[声] 表面声波
As the key component of surface acoustic wave(SAW) gas sensor, the frequency stability of SAW oscillator affects directly the sensitivity and threshold detection level.
作为声表面波（SAW）气体传感器的关键元件，SAW振荡器的频率稳定度直接影响到传感器的灵敏度和检测下限。
ZnO thin films can be used to fabricate transparency electrode, piezoresistor, cell battery window, surface acoustic wave device, gas sensor and light-emitting diode etc.
它可以被用来制作透明电极、压敏电阻、太阳能电池窗口、表面声波器件、气体传感器、发光二极管等。
The paper introduce the theory of surface acoustic wave sensor, the digital signal treatment, the method of soft design in the passive and wireless tire pressure monitoring system in detail.
文章详细介绍了无源无线轮胎压力监测系统中的声表面波传感器工作原理、回波信号组成、数字信号处理和软件开发方法；
This paper is to display existence and its conditions to a surface acoustic wave propogating along surface of a half-body of piezoelectric ceramics with a rotation of constant angular velocity.
对转动半无限压电陶瓷体的表面声波给出了存在性证明及其条件。
OBJECTIVE To design the detection system of the leaky surface acoustic wave(LSAW) biosensor in(liquid) phase and detect human papilloma virus(HPV) target sequence with the LSAW biosensor.
目的建立漏声表面波生物传感器液相检测技术平台，并用该检测系统实时检测人乳头瘤病毒（HPV）。
The surface acoustic wave(SAW) sensor can transform the measured object into frequency output, viz a kind of digital signal output.
声表面波（SAW）传感器能将被测量转换成容易检测的频率信号，即一种准数字信号的输出。
New development of ultrasonic motor, surface acoustic wave motor is introduced.
给出了超声马达的新进展—声表面波马达。
A new passive and wireless Surface Acoustic Wave (SAW) sensor array is introduced.
介绍了一种新型的无源、无线声表面波传感系统。
The operating principle and optimization design for Surface Acoustic Wave (SAW) motor are investigated.
探讨了表面弹性波马达的工作机理和优化设计。
Because its driving signal is surface acoustic wave, thus it overcomes the shortcomings of complex structure, difficult fabrication and miniaturization in normal ultrasonic motor.
由于其驱动信号是可以由结构简单的叉指电极激发的声表面波，因而克服了一般的超声马达结构复杂，制造困难以及小型化困难等缺点。
The present status and recent progress in the development of surface acoustic wave sensors for physically- sensitive and chemically- sensitive use are reviewed.
评述了用于物理敏感和化学敏感的声表面波传感器的现状和进展。
A minitype of GHz transverse surface acoustic wave oscillator for radar is introduced in this paper.
介绍一种用于雷达的小型表面横波振荡器。
The wireless identification tags system based on surface acoustic wave (SAW) sensors can identify different objects by reading respective identification codes in a passive mode.
构架了一种基于声表面波延迟线式的无线标签识别系统。
An passive and wireless sensor system using a surface acoustic wave(SAW) resonator is described.
介绍了一种基于声表面波谐振器的无源无线温度传感系统。
The next device we examined was a Surface Acoustic Wave (SAW) device.
我们检测的下一个装置是表面声波装置（SAW）。
In this work, a stable SAW oscillator based on SAWR (surface acoustic wave resonator) was designed. It contains an RF amplifier and a necessary LC phase shifter network.
首先基于声表面波谐振器（SAWR），采用射频放大器和必要的LC移相网络，设计出输出频率稳定的振荡器。
Process with SAW gas sensor to study the SAW sensor is a feasible method. The paper has carried on research from the relation theory of surface acoustic wave.
声表面波传感器属微传感器，可在一定程度上改善上述性能，从气敏传感器入手研究声表面波传感器具有一定优势。
The utility model adopts surface acoustic wave filter, and the circuit is ****** to realize.
采用声表面波滤波器，电路实现简单，调整方便，一致性好。
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。
We stu***d and developed the method of applying the surface acoustic wave to detect the crack depth in concrete.
我们发展了应用稳态表面波检测裂缝的新方法及检测仪器。
Surface Acoustic Wave Filter (SAWF) is a sort of analogue device for signal processing.
声表面波器件是一种新型的模拟信号处理器件。
ZnO can be used to fabricate transparency electrode, piezoresistor, cell battery window, surface acoustic wave device, gas sensor and light-emitting diode etc.
它可以被用来制作透明电极、压敏电阻、太阳能电池窗口、表面声波器件、气体传感器、发光二极管等。
This paper reports the two-dimensional actuation of a water drop by using a Surface Acoustic Wave(SAW).
报道了利用声表面波实现水滴二维驱动的实验。
A phase interference method, for measurement of the relative change of surface acoustic wave velocities, is presented.
本文提出了一种相位干涉法。 用来测量表面声波速度的相对变化。
The paper stu***s in passive and wireless tire pressure monitoring system base on surface acoustic wave which can realize small passive and high accuracy in ****** structure.
本文研究的是基于声表面波原理的无源无线轮胎压力监测系统，它可以实现高分辨率、小体积、无电池的简化结构。
表面声波（Surface Acoustic Wave，SAW）是一种沿着固体材料表面传播的机械波，其能量集中在距表面约一个波长的范围内。该现象由英国物理学家瑞利于1885年首次在理论上预测，现已成为现代电子工程领域的重要基础技术。
技术原理
表面声波通过压电材料（如石英、铌酸锂）表面的叉指换能器产生，当交变电压作用于换能器时，材料内部产生周期性形变，形成波长由电极间距决定的声波。其传播速度约为电磁波的十万分之一，这种特性使其在信号处理中具有独特优势（IEEE超声波研讨会论文集，2022）。
核心应用
行业标准
国际电工委员会（IEC 62276）对表面声波器件的测试方法作出了明确规定，包括频率稳定性、温度系数等关键参数。中国电子元件行业协会2023年白皮书显示，全球SAW器件市场规模已达58亿美元，年复合增长率9.7%。
"surface acoustic wave"（SAW）的详细解释如下：
SAW全称为Surface Acoustic Wave，中文译为声表面波，是一种在压电材料表面传播的机械弹性波。其特点是振幅随着深入材料内部而迅速衰减，能量主要集中在表面附近。这种波通过压电效应实现电信号与机械振动的相互转换。
SAW器件利用压电材料的特性，通过表面微细结构（如叉指换能器）激发和接收声波。当电信号输入时，压电材料表面产生形变，形成声波传播；声波到达另一端时再转换为电信号输出。
SAW技术结合了压电学与微电子技术，具有高频、低损耗、小型化等优势。其核心术语“surface”指波的传播局限于物体表面，“acoustic wave”则强调其为机械振动形式的能量传递。
如需进一步了解具体器件结构或应用案例，可参考相关专业文献或技术文档。
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