電換能器 的英文怎麼說
中文拼音 [diànhuànnéngqì]
電換能器
英文
electric transducer-
Electro - acoustic transducers, general specifecation for
可逆電聲換能器組總規范Most laboratory methods use some type of electromechanical transducers.
多數實驗方法都使用某種機電換能器。Relaxor ferroelectric single crystals, such as pb ( mg1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pmnt ) or pb ( zn1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pznt ), have been reported to exhibit an extremely large piezoelectric constant and excellent electrostrictive properties. such excellent performance makes it fully substitute the traditional piezoelectric ceramics and points to a revolution in ultrasonic transducers, actuators and micro - positioners, making relaxor - based piezocrystals the most promising materials for a broad range of advanced applications. however, it is difficult to grow the high quality single crystals because of the lack of valid thermodynamic data
新型弛豫鐵電單晶鈮鎂酸鉛(簡稱pmnt )或鈮鋅酸鉛(簡稱pznt )是一類新興的功能材料,其在準同型相界附近具有優于傳統壓電陶瓷的較高的壓電常數和電致伸縮系數,可完全代替傳統的壓電陶瓷作為超聲換能器、致動器、微位移器等,使其成為鐵電領域的研究熱點,但如何生長出滿足應用要求的單晶材料卻一直是一個困擾的問題。This paper researches and analyses the developments of web technology and magnetostrictive transducers from world wide region. the paper also analyes the characteristics curve of magnetostrictive transducers based on its equivalent circuit and researches the method how to make sure its syntony frequency and its electric simulation network parameters. at the same time, by using jsp technology, a magnetostrictive transducer electric simulation application is designed based on b / s three - tier system structure. the experiment data is fitted by curve fitting module. the equivalent input impedance of it with stimulate loop is separated based on the results of curve fitting and the syntony frequency and electric simulation network parameters of magnetostrictive transducers is determined by the input impedance. the method presented in this paper can determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers with a better accuracy than the testing method of syntony & anti - synton y. further more, jsp, the advanced technology at current, has been used to realize a magnetostrictive transducer web electric simulation system. the system has good human computer interface and the function of resource sharing and information publishing. the research of this paper and its achievements have some practical merits in the researchful and applied fields of magnetostrictive transducer
用java編程語言編寫的曲線擬合模塊,對輸入的實驗數據進行了最小二乘法的曲線擬合;根據曲線擬合結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時由機械振動形成的等效輸入阻抗,並由此輸入阻抗確定磁致伸縮換能器的諧振頻率及電氣模擬網路參數。本課題提出的方法與傳統的諧振?反諧振法相比,能更準確地確定磁致伸縮換能器的諧振頻率及其電氣網路參數。同時,採用當前比較先進的web技術,實現了基於jsp的磁致伸縮換能器web電氣模擬系統,該系統具有良好的人機界面和資源共享、信息發布功能。Overcome the disadvantages of drive voltage too high, bad delicacy and needing add insulation to control transmitting - receipting
克服收發一體換能器驅動電壓高,靈敏度差,需考慮收發隔離等缺點。We calculated the electro - acoustical characteristics of designed transducer using the postprocess functions of ansys. according to the above work, we manufactured and measured the real outboard - driven flextensional transducer, then comparing with calculating result
基於以上工作,我們製作了外部驅動彎張換能器的實驗樣機,對實驗樣機的電聲特性進行了測量,並與計算結果進行了對比。To utilize property of saws propagating, it can be made including delay lines, passband filters, oscillators and pitch filters. surface transverse wave ( stw ) was used the configurature of reflective metal - strip grating between the two interdigital transducers, and made the shear horizotal ( sh ) wave on the surface of the piezoelectric substrate, but not to deep in
聲表面橫波( surfacetransversewave ,簡稱stw )是採用在兩個金屬叉指換能器之間加入短路柵的隔離板結構使剪切水平波( shearhorizontalwave ,簡稱sh波)被嵌制在壓電基片表面上,而不是沿壓電基片內傳播的聲表面橫波形式。Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment
