測輻射熱計 的英文怎麼說
中文拼音 [cèfúshèrèjì]
測輻射熱計
英文
bolometer-
Pyrometers, radiometers, bolometers are used for determining heat radiation and have applications for measuring the surface temperature of hot lavas.
高溫計、輻射計、輻射熱測量儀用來測定熱輻射和熱巖熔的表面溫度。Conduction cooling bolometer
導熱冷卻測輻射熱計Conduction loss bolometer
導熱損耗測輻射熱計Bolometers and pyroelectric detectors are the most common thermal detectores in uncooled ir sensors technolgy
非製冷熱成像探測器目前以微測輻射熱計和熱釋電探測器為主流。Abstract : this paper describes the classical mathematic model of bolometer, the effect of thermal isolation and noise on detector performance are also discussed
文摘:總結了非製冷測輻射熱計的經典數學模型,並分析了探測器熱絕緣結構和噪聲對性能的影響,指出了性能改進和優化的基本途徑。In this method of measuring temperature, when the measuring results of time - resolved spectrum have been completed, computing the fit spectrum of corresponding planck bold - radiation with least duple multiply theory, the temperature is measured
溫度擬合方法的主要思想:獲得光譜的時間分辨測量結果后,用最小二乘法原理計算熱輻射譜(主要在可見光區)擬合得到相應普朗克黑體輻射加線,並解析其溫度。Noise, nedt, nep, and detectivity of microbolometer arrays are also considered. the work will provide the insight necessary to understand the optimum design and practical operating requirements of microblolmeter arrays. this paper provides a low cost and more practical software tool for predicting and evaluating parameters of the detector
對微測輻射熱計性能進行了計算模擬,為非致冷微測輻射熱計紅外探測器性能預測和評估提供一種準確、快速、低成本的方法,並且開發了一整套對測輻射熱計探測器進行計算機優化設計的模擬軟體。As the microbolometer which is voltage biased express some characters different from other infrared detectors under the effect of electric heat and infrared radiation together, the computing method of parameters, such as responsivity, noise, noise equivalent temperature different ( netd ), noise equivalent power ( nep ), optical gain, detectivity and so on is given in this paper. some of these parameters are particular compared with other detectors, and some have difference between microbolometer and other detectors
由於微測輻射熱計在施加偏置電壓的情況下,電熱效應與紅外輻射的共同作用使它表現出與其他紅外探測器完全不同的一些特徵,文中給出了響應率、噪聲、噪聲等效功率、噪聲等效溫差、光學增益、探測率等參數的計算方法,這些參數中的部分是微測輻射熱計獨有的,或者與其他的紅外探測器的同一參數有所區別。After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %
摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定,確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒,增設煙氣含氧量分析,可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下,極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果,從而降低排煙溫度45 ,減少加熱爐排煙損失,節約了煤氣量6 %以上。This project is focused on microbolometer fpa. this program includes the development design and simulation tools, material research, fabrication process development, and detector and readout circuitry design, fabrication and characterization. the work done in this paper is described as follows : the theory of microbolometer fpa is expounded
課題的重點放在非致冷微測輻射熱計焦平面陣列,這種非致冷紅外產品的設計研製工作包括:設計和模擬工具的研究、材料選擇和器件製作工藝的研究、探測器和讀出電路的設計研究、真空封裝和性能表徵的研究等。The uncooled microbolometer infrared focal plane arrays ( irfpa ) is the leading edge of research on infrared technology in information science today
非致冷微測輻射熱計紅外焦平面陣列( umbirfpa )是當代信息科學技術中紅外技術學科的具有帶動性的學科研究前沿之一。