A capacitive micro-acoustic sensor with a polysilicon film as diaphragm was designed in this paper.
设计了一种以多晶硅薄膜作为振动膜片的电容式硅微声传感器。
Some applications on fem in the micro loudspeaker modal analysis and the acoustic response simulation are introduced.
介绍了有限元法在微型扬声器振膜模态分析以及声响应分析中的一些应用。
Because of the compact design of flip chips and CSP on PCB, acoustic micro imaging has become extremely important for inspecting these packages.
由于在印制电路板上的倒装芯片和CSP器件的紧凑设计，声音微图像己经成为检测这些封装的非常重要的一部分。
The imaging logging series such as dipole acoustic log and micro - resistivity scanning imaging log, etc. provides abundant basic data for the research of stress.
成像测井系列中的偶极子声波测井和微电阻率扫描成像测井为地应力研究提供了丰富的基础数据。
Abstract: the simulation of acoustic emission signal processing of pressure pipeline crack micro leakage with the localization of the leaking source was carried out under the laboratory condition.
摘要：在实验室的条件下模拟压力管道裂纹微泄漏源的声发射信号处理与泄漏源定位。
Results show that the acoustic system of micro perforation plate can effectively reduce discharge noise.
试验表明，微穿孔板吸声结构可有效地降低排气噪声。
In this paper, the nonlinear acoustic impedance of the micro-perforated panel is investigated both theoretically and experimentally.
本文对微穿孔板的非线性声阻抗率作理论与实验两方面的研究。
The principles of laser generated surface acoustic waves (SAWs), the method of micro cracks detection and the applications are proposed.
介绍了激光超声表面波的产生机理、微裂纹的检测方法及其应用。
The audio frequency inspection system is mainly composed of the impulse excitation device, acoustic sensor, signal conditioning circuits, data acquisition card and micro-computer and so on.
音频检测系统主要由脉冲激励装置、音频传感器、信号调理电路、数据采集卡和微型计算机等部分组成。
In this paper, the new field of electron microscopy: micro-zone properties of so-lid state such as the optical, electric, magnetic, acoustic property and the deep energy level were shown.
本文介绍了电子显微术中一些较新的固体微区特性研究方法及其在半导体物理等固体物理分支学科中的应用。
As mixture for droplets is important and needs to be improved in lab-on-a-chip, a fast mixing method for digital droplets in micro-channel driven by surface acoustic wave is proposed.
微流体混合是微流控芯片急需完善的重要操作单元，提出了在声表面波驱动下实现微通道内数字微流体快速混合方法。
Acoustic emission (AE) sensors are used to monitor tool conditions in micro-milling operations.
应用声发射传感器对微铣削过程中的刀具状态进行监测。
Lots of acoustic emission during the entire loading are recorded. The recording is able to indicate the occurrence time, location and magnitude of every damage (micro-crack) in the specimen.
实验过程中记录到大量的声发射信息，它能够反映岩石试件内部每一个损伤(微裂纹)发生的时间、地点和强度。
Lots of acoustic emission during the entire loading are recorded. The recording is able to indicate the occurrence time, location and magnitude of every damage (micro-crack) in the specimen.
实验过程中记录到大量的声发射信息，它能够反映岩石试件内部每一个损伤(微裂纹)发生的时间、地点和强度。
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