脈沖回聲 的英文怎麼說
中文拼音 [màichōnghuíshēng]
脈沖回聲
英文
echo sound impulse-
Measuring thickness by ultrasonic pulse - echo contact method
接觸式超聲波脈沖回波法測厚Standard practice for ultrasonic pulse - echo straight - beam examination by the contact method
用接觸法做超聲脈沖回波縱波檢驗Standard practice for measuring thickness by manual ultrasonic pulse - echo contact method
用人工超聲脈沖回波接觸法測量厚度的標準實施規程Method for assessing the overall performance characteristics of ultrasonic pulse echo testing instrument
評定超聲脈沖回波檢驗儀綜合性能特徵的試驗方法Method for assessing the electrical characteristics of ultrasonic testing instrument using pulse echo technique
採用脈沖回波技術評定超聲檢驗儀電氣特性的試驗方法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By means of the echo auto - searching algorithm, the automatization of signal processing is realized. the filter algorithms are given to eliminate electric and pulse noise, the measuring reliability is improved greatly. furthermore, the accuracy of time difference measure is improved greatly by using the correlation algorithm and the wavelet algorithm
提出的自動搜索回波演算法，實現了回波數據處理的自動化;給出的改進滾動去極數字濾波演算法和極值濾波演算法，消除了電噪聲和脈沖噪聲，提高了測量的穩定性;提出的插值相關流量測量演算法、小波包絡壓力測量演算法大大提高了測量的精度。Methods of measuring the performance of ultrasonic pulse - echo diagnostic equipment
超聲波脈沖回波診斷設備性能的測定方法Wavelet transformation technology is applied to the small - current sensor, and the constructed pulse - respone function of the surface - acoustic - wave transducer is comsidered as a wavelet function, thus the surface - acoustic - wave type of element for wavelet - transformation and reconstruction is manufactured to filter the jamming signal of the small - current sensor effectively
把小波變換技術應用到小電流感測器中，構造的聲表面波換能器脈沖回應函數等於小波函數，從而製造出了聲表面波式小波變換及重構器件，該器件可有效濾除小電流感測器的干擾信號。Based on the analysis of ultrasonic imaging theory, the paper puts forward a signal processing scheme in synthetic aperture focusing technique
本文首先介紹了超聲成像的理論基礎，分析了脈沖回波系統解析度不高的原因及一般改進措施。This paper introduces two methods of ultrasonic characterization of thin layers : longitudinal pulse - echo and lamb waves
摘要介紹了兩種常用的材料薄層超聲表徵方法縱波脈沖回波法和蘭姆波法。The wavelet ' s characteristic of focus " varieties make wavelet better analyses ability in the time field and the frequency field. it is a perfect method of analyzing non - steady signal, and it is fit to analysis ultrasonic pulse echo signal
而小波的「變焦距」特性使得小波分析在時域和頻域中都具有良好的分析能力，是一種理想的分析非穩態信號的途徑，適于對超聲脈沖回波信號的分析。Ultrasonics - real - time pulse - echo systems - test procedures to determine the performance specifications
超聲波學.實時脈沖回聲系統.測定性能規范的試驗過程Ultrasonics - real - time pulse - echo systems - guide for test procedures to determine performance specifications
超聲波學.實時脈沖回波系統.測定性能規范的試驗程序指南Testing method for ultrasonic pulse echo technique of carbon fibre reinforced plastic panels
碳纖維增強塑料板的超聲脈沖回波技術的試驗方法Standard practice for measuring the change in length of fasteners using the ultrasonic pulse - echo technique
使用超聲脈沖回波技術測量緊固件長度變化的標準操作規程Acoustic pulse echo system
聲脈沖回聲測距系統Standard guide for detection and evaluation of discontinuities by contact pulse - echo straight - beam ultrasonic methods
用觸點脈沖回聲直束法探測和評價不連續性的標準指南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。Through the spread time of ultrasonic signal is processed by digital correlation method, measuring the velocity of ultrasonic speedily and accurately is achieved
利用超聲脈沖回波法在溫度箱內測定了某合金材料在20 ~ 60的彈性常數，研究了溫度對該材料彈性模量的影響。分享友人