It is very difficult to analyze flame radiation in the cylinder of a diesel engine by theoretical method since flame radiation is a function of many parameters, such as the combustion process, the geometrical description of the chamber, the soot formation and oxidation processes, the soot radiant temperature and soot absorption coefficient. the radiant property of the flame in a cylinder is dependent on the combustion process. but the thermodynamic state of real engine cycles can be analyzed from the pressure - volume diagrams in the cylinder. thus a new thermodynamic computational model is set up for the flame radiation in the cylinder of a diesel engine based on the indirect relationship between the flame radiation and the pressure - volume diagram of the combustion process in this paper. the flame radiant heat flux in the cylinder of a di diesel engine is calculated with the variation of crank angle by this model. compared with measured values, the result of the computational values shows the model is available to represent the effects of flame radiation
柴油機缸內的火焰輻射受諸多因素的影響,用理論分析法來確定它是相當困難的,由於柴油機缸內火焰輻射特性依賴于缸內的燃燒過程,而燃燒過程中的實際熱力狀態又可用示功圖來分析,因此藉助於火焰輻射與缸內熱力參數之間的這種間接關系,建立了一種計算柴油機缸內火焰輻射傳熱的新模型,利用該模型對一臺直噴柴油機缸內火焰輻射熱流量隨曲軸轉角的變化情況進行了計算,將計算結果與實測結果進行了比較,表明該模型能較好預測缸內火焰輻射傳熱量。Based on setting up the fire safety goals, performance criterion, fire scenario and uncertainty factor, this article simulated the occupants ’ evacuation time, smoke spread, radiation flow etc and determined fire detector and automatic extinguishing device by using the developed engineering method. and so these buildings ’ fire safety goals, which have the equivalent safety level with the existing national standard, can be achieved and those problems, which caused by some incompliment requirements or the existing codes not adapting to the practical need, can be solved
針對這類建築存在的典型問題,通過設定消防安全目標、確定性能判據、建立火災場景,考慮不確定因素,運用已開發的工程學方法對人員安全疏散時間、煙氣蔓延、輻射熱通量等進行模擬計算,對火災探測和自動滅火設施進行分析選擇,認為大型書城建築採用至少與現行國家標準的規定等效的方法來實現建築物的消防安全目標,能夠解決現行標準與實際需要不相適應或某些不完善的規定所帶來的問題。In the course of designing a microbolometer, it is the most difficult to design microbridge structure
摘要微測輻射熱計的設計難點是起支撐作用的微橋結構的設計。Microbolometer, which is the key part of umbirfpa, is the unit absorbing the infrared radiation and changing it into heat quantity and electrical quantity
微測輻射熱計是umbirfpa的核心部分,它是把紅外輻射轉換為溫度變化再轉換為電學量變化的象元單位。As umbirfpa is a new type of infrared detecting device, its work principle is complex and its performance is affected by many factors. in the initial stage of developing, the design experiment and theoretical understanding are little interiorly. furthermore, the problems such as sensitivity reduced, dynamic range shortened, nonuniformity increased come forth if umbirfpa is not designed properly
Umbirfpa是一種新型的紅外探測器件,微測輻射熱計的工作原理復雜,其性能受到很多因素的影響,目前國內尚處于發展初期,缺少實際的設計經驗和理論認識,同時umbirfpa又是在集成電路工藝線上生產的,投資大、周期長,如果設計不當,不僅可能導致靈敏< wp = 13 >度降低、動態范圍縮小、噪聲增大、非均勻性增大等問題,更可能的是根本就不能用於成像,從而造成很大損失。Using simple model of a microbolometer biased by pulse, useful practical equations and numerical estimates for the responsivity are derived
本文為開發一整套微測輻射熱計探測器計算機優化設計和模擬軟體打下了堅實的基礎。The main work is focused on the establishment of mathematic model for a microbolometer detector, in order to simulate the structure characteristic and the optical and electrical characteristics
對微測輻射熱計陣列的探測器像元建立了數學模型,對其結構特性和光電特性進行計算機模擬模擬和優化設計。The last effort in this paper is concentrated on the readout circuitry of microbolometer arrays, which is connected to the detector array on chip to form a monolithic chip, and the non - uniformity correction
這一模擬軟體對微測輻射熱計的設計研製具有指導意義。研究了微測輻射熱計陣列讀出電路並進行了非均勻性校正。Besides introducing some different ways of readouting the signal of detector pixel, the principle circuitry of the whole array is also put forward. and a kind of temperature compensated load circuit is put forward to improve the offset correction and the gain correction for non - uniformity
本文對整個焦平面陣列的讀出電路做了原理性地分析,著重提出了對讀出電路校正的方法,並對傳統的校正方法做出了修正,使非致冷微測輻射熱計焦平面陣列具有更可靠的工作性能。分享友人