在windowsnt系統環境和labview虛擬儀器技術開發平臺下,首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊,設計了一種對實驗所得數據進行曲線擬合的方法,對三種擬合方法進行了比較,曲線擬合結果表明,多項式擬合方法相對于其它兩種擬合方法效果更好;根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗,並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數;最後通過labview提供的網路功能,實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統,並探討了通過datasocket技術實現該系統網路化的方案。The input impedance of the interdigital saw transducer is measured by the equivalent circuit method. the experimental results show that the synchronized frequency of 9. 586 mhz, the acoustic radiation resistance of 44. 6 and the static electrode capacity of 194pf all agree with those design values
用自行設計的等效電路測量方案,測量了表面彈性波馬達換能器的輸入阻抗,實驗結果顯示表面彈性波換能器的共振頻率為9 . 586mhz ,輻射聲電阻為44 . 6 ,叉指電極靜電容為194pf 。We decided to use the axial polarized model as our investigate object after comparing. with theoretical and emulational methods, we studied the properties of cymbal transducer are dependent of the dimensions of metal endcaps and pzt thinner circle plate. and obtained the optimized dimensions
採用理論和有限元模擬相結合的方法,研究了金屬端蓋和壓電陶瓷片( pzt )的形狀參數對cymbal換能器的縱向位移及諧振頻率等性能的影響,確定了試樣的最佳形狀參數。The emphases of our research works are as follows : under ultra - low temperature ( about 0. 236k ) conditions, how the frequency and power of the saw and the source drain voltage influence the acoustic current ; and the relationship between the source drain current and the split - gate voltage ; and how to find the cut off voltage of the quasi - 1d electron channel ; and also the frequency character of the idt in the saw parts
研究的重點為,在甚低溫( 0 . 236k )下,通過實驗研究表面聲波的頻率和功率,源漏偏壓等因素對聲電電流的影響;研究準一維電子通道中不同源漏電流與分裂門負偏壓的關系,以找到分裂門的鉗斷點電壓;以及研究聲表面器件叉指換能器的頻率特性等。Surface acoustic wave ( saw ) motor is a novel micro actuator, which generates saw with the electroacoustic transducer and transfers it to the power of saw motor by the frictional force between the slider and the stator
表面彈性波馬達是一種以電聲換能器產生表面彈性波,並通過馬達動子和定子的接觸摩擦將表面彈性波振動轉換為馬達動力的新型執行器。But to circular plate with large surface area, the vibrate modes generated is often so high that there is reverse phases existing, which result in a decrease in radiation impedance, electric - acoustic efficiency and the electric power, as well as poor directivity
然而對于輻射面積較大的彎曲振動圓盤,一般激勵的振動階數比較高,因此存在彎曲振動的反相區,導致換能器的輻射阻抗下降,電聲效率和聲功率降低以及指向性變差等問題。Load characteristics of high power sandwich piezoelectric ultrasonic transducers
夾心式功率超聲壓電換能器負載特性研究Acoustics - characteristics and measurements of ultrasonic piezoelectric transducers up to 100khz
聲學100khz以下超聲壓電換能器的特性和測量Design of wide - band longitudinal mode piezoelectric transducers with impedance matching layers
具有阻抗匹配層的寬帶縱向振動壓電換能器設計The central frequency and bandwidth of ln one - dimension anisotropic aeo device are determined by experiment. the changing rate of central frequency of ln
設計工作包括利用傳輸線的瑪森等效電路理論確定這兩個器件的壓電換能器最佳鍍膜結The operating principle, design method, mading technology, empirical analysis of horn - type longitudinal tonpilz piezoelectric transducer. and. the software of transducer aided design for this type
介紹擁有喇叭型前蓋板的縱振tonpilz型壓電換能器的工作原理,設計方法,研製工藝和試驗分析。Therefore, the piezoelectric ceramic with desired structure and properties can be obtained by introducing pms materials and pzn materials into pzt materials, which has great potential of being widely applied in many fields, especially in advanced sound - electricity transducer
將二者共同引入pzt結構,可獲得較為理想的綜合性能。這種材料在諸多應用領域都有著較好的應用前景,在聲電換能器方面的應用前景尤為受到人們的普遍關注。The new stress field mode is exploited to implement a novel rotational stress field piezoelectric micro - motor scheme that enables stress field operation. analysis for both modes of operation is presented along with experimental results. a high - order, efficient scheme for computing both the power and the electric perimeter of the mems piezoelectric micro - motor system is presented along with comprehensive analysis for this class of motor
應用經典的彈性動力學和壓電學原理,以模型實驗的微觀致動機理為依據,設計了具有新概念的彈性體和壓電換能器結構的旋轉應力場壓電電機,提出並驗證了應力場致動理論,在微觀上統一了各類壓電電機的致動機理。分享友人