echo measurement 中文意思是什麼

echo measurement 解釋
音響測量
  • echo : n （pl echoes）1 回聲，反響；共鳴，反映。2 重復，摹仿；摹仿者；應聲蟲。3 【音韻學】與上句末音押韻...
  • measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
  1. Acoustics - measurement method of insertion loss and echo reduction for the underwater acoustical material sample

    水聲材料樣品插入損失和回聲降低的測量方法
  2. Acoustics. measurement method of insertion loss and echo reduction for the underwater acoustical material sample

    聲學水聲材料樣品插入損失和回聲降低的測量方法
  3. 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
  4. One - port scattering parameter, i. e., s11 or echo response : this method is similar to fdr, but instead of looking for individual frequencies, a complete echo response measurement is utilized

    單端散射參數：例如， s11或者回波響應：這種方法類似於fdr ，但不是查找每個單獨的頻段，而是使用一個全回波響應測試器。
  5. The results show that these algorithms for attenuation correction can work well in the valid range and their effects on attenuation correction are almost identical. when attenuation is strong or measurement error of real echo is large, however, the result from the h - b algorithm for attenuation correction is not good

    結果表明：在有效的訂正范圍內，幾種訂正方法均能得到很好的訂正，並且訂正效果幾乎保持一致，但h - b演算法在衰減作用很強或實際回波測量值誤差很大時，其訂正結果就變得不可靠了，從而造成訂正能力下降。
  6. This paper is intended to discussion mainly focusing on the six points : the space layout of the garden ; the environmental design, exemplified nature and architecture, the outer and interior decorations in the overall composition ; the guiding principle of gardening, propagating the philosophical view of the confusions " marriage of the soul with nature " ; the dialectical thoughts value added to principle elements of gardens, such as inspired by nature, suitable measurement to local condition, showing and hiding, density and spacing, far and near, ideology guiding practice. . the gardening elements of unity and coherence of space which is mutually penetrated ; the gardening elements of space alignment, such as " views echo with one another, scenes appear at every turn " generally, from the angle of space designing, the paper is trying to provide materials data for understanding and studying for suzhou classical gardens, their imagination - inspiring atmosphere, superb artistry, rich cultural contents as well as gardening artistic characteristics

    蘇州園林作為一門空間藝術具有獨特的魅力，作為文化載體，它積淀了豐厚的文化底蘊。本文主要就其庭院式的空間布局，建築與自然、室內與室外融為一體的環境設計；充滿人文精神的中國儒道「天人合一」的造園思想；因地置宜、順應自然、藏露疏密、虛實遠近、變化統一的辯證思維；相互滲透的空間層次，步移景移的時空間序列的表現手法等問題進行闡述。力求從蘇州園林空間設計的一個側面，去揭示其藝術的特徵、文化的內涵、造園的藝術規律。
  7. Standard practice for evaluating performance characteristics of ultrasonic pulse - echo examination instruments and systems without the use of electronic measurement instruments

    不用電子測量儀，超聲波脈沖迴音試驗制運轉性能的評估的標準操作規程
  8. The measurement of the time interval of ultrasonic send wave and echo used the catch method of 52 series mcu, and avoided the error that the isr save the current value of counter

    超聲波發射波和回波的時間間隔的測量利用了52系列單片機的捕獲方式，避免了因為藉助于中斷服務程序來保存計數器的當前值所帶來的誤差。
  9. 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
  10. The system is based on ultrasonic multiple pulse - echo principle, the control circuit of sonic circulation, can improve the precision of measurement by extending the time of detection

    本系統以超聲波多次脈沖反射法測距原理為基礎，設計聲循環反射控制電路，達到以延長測量時間為代價提高測量精度的目的。
  11. The claim has been made upon the results that the wmt method should be used in the area near the vertical, while the phase difference method in slant beams and a rule has been given to select among those two methods according to the " effect value " on condition the depth is known for the consideration of improving the measurement precision, this paper studies the factors which affect the toa measurements, and three expressions of precision has been introduced as to applications of phase difference method, this paper introduces an automatic hunting method based on amplitude power to get the range of echo arrival

    採用方差分析的方法，使用重復海試數據對wmt法和相位差法的優劣進行了分析，指出了垂直附近應該使用wmt法，而傾斜波束應該使用相位差法；給出了在深度真實值已知前提下wmt法和相位差法使用的判決準則，即根據效應值的大小來選擇。本文從提高測量精度角度出發，分析並驗證了影響toa測量精度的因素；給出了三種精度表示。在應用相位差法時，引入了一種基於幅度能量的區間自動搜索方法；實驗表明該方法能很好地確定回波到達的大概時間范圍。
  12. Therefore, it is necessary for guaranteeing the quality of steel plate to detect and repair the roll profile timely and exactly. this paper presents the sonic circulation and multi - pulse echo principle and designs roll profile ultrasonic measurement system based on the analysis of 3d surface measurement technology and roll profile measurement methods

    本文在分析了三維面型檢測的發展現狀及目前輥型的檢測方法的基礎上，提出了聲循環多次脈沖反射測量原理，並以此為基礎設計了上位機化的超聲波輥型測量系統。
  13. Methods for measurement of thickness by ultrasonic pulse echo technique

    用超音波脈沖回波技術測定厚度的方法
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