熱噪聲發生器 的英文怎麼說
中文拼音 [rèzàoshēngfāshēngqì]
熱噪聲發生器
英文
thermal noise generator-
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。In the present work, the causing of high noise of multi - effect falling film evaporator was introduced in detail. based on the result of modern test technology, the relationship of noise and work presser was received. ground on the method of superposition, the noise of raw material pump was separated from the mixed noise and gets the true noise of steam - jet - ejector
本文對三效降膜蒸發器設備工作時，噪聲產生的機理進行了理論分析與研究，利用現代聲學測試技術手段進行測試與分析，得出三效降膜蒸發器設備的整體噪聲隨熱壓泵工作壓力增大而增大的關系，利用噪聲疊加原理，將三效降膜蒸發器設備的物料泵噪聲作為背景噪聲，計算得出三效降膜蒸發器設備的熱壓泵真實噪聲，因而得出熱壓泵噪聲亦隨其工作壓力增大而增大的關系。Used the theory of air - dynamic and the jet - ejector principle the characteristic of jet - steam, proving the noise signal have the character of chaos by using the fractal theory. noise sound pressure on the normal condition was checked by theory formula and contrasted with the experimental data. the difference was analyzed in detail
結合空氣動力學噴射氣流噪聲理論公式，驗算了三效降膜蒸發器正常生產時熱壓泵中拉伐爾管噴口處的噪聲聲壓級，與實測值進行對比，並詳細分析了兩者產生較大差異的原因。
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