换能器

Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.

采用水听器作为换能器，通过采集超声信号在空间声场内一点的声压波形。

Results It's indicated that the improved cepstrum method can minimize the influence of transducer impulse response and tissue scatterer properties. It also can be easily implemented with little computation.

结果 改进的倒谱方法能有效减少超声换能器脉冲响应和组织散射特性对倒谱的干扰，而且实现简单，计算量小。

Able to provide our clients with a variety of special chip and transducer.

能为广大客户提供各种特殊的晶片和换能器。

I Division of transducer and the welding head technology and the world's most advanced companies comparable.

我司的换能器及焊头技术能和世界最先进的公司相媲美。

Vector transducer is a kind of transducer which can provide both the information about pressure and particle velocity of sound field.

矢量水听器是一种不仅能够测量声场中的声压信号还能测量其质点振速信号的接收换能器。

Thereinto, the analog receiver, the main body of the UATS preprocessor, conditions the output signals of the receiving transducer, which are amplified and filtered.And the driving circuit implements the low-pass filtering of the D/A converters output signals and offers the result to the power amplifier circuit as its input.In addition, the fathoming circuit acquires the depth information of the underwater electronic equipment cabin to ensure a relatively convenient way to adjust and recover the underwater parts of the system.

其中，模拟接收机完成对接收换能器输出信号的放大、滤波等调理工作，是水声靶标系统预处理机的主体部分；驱动电路实现对D/A转换器输出信号的低通滤波，用以产生功率放大电路的输入信号；测深电路用来获取水下电子舱的深度信息，便于系统水下部分的调整和回收。

The series used circles with transmission, guaranteeing her balance quality and accuracy, ring belt transmission loading convenient, efficient measurement series using JP-380 computer measurement systems, rotational speed, money, phase visual shows, rotors six types can be optional, and can remember the volume imbalance, and other devices can use piezoelectric-type sensors, and the output volume is large, and both small and performance stability.

本系列采用圈带传动，保证了工件的平衡质量及精度，圈带传动装卸方便，工作效率高，测量系列采用JP-380微机测量系统，转速、量值、相位显示直观，转子的6种类型可任选，并能记忆不平衡量，机电换能器采用压电式传感器，输出量大、体积小、性能稳定。

The series used circles with transmission, guaranteeing her balance quality and accuracy, ring belt transmission loading convenient, efficient measurement series using JP-380 computer measurement systems, rotational speed, money, phase visual shows, rotors six types can be optional, and can remember the volume imbalance, and other devices can use piezoelectric-type sensors, and the output volume is large, and both small and performance stability.

本机采用圈带驱动，装卸方便、启动快。本系列采用圈带传动，保证了工件的平衡质量及精度，圈带传动装卸方便，工作效率高，测量系列采用JP-380微机测量系统，转速、量值、相位显示直观，转子的6种类型可任选，并能记忆不平衡量，机电换能器采用压电式传感器，输出量大、体积小、性能稳定。

The transducer assembly (102) includes an inner driver cone (114), an outer driver cone (112) and a dust cap (116) constructed such that the direct path length from the voice coil (110) to the outer driver cone periphery is substantially equal to the distance from the voice coil to the dust cap peak.

换能器组件(102)包括一个内部激励器锥(114)、一个外部激励器锥(112)和一个防尘帽(116)，于是从音圈(110)到外部激励器锥周边的引导路径距离基本等于从音圈(110)到防尘帽顶部的距离。

Flextensional transducer is a typical low frequency, high-power transmitter. It has the advantage of small volume and lightweight due to displacement amplification.

弯张换能器是典型的低频大功率发射器，由于具有振幅放大效应，使其在同等频率下，具有体积小、重量轻的优点。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。