pulse attenuation 中文意思是什麼

pulse attenuation 解釋
脈沖衰減
  • pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
  • attenuation : n. 1. 變薄，變細。2. 減少，減弱。3. 稀釋。4. 【物理學】衰減。
  1. Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials - pulse - tube method

    水聲材料縱波聲速和衰減的測量脈沖管法
  2. Method for measurement of ultrasonic attenuation coefficient of solid by pulse echo technique

    用脈沖回波技術測量固體超聲波衰減系數的檢測方法
  3. When the energy converters and the thickness of the steel plate are settled, the attenuation speed of the repetitious pulse reflected wave from the underside is only related to the reflectivity of the reinforced concrete interface

    在鋼板厚度和換能器確定的情況下，多次脈沖底面反射波的衰減速度只與鋼-混凝土界面的反射率有關。
  4. At the same time, the power capacity of the above mentioned antenna is preliminarily analyzed. the results show that in the pass band, their power capacities increase with the frequency on the whole, ranging from 10 ’ s kw to 100 ’ s kw. with the change of the pulse duration of microwaves, the measurement is carried out on the sensitivity of the detectors of the types wb - cd01 and 2087 - 6001 - 00, on the attenuation of the

    通過調整微波脈寬，對wb - cd01型、 2087 - 6001 - 00型等檢波器的靈敏度，對2082 - 4137系列和tts系列衰減器的衰減量，對rg - 142型微波電纜的衰減量進行了實驗測定，結果表明:在微波脈寬大於40ns時，檢波器靈敏度基本無變化;當微波脈寬在20 ~ 40ns時，檢波器靈敏度會有一定變化，變化趨勢和程度與檢波器的型號有關;而上述型號的衰減器和微波電纜的衰減量幾乎不受微波脈寬的影響。
  5. The new characteristics of borehole compensated ability of two transmitters and two receivers acoustic log system were given under a pulse resource and no attenuation ideal beds by numerical simulation

    摘要通過數值模擬計算給出了點聲源、無衰減各種理想地層條件下雙發雙收聲系在不同擴徑層段新的聲速測井響應特徵規律。
  6. As the dispersive influence can be easily described by a frequency transfer function, the feasibility of measuring the function with the g - s algorithm is researched numerically in the next part. from the results of simulation with fibers with different length and pulses with different width, it ’ s known that the convergence of the algorithm is related to the difference between the input and output pulse. then, the influence of attenuation and self phase modulation of fiber is discussed, and the influence of the delay phenomenon and fitted polynomial is also analyzed

    通過對不同光纖長度和不同輸入脈沖脈寬的計算，得到了g - s演算法的收斂性與輸入波形和輸出波形之間的關系;在此基礎上，通過對光纖損耗、自相位調制的模擬，分析了損耗和自相位調制對光纖傳遞函數測量的影響;本文還分析了波形測量中的拖尾現象和多項式擬合對測量的影響，進而，對利用g - s演算法進行單模光纖傳遞函數測量的可行性進行了闡述。
  7. Standard test method for measurement of ultrasonic attenuation coefficients of advanced ceramics by pulse - echo contact technique

    用脈沖反射接觸技術測量高級陶瓷超聲衰減系數的標準試驗方法
  8. This equation can completely describe light pulse transmission actions under numerous circumstances including the fiber dispersidi, attenuation and nonlinearity, and even the polarization state of light

    該方程描述了光脈沖在wdm光纖系統中的傳輸行為，包含了在光纖色散、損耗、非線性效應影響下含有不同偏振態的光信號傳輸情況。
  9. This equation can completely describe light pulse transmission actions under numerous circumstances including the fiber dispersion, attenuation and nonlinearity, and even the polarization state of light

    該方程描述了光脈沖在wdm光纖系統中的傳輸行為，包含了在光纖色散、損耗、非線性效應影響下含有不同偏振態的光信號傳輸情況。
  10. In the method, two transducers were deposited by the two opposite sides of the test member in experiment. based on the attenuation of energy received after the pulse wave penetrates through the test surface, the interior faults can be detected

    超聲透射法通常採用兩個換能器，分別布置在試件兩側，依據脈沖波穿透試件后的能量的變化來判斷內部缺陷。
  11. The application of longitudinal pulse - echo is relatively simple, which can provide information of the thin layers such as the depth, ultrasonic velocity, attenuation etc

    縱波脈沖回波法簡單易行，能夠獲得薄層厚度、聲速和衰減等信息。
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