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其他行业 * acousticfeatures.m: Matlab script to generate training and testing files from event timeseries. *
* acousticfeatures.m: Matlab script to generate training and testing files from event timeseries.
* afm_mlpatterngen.m: Matlab script to extract feature information from acoustic event timeseries.
* extractevents.m: Matlab script to extract event timeseries using the complete run timeseries and the ...
技术资料 声发射技术在复合材料发展中的应用
声发射技术在复合材料发展中的应用：声发射(Acoustic emission简称AE)又称应力波发射，是材料或零部件受力作用产生变形、断裂，或内部应力超过屈服极限ss 而进入不可逆的塑性变形阶段，以瞬
技术资料 医疗超声解决方案-英文
医疗超声解决方案-英文Medical Ultrasound System Theory and Typical Architecture the transmit voltage is increased, but it is limited by safety requirements
By transmitting acoustic energy into the body and receiving and processing the ...
模拟电子 MEMS麦克风有助于提高系统设计效率
A MEMS microphone IC is unique among Analog Devices, Inc., products in that its input is an acoustic pressure wave. For this reason, some specifications included in the data sheets for these parts may not be familiar, or familiar specifications may be applied in unfamiliar ways. This application not ...
书籍 MEMS-based+Circuits+and+Systems
Over many years, RF-MEMS have been a hot topic in research at the technology
and device level. In particular, various kinds of mechanical Si-MEMS resonators
and piezoelectric BAW (bulk acoustic wave) resonators have been developed. The
BAW technology has made its way to commercial products for passi ...
技术资料 基于PIC单片机的随钻声波测井仪电源管理设计
为了保证随钻声波测井仪在井下长时间高效率工作,需要对电源管理板进行高效管理;根据随钻声波测井仪电子系统的供电特点设计了电源管理控制电路,低功耗微处理器PIC单片机根据随钻测量系统的指令对电源电路开关阵列进行控制,通过CAN-UART对主控板进行工作参数下发,利用实时钟电路提供的时间信息完成对井深和井下存储数据的映射 ...
文件格式 This project aim was to build wireless software modem for data communication between two computers
This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (fr ...
其他书籍 Commercially available active noise control headphones rely on fixed analog controllers to drive "an
Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particularly useful for workers who operate or work near heavy machi ...
书籍 Radio Wave Propagation
One of the prerequisites for the development of telecommunication services is the
understanding of the propagation of the waves, either acoustic, electromagnetic,
radio or light waves, which are used for the transmission of information.
In this work, we shall limit ourselves to the study of radio wa ...
技术资料 一种应用STC89C51单片机的地压监测系统设计
文中设计了一种应用STC89C51单片机的地压监测系统,选择AVR Studio软件平台开发得到所需的应用程序系统,利用AVR汇编语言程序进行编辑、编译并生成所需的目标代码。设计的软件监测系统可以对5个监测点产生的声发射数据进行实时监测与数据收集,系统主机和通信模块之间通过串口进行连接,快速采集来自地下矿场所有监测点的数据。 ...