駐體傳聲器 的英文怎麼說
中文拼音 [zhùtǐzhuànshēngqì]
駐體傳聲器
英文
electret condenser microphone-
Jiangnan acoustic factory was established in 1988. it is a joint stock company which develops produce and manages buzzer ( magnet buzzer & piezo buzzer ), mylar speaker and transducer etc
武進市江南訊響器廠成立於1988年，是一家專業開發.生產.銷售蜂鳴器（電磁式&壓電式） ，薄型喇叭和駐極體傳聲器等股份制企業Design of heart sound processing analog circuit based on the electret capacitor microphone
基於駐極體電容傳聲器的心音模擬處理電路的設計It also gives a safety design problem analysis using an electret capacitor microphone to pick - up the heart sound signals
該電路涉及到放大、濾波、電平抬升等電路，並給出了安全設計問題，利用駐極體電容傳聲器來拾取心音信號。It was demonstrated that this sort of load - control apparatus has superior performance. we used a electric transmitter as the transducer to collect the sound signal, using the daq toolbox of the matlab to achieve the collection of the sound signal, and using the dsp toolbox of the matlab and the sound - launch technology to analyze the time - domain characteristic and the frequency - domain characteristic of the signal, chiefly analyze its short - time average amplitude, its short - time over - zero ratio and its estimate of the power chart and the average - period chart
實驗中使用了駐極體話筒作為球磨機聲音拾取傳感器，利用matlab中的數據採集（ daq ）工具箱實現對磨音的採集，利用matlab信號分析（ dsp ）工具箱和聲發射技術對磨音進行時域和頻域分析，主要分析磨音的短時平均幅度和能量、短時平均過零率、功率譜估計和平均周期圖。In the course of theory analyses, acoustic / vibration signal acts on the coupling area of a coupler. there are two different actions - horizontal operation and vertical operation and two different transmissions - traveling wave and standing wave. the responses of the sensor analyzed with matlab shows that the length of coupling and the frequency of acoustic / vibration signal will influence the sensitivity of the sensor
理論分析過程中，聲振動信號對傳感器的耦合區有不同作用方式（橫向作用縱向作用）以及不同傳播形式（駐波傳播/行波傳播） ，用數學軟體matlab對其響應進行模擬分析，得出了耦合長度和聲振動信號頻率會影響傳感器的靈敏度。分享友人