the appearance of design defect, thus offer help for parts selection and design improvement.
3. in process of the test, allow On-line Product run, and monitor in real time, by the situation before Comparability test, under hot test, under low-temperature test and under damp heat test and data, namely communication normal condition, fault alarm and constructional aspect is checked, observe the frequency of the original signal of collecting fiber, amplitude and scope, inspection has false alarm and fails to report alert disturbing signal number of times, the position of response time and signal, find the function of product in its process and the slight change of performance, judge whether the function of product in its process and performance fail; On-line real time monitoring, system controlling software has the function such as state and data access, and when any exception occurs, system controlling software by recording exceptional content and time, thus can have a clear understanding of the timing node of inefficacy, record product operational limit in such circumstances.
Accompanying drawing explanation
Fig. 1 is the test stand composition of a kind of optical fiber sensing system environmental suitability of the present invention test method.
Fig. 2 is the data flowchart of a kind of optical fiber sensing system environmental suitability of the present invention test method.
Embodiment
Our Method And Principle of testing optical fiber sensing system environmental suitability of the present invention with specific embodiment by reference to the accompanying drawings and operating process are described in further detail below; in the hope of more in depth understanding its implementation process and job step, but can not limit the scope of the invention with this.
Object of the present invention provides a kind of knockdown environmental suitability testing program, simulates the humiture environment that product during normal use may occur, checks its ruuning situation in such a case; By the system controlling software in external industrial computer and optical fiber, Real-Time Monitoring product is functional stabilization and performance change under simulated environment; And with the exposure of accelerated deterioration mode expedite product components and parts fault and design defect.
According to GB 2423.1-2008, GB2423.2-2008, the standard pilot such as GB 2423.3-2006 test equipment requirement to humiture environmental test chamber calibration also rolling inspection, guarantee testing equipment Pass Test requirement, in humiture environmental test chamber, room volume is not less than 0.4 square, temperature deviation is less than ± and 2 DEG C, humidity deviation is between+2 ~-3%RH.As optical fiber sensing system to be tested, its structure composition and working method belong to prior art in the present invention.Specifically, as the optical fiber sensing system transmitter module of tested object, receiver module, detecting module, analysis and treament module and control module, this control module is primarily of industrial computer and system controlling software group; Detecting module is primarily of detecting optical cable and assembly composition; Transmitter module, receiver module and analysis and treament module then form detection main control computer.
Fig. 1 is the test stand composition of a kind of optical fiber sensing system environmental suitability of the present invention test method, as shown in Figure 1, model machine to be measured for optical fiber sensing system project (hereinafter referred to as model machine 4 to be measured) is put into humiture environmental test chamber 3, industrial computer 1 is positioned on the experimental desk outside case, and connects model machine to be measured by the cable hole that double layer screen netting twine 2 passes humiture environmental test chamber; By the cable hole that the standard configuration power lead 6 of model machine 4 to be measured passes humiture environmental test chamber, model machine to be measured is connected with AC 220V power supply 7,6km fiber reel 5 is positioned on the experimental desk outside case, and the cable hole of optical fiber one end being passed humiture environmental test chamber inserts the light signal output end mouth of model machine 4 to be measured.Power to model machine 4 to be measured and industrial computer 1 and start, the IP address and the model machine to be measured 4 that arrange industrial computer 1 match, industrial computer 1 and model machine 4 network communication status to be measured is checked with PING order, after both network services are normal, open the system controlling software in industrial computer, start to monitor model machine operation conditions to be measured.
