波美標度的 的英文怎麼說
中文拼音 [bōměibiāodùde]
波美標度的
英文
baume- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 美 : Ⅰ形容詞1 (美麗; 好看) beautiful; pretty 2 (令人滿意; 好) satisfactory; satisfying ; good; ple...
- 標 : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 的 : 4次方是 The fourth power of 2 is direction
- 美標 : api
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This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制理論的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的穩定性,同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的正確性,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。A large number of density / concentration conversion tables are stored in the instrument as standard, e. g. brix, baume, % alcohol, % sulphuric acid, api gravity, etc
儀器儲存了大量的密度/濃度轉換標準表,如白利糖度、波美比度、酒精濃度、硫酸濃度、 api比重等。X - band ground based radar ( gbr ) plays an important role in national missile defense ( nmd ) system, it has many important functions such as middle stage surveillance and interception, trajectory prediction, target identifying and classifying. it has important significance to analyze and study gbr system, not only for ballistic missile ’ attack and defense research, but also for our national space surveillance and ballistic missile defense system development
X波段地基雷達( gbr )是美國國家導彈防禦系統中段防禦和攔截系統中最主要和最有效的目標精確跟蹤和識別傳感器之一,它負責中段監視和截獲、預測彈道和實測彈道的精度、識別和目標分類等重要功能,對gbr的系統分析和模擬研究,探究其工作機理和識別手段,不但對于研究彈道導彈的有效突防措施和攻防對抗有著重要意義,對于發展我國自己的空間監測和彈道導彈防禦系統也有著重要的參考價值。Melp which can work at the rate of 2. 4kb / s has been chosen as u. s. federal standard, melp algorithm is on the basis of line prediction ( lp ). five auxiliary characters has been introduced into melp algorithm, they are mixed excitation, aperiodic pulse, fourier magnitudes pulse dispersion and adaptive spectral filtering
作為一種重要的低速率語音編碼演算法,美國聯邦標準melp演算法對lpc - 10編碼方案做了大量改進,引入了混合激勵,非周期脈沖,殘差付氏幅度譜,脈沖散布和自適應譜濾波五個附加特徵,在2 . 4kbit / s的速率下取得了比較自然的語音質量。分享友人