拾頻器 的英文怎麼說
中文拼音 [shíbīnqì]
拾頻器
英文
frequency adaptor-
Jhs series power ampilifier is a new generation equipment of teaching power amplifier, which can restrains howl and can increase plus by 6 - 10db. the distance of picking up sound can be increased to 3 - 6 meters. if only you install three or four pcs of interface mike, the scope of picking up sound can cover with all over the platform without any equipment and you can prelect
Jhs教學型數字移頻擴聲器是新一代教學擴聲設備，它能夠有效的抑制擴聲嘯叫，提高傳聲增益6 - 10db ，話筒的拾音距離提高到3 - 6米，只需在教室安裝3 - 4支界面話筒，拾音范圍就能覆蓋整個講臺，無需攜帶任何設備，即可進行講課，使演講者徹底擺脫話筒的束縛，擴大了演講者的活動范圍Audio high density. system of digital audio recording on grooveless discs, employing an electronically - guided capacitance pickup
音頻高密度。非凹槽唱片上的數字音頻錄音系統，採用一種電子導向的電容拾音器。The system introduces 991 ultra - low frequency pick up, and takes the vibration signal as the simulation input of practical measurement, which makes the s ystem can measure the ultra - low frequency vibration of long, large, tall and flexible structures and the low frequency vibration of engineering and site
系統引入991型超低頻拾振器，將其拾取的振動信號作為本系統實際應用測試中模擬輸入，使系統可對長大高柔結構的超低頻振動和一般工程及場地的低頻振動進行測量。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。A medium frequency - small size vector hydrophone of co - vibrating type is wrapped with low density compound material and in shuck only one piezoelectric ceramic accelerator is used for each channel to measure the vector components of the underwater acoustic field
摘要中頻小型同振式矢量水聽器採用低密度復合材料作為矢量通道外殼、壓電加速度計作為內部振動傳感器，以拾取水下聲場中的矢量信息。However, the normal electromagnetism rate transducer which has the high inherent frequency of that between 5 - 30hz normally can not get the signal below 1 hz, therefore, it can not be used for inspecting same signal, which confines its applications in engineering project
然而，由於普通的電磁式速度傳感器，其固有頻率較高，一般都在5 - 30hz之間，很難拾取1hz以下的超低頻絕對振動信號，因此不能直接用來測量上述超低頻振動信號，制約了該類傳感器在工程中的應用。分享友人