As shown in Figure 2, testing equipment of the present invention carries out following steps after having connected:
(1) first shake fiber reel to provide disturbing signal, the speed of per second ten times, monitor and record operation conditions and the data of model machine to be measured, operation conditions comprises: whether have false alarm and leak alarm condition appearance; Whether normally communicate between system controlling software with model machine to be measured; Whether carry out fault alarm and anatomical connectivity situation; The data of required record comprise: the frequency of the original signal of collecting fiber, amplitude and scope, the position of the disturbing signal number of times that the shake fiber reel that system controlling software is quoted produces and response time and signal, response time refers to from shake fiber reel institute and produces the time that disturbing signal quotes to system controlling software, repeats this and operates 5 times;
(2) start humiture environmental test chamber, arranging its temperature is 45 DEG C, not controlled humidity, heating rate is 1 DEG C per minute, temperature is kept 16 hours, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1) after reaching 45 DEG C; After having tested, humiture environmental test chamber temperature is down to 25 DEG C and keeps 2 hours, not controlled humidity, rate of temperature fall is 1 DEG C per minute, makes the testing sample in humiture environmental test chamber return to 25 DEG C;
(3) arranging humiture environmental test chamber temperature is 0 DEG C, not controlled humidity, rate of temperature fall is 1 DEG C per minute, keeps temperature 16 hours after reaching 0 DEG C, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1); After having tested, humiture environmental test chamber temperature is risen to 25 DEG C and keeps 2 hours, not controlled humidity, heating rate is 1 DEG C per minute, makes the testing sample in humiture environmental test chamber return to 25 DEG C;
(4) arranging humiture environmental test chamber temperature is 40 DEG C, humidity is 93%RH, and retention time length is 48 hours, and heating rate is 1 DEG C per minute, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1); After having tested, humiture environmental test chamber temperature is down to 25 DEG C and keeps 2 hours, not controlled humidity, rate of temperature fall is 1 DEG C per minute, uses the testing sample in humiture environmental test chamber to return to 25 DEG C;
(5) comparison and the functional performance on-line monitoring result analyzed in each step above-mentioned and state and data record result, check in whole test process communicate whether normal, when disturbing signal is not provided errorless quote existing; The frequency of the original signal of collecting fiber, amplitude and scope are unchanged; Providing, disturbing signal alarm is normal, without failing to report, disturbing signal number of times, the position of response time and signal meets the requirement of product specification book, and combination product description carries out test findings judgement and provides conclusion (of pressure testing).
The present invention relates to production quality control administrative skill, MSN (Measurement System Analysis) measurement System Analysis technology, SPC(Statistical Process Control) statistical process control technology and product certification technology, based on the homogeneity of product requirement of the product certification both at home and abroad such as 3C, CE, for whether meeting the verification scheme of technical manual and product certification to product in the batch production process of product.
Claims (3)
1. a test method for optical fiber sensing system environmental suitability, is characterized in that, this test method includes signal wiring stage, test preparatory stage and experimental stage three part:
The described signal wiring stage comprises: prepare humiture environmental test chamber, model machine to be measured, industrial computer, double layer screen netting twine, power lead and fiber reel, described humiture environmental test chamber is provided with a cable hole power supply source line, double layer screen netting twine and optical fiber pass, described model machine to be measured is optical fiber sensing system, described model machine to be measured is placed in humiture environmental test chamber, industrial computer is positioned on the experimental desk outside case, industrial computer is connected on model machine to be measured by double layer screen netting twine through cable hole, power lead is connected on model machine to be measured through cable hole, fiber reel is connected on model machine to be measured through cable hole,
The described test preparatory stage comprises: power and start this two equipment first to model machine to be measured and industrial computer, the IP address and the model machine to be measured that arrange industrial computer match, the network communication status of industrial computer and model machine to be measured is checked with PING order, the system controlling software in industrial computer is opened after both network services are normal, this system controlling software carries out the data analysis of fiber-optic probe signal, process and access, and display alarm data and figure, carry out parameter configuration and algorithm interface is provided, starting to monitor model machine running status to be measured;
Described experimental stage comprises:
(1) first shake fiber reel to provide disturbing signal, the speed of per second ten times, monitor and record operation conditions and the data of model machine to be measured, operation conditions comprises: whether have false alarm and leak alarm condition appearance; Whether normally communicate between system controlling software with model machine to be measured; Whether carry out fault alarm and anatomical connectivity situation; The data of required record comprise: the frequency of the original signal of collecting fiber, amplitude and scope, the position of the disturbing signal number of times that the shake fiber reel that system controlling software is quoted produces and response time and signal, response time refers to from shake fiber reel institute and produces the time that disturbing signal quotes to system controlling software, repeats this and operates 5 times;
(2) start humiture environmental test chamber, arranging its temperature is 45 DEG C, not controlled humidity, heating rate is 1 DEG C per minute, temperature is kept 16 hours, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1) after reaching 45 DEG C; After having tested, humiture environmental test chamber temperature is down to 25 DEG C and keeps 2 hours, not controlled humidity, rate of temperature fall is 1 DEG C per minute, makes the testing sample in humiture environmental test chamber return to 25 DEG C;
(3) arranging humiture environmental test chamber temperature is 0 DEG C, not controlled humidity, rate of temperature fall is 1 DEG C per minute, keeps temperature 16 hours after reaching 0 DEG C, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1); After having tested, humiture environmental test chamber temperature is risen to 25 DEG C and keeps 2 hours, not controlled humidity, heating rate is 1 DEG C per minute, makes the testing sample in humiture environmental test chamber return to 25 DEG C;
(4) arranging humiture environmental test chamber temperature is 40 DEG C, humidity is 93%RH, and retention time length is 48 hours, and heating rate is 1 DEG C per minute, the operation conditions of Real-Time Monitoring model machine to be measured, the operation keeping last hour in temperature course to carry out step (1); After having tested, humiture environmental test chamber temperature is down to 25 DEG C and keeps 2 hours, not controlled humidity, rate of temperature fall is 1 DEG C per minute, uses the testing sample in humiture environmental test chamber to return to 25 DEG C;
(5) comparison and the functional performance on-line monitoring result analyzed in each step above-mentioned and state and data record result, check in whole test process communicate whether normal, when disturbing signal is not provided errorless quote existing; The frequency of the original signal of collecting fiber, amplitude and scope are unchanged; Providing, disturbing signal alarm is normal, without failing to report, disturbing signal number of times, the position of response time and signal meets the requirement of product specification book, and combination product description carries out test findings judgement and provides conclusion (of pressure testing).
