故障率測試 的英文怎麼說
中文拼音 [gùzhànglǜcèshì]
故障率測試
英文
frt failure rate test- 故 : Ⅰ名詞1 (事故) event; incident; happening; accident 2 (原因) cause; reason 3 (朋友; 友情) fr...
- 障 : Ⅰ動詞(阻隔; 遮擋) block; hinder; obstruct Ⅱ名詞(遮擋物) barrier; block; obstacle
- 率 : 率名詞(比值) rate; ratio; proportion
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 試 : 名詞(古代占卜用的器具) astrolabe
- 故障率 : fault rate; failure rate故障率曲線 bathtub curve; 故障率數據 failure-rate data; 故障率水平 failure-rate level
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
- 測試 : test; testing; checkout; measurement
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Optical power meter real - time monitor optical power of each optical cable, and control computer gather the value of optical power attenuation circularly, if some values excess the limit, the computer control optical switch to connect another spare optical fiber with otdr card, control the otdr card to test the optical fiber, and then find the malfunction point accurately. the system require software system to run with hardware devices tother. this paper analyze requirement and technical feasibility in software system, ooa and uml are used to analyze software and abstract the class diagram
通過光功率計對每條光纜中的備用光纖進行實時的監控,測試光功率的衰減值,主控計算機不斷循環的對每個光功率模塊進行數據採集,並記錄每路光信號的光功率衰減值,然後進行分析處理,如發現達到設定的光功率衰減門限值就報警,並控制光開關的切換,將故障光纜中的另一備用光纖與otdr卡連接,通過otdr卡對該光纖進行測試,從而確定故障點。In this paper we investigate and carry out boundary scan ^ internal scan and built - in self - test three dft technologies in the embedded microprocessor estarl and get satisfying result, the fault coverage is more than 96 %
本文針對嵌入式微處理器estar1的結構特點,研究並實現了邊界掃描、內部全掃描和內建自測試三種可測性設計技術,取得了良好的效果,故障覆蓋率達到96以上。With the development of the network and the multi - processor system, the research, simulation and the impemeni of the system - level fault diagnosis which is the very important means to increase the reliability of the system, are becoming more and more important. on the system - leve1 fault diagnosis, based on the group theory of system - level fault diagnosis that has been put forward by pro f zhang, the paper constructs newly the theory bases, improves on the matrix method, reinforces and consummates group arithmetic of all kinds of test mode, for the first time, analyses and discusses the equation solution of all kinds of models, so al1 the consistent fault patterns ( cfp ) could be found, straightly and high efficiently, even if the sufficient and necessary condition of t - diagnosable is dissatisfied and the complexity of system - level fault diagnosis is greatly decreased, especialy in strong t - diagnosabl6 system. last the simulation system ' s function has been extended and the application hotspot and the development trend have been disscussed
本人在張大方教授等人提出的基於集團的系統級故障診斷的理論基礎上,重新構建了系統級故障診斷的理論基礎,定義了系統級故障診斷測試模型的三值表示;改進了系統級故障診斷的矩陣方法,重新定義了測試矩陣、鄰接矩陣、結點對、結點對的相連運算、極大準集團和斜加矩陣,由此能直觀、簡便地生成集團和極大獨立點集;補充和完善了各類測試模型的系統級故障診斷的集團演算法,通過定義集團測試邊和絕對故障集,簡化了集團診斷圖,由此能較易地找到所有的相容故障模式,即使不滿足t -可診斷性,大大減少了系統級故障診斷的復雜度,尤其是對強t -可診斷系統;首次分析探討了各類測試模型的方程解決,由此從另一角度能系統地、高效率地求出所有的相容故障模式( cfp ) :擴充了系統級故障診斷模擬系統的功能,快速、直觀和隨機地模擬實驗運行環境,進行清晰和正確的診斷,同時提供大量的實驗數據用於理論研究,優化演算法和設計。Among the many testing methods of analog and mixed signal circuits booming up in recent years, the pseudorandom testing technique is easier to generate testing stimuli and the current - based testing method could magnify the response differences between fault - free circuits and faulty circuits
近年來提出的很多種模擬及混合信號電路測試方法中,偽隨機測試法易於產生測試激勵,基於電流的測試法能使正常電路和故障電路的頻率響應的差別增大。And, when coupled with functional testing, the fault coverage for the entire process is as good as or better than in - circuit testing alone
加上功能測試,這個過程中檢測到的故障率要比單獨進行在線測試故障發現率大。These new methods adopt the circuit information contained in the power supply line current to realize the fault diagnosis. it can increase the fault coverage, reduce testing cost and improve the quality and reliability of ics
它通過從電源電流信號中提取有效的信息來進行故障診斷,能夠提高故障覆蓋率,降低測試成本並提高集成電路產品的質量與可靠性。Abstract : in the validation testing of software, the analysis of failure data can help to understand the failure distribution in the software. based on the analysis result, the corrective actions and proper approcahes can be taken to improve the detected efect rate of software tesing
摘要:在軟體的確認測試中,如果能夠對故障數據進行相關的分析,就可以實時地了解被測軟體的故障分佈情況,並採取相應的措施和方法,從而提高軟體測試的缺陷發現率。To solve these problems, this paper gives the gap sensor ’ s fault model, finds out the weaknesses, and designs a bit fault detecting system which is tested by experiment, improving the maintenance efficiency