2. the test method of a kind of optical fiber sensing system environmental suitability according to claim 1, is characterized in that, in described humiture environmental test chamber, volume is greater than 0.4 square, temperature deviation is less than ± and 2 DEG C, humidity deviation is between+2 ~-3 DEG C of RH.
3. the test method of a kind of optical fiber sensing system environmental suitability according to claim 1, it is characterized in that, described optical fiber sensing system transmitter module, receiver module, detecting module, analysis and treament module and control module, this control module is primarily of industrial computer and system controlling software group; Detecting module is primarily of detecting optical cable and assembly composition; Transmitter module, receiver module and analysis and treament module then form detection main control computer.
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| CN105403380A (en) * | 2015-11-19 | 2016-03-16 | 深圳大学 | Humidity test box for miniature optical fiber device |
| CN106646322A (en) * | 2016-11-28 | 2017-05-10 | 中国电力科学研究院 | Method and system for testing low-temperature accuracy of fiber optical current transformer |
| CN106680755A (en) * | 2015-11-10 | 2017-05-17 | 中国电力科学研究院 | Extra-high voltage all-fiber current transformer temperature cycling test device and method |
| CN108663301A (en) * | 2018-07-10 | 2018-10-16 | 中国信息通信研究院 | A kind of vapor permeability can test system and method |
| CN110907342A (en) * | 2018-09-17 | 2020-03-24 | 株洲中车时代电气股份有限公司 | Wireless transmission device diagnosis system and method based on environmental stress screening test |
| CN111024120A (en) * | 2019-11-25 | 2020-04-17 | 国网上海市电力公司 | Inspection method of intelligent electric well lid inclination angle monitoring device |
| CN113358948A (en) * | 2020-03-05 | 2021-09-07 | 新疆金风科技股份有限公司 | Environmental suitability test method and test equipment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106680755A (en) * | 2015-11-10 | 2017-05-17 | 中国电力科学研究院 | Extra-high voltage all-fiber current transformer temperature cycling test device and method |
| CN105403380A (en) * | 2015-11-19 | 2016-03-16 | 深圳大学 | Humidity test box for miniature optical fiber device |
| CN105403380B (en) * | 2015-11-19 | 2018-04-13 | 深圳大学 | A kind of miniature fiber device humidity measurement case |
| CN106646322A (en) * | 2016-11-28 | 2017-05-10 | 中国电力科学研究院 | Method and system for testing low-temperature accuracy of fiber optical current transformer |
| CN108663301A (en) * | 2018-07-10 | 2018-10-16 | 中国信息通信研究院 | A kind of vapor permeability can test system and method |
| CN110907342A (en) * | 2018-09-17 | 2020-03-24 | 株洲中车时代电气股份有限公司 | Wireless transmission device diagnosis system and method based on environmental stress screening test |
| CN111024120A (en) * | 2019-11-25 | 2020-04-17 | 国网上海市电力公司 | Inspection method of intelligent electric well lid inclination angle monitoring device |
| CN113358948A (en) * | 2020-03-05 | 2021-09-07 | 新疆金风科技股份有限公司 | Environmental suitability test method and test equipment |
| CN113358948B (en) * | 2020-03-05 | 2024-06-21 | 金风科技股份有限公司 | Environmental adaptability test method and test equipment |
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