本文對間隙傳感器進行故障建模,找到間隙傳感器中的薄弱環節,針對這些薄弱環節設計了間隙傳感器的bit故障檢測系統,最後通過實驗對系統進行了測試,提高了維護的效率。Quantitative analysis of this test is done, we calculate performance parameter of the test, that is fault - examined rate and fault - insulated rate and then evaluate them. at last some suggest would be given for methods to improvement test performance and maintainability
對模塊和整機的測試進行了定量分析,計算了測試的性能參數即故障檢測率和故障隔離率,並對測試的結果進行評價,在此基礎上,提出了改善測試性能,提高可維護性的辦法和建議。Assisted with the sensitivity of the linear analog circuits, the feasibility of parametric faults detection was analyzed through the maximum fault errors acquired at the sensitive frequencies, a stimulation matrix and its stimulation expression were put forward on the test points information
摘要從線性模擬電路靈敏度的概念入手,分析了通過獲取敏感頻點激勵下的最大故障誤差來檢測電路參數故障的可能性,提出了一種針對測試頻率和測點信息的激勵矩陣。Using “ logical effort ” method to analyze the circuit ’ s critical path, and choose the optimized size of transistors in theory by this method. then, using sta technique simulates and analyzes the circuit to optimize transistors size further, and the circuit optimization arithmetic based on sta is gained. results proved that the optimization strategy of combining theory and practice have better effect
結果證明,這種理論與實際結合的優化策略具有較好的效果;三、典型條件下,所實現版圖關鍵路徑延時1 . 38ns ,平均功耗45 . 3mw ,版圖面積0 . 05112mm2 ,達到了較小的延時、功耗和面積;四、針對所設計的算術邏輯部件,研究了一種獨特的內建自測試方法,只需較少的測試向量就可實現該部件100 %的故障覆蓋率,具有很高的效率和較低的代價。The 6psd30 - 1 fuel injection pump test stand is the 1970 ' s product and leave unused. its electrical control part is made up of large discrete components with low - test sensitivity, inconvenient setting and adjustment, high trouble rate. moreover, its circuit components are aging and spoiled
6psd30 - 1型電子控制噴油泵試驗臺是七十年代的產品,其電氣控制部分電路採用大量分立元件構成,測試靈敏度低,設定調整不方便,故障率高,而且電路元件大多老化、損壞,現處于閑置狀態。1 murray b t, hayes j p. testing ics : getting to the core of the problem. ieee computer, nov. 1996, 29 : 32 - 39
在絕大多數情況下,這就意味著如果我們運行偽隨機測試足夠長的時間,那麼我們就可以獲得100的故障覆蓋率。3 zorian y. a distributed bist control scheme for complex vlsi devices. in proc. ieee vlsi test symposium vts 93, atlantic city, nj, 1993, pp. 4 - 9
在混合bist方案中,我們會在偽隨機測試過程中終止偽隨機測試,因為剩下的偽隨機測試會降低偽隨機測試的故障覆蓋率。This paper presents a method of test, estimation and predication of some state parameters of the power unit in power and electric equipment, these parameters can be temperature, voltage, current and so on ; when attaining the values of these parameters at the next state, whether the power unit will go into the malfunction or not can be knew, according to the result, some measures can be made ; by controlling the values of correlative parameters, the unit could be maintained in its optimal running status ; so the damage to the power unit can be prevented, the running quality of the driving system can be guarantied, and the optimized control level of the system can be improved
本論文提出了一種利用預測估計的方法,對電力電子設備中的功率器件的某些主要狀態參量(如:溫度、電壓和電流)進行測試、估計並預測,從而得出未來的運行狀態;然後據此判斷該功率器件是否已進入故障范圍,以便提前採取措施,通過對相關參數的調整來保證功率器件始終工作在最佳狀態;這樣,既避免了功率器件損壞的發生,又避免了驅動系統故障狀態的出現,明顯地提高了系統優化控制的水平。In this paper we use the bist in the testing of the ssrams in estarl according to the characteristics of the structure and get almost 100 % fault coverage
本文針對estar1內部ssram的結構特點,實現了存儲器自測試,得到了將近100的故障覆蓋率。In this way, the wattless power of the test signal at the head spot of the fault is only needed to sample when the system fault occurs, which simplifies the measurement
這樣,當系統發生故障時,只需採集故障首端測試信號的無功功率,大大地簡化了測量的方法。The results through evaluating the scheme show that under the condition of ensuring high fault coverage, the scheme not only decreases the number of the test vectors by applying an universal test set, but substantially thrifts the extra hardware overhead
經過方案評估得出此方案在不降低故障檢測覆蓋率的情況下,既使用通用測試集,又減少測試矢量數,還大大節約了附加硬體開銷。Unfortunately, adding two relays per port will increase cost, area and failure rate ; whether these penalties are acceptable to operators in return for highly accurate selt measurements on long loops is not yet clear
不幸的是,增加兩個繼電器會增加成本,面積和故障率;目前還不清楚運營商為了獲得高精確的長距離環路selt測試而付出這些代價是不是可以接受的。According to the sample theory, applied the time terminated test plan, the reliability compliance test plan was brought forward. the reliability compliance test plan was divided into two parts, residual current protection test and operation reliability test. in this paper, the preparation of sample, the test plan, the failure criterion and the program of reliability test were introduced
本文由抽樣理論,採用定時截尾試驗方案確定了剩餘電流動作保護器的可靠性驗證試驗方案,剩餘電流動作保護器的可靠性驗證試驗由成功率驗證試驗和故障率驗證試驗組成;本文還給出了剩餘電流動作保護器可靠性驗證試驗的試品準備和試驗條件、試驗檢測方法、失效判據,以及可靠性驗證程序。分享友人