这相当于一个光声版本的无线电频率条形码,可以用在需通过自动收费站的车上,或者给商品打价签。
This could be used like an optoacoustic version of the radio-frequency bar codes that are used by cars passing through the pay booths of automated toll roads or to tag some goods in shops.
光声技术由于其高灵敏度的特性目前被广泛应用于痕量气体检测领域。
Photoacoustic technology is widely used in fields of trace gas detection due to its high sensitivity.
针对激光小孔效应焊过程中等离子体辐射出特征光并伴随特征声的现象,提出了采用光声信号联合实时监测激光焊接质量的方案。
A quality monitoring system has been developed for laser-welded tinplate using specific optic and acoustic signals generated by the plasma during "keyhole" welding.
本文提出光声相位精细谱法(PAPFS)。
In this paper, photoacoustic phase-fine spectroscopy (PAPFS) was proposed.
组建了光声检测系统。
提出了气相光声激光磁共振的新方法,并作了理论解释。
A new method is proposed in this paper, which is photoacoustics laser magnetic resonance (PALMR)in gas phase.
简要介绍了光声成像技术的基本原理,采集系统和成像算法。
A brief introduction of photoacoustic imaging mechanism, imaging systems and image reconstruction algorithm is given.
详细研究了激光反射光声法的测定原理、实验装置及影响参数。
The principle of laser reflection photoacoustic detection, its experimental setup and the influencing parameters are described.
但常用的光声仪器的现场性、实时性较差,一般红外吸收法又不如前者灵敏。
However, photoacoustic techniques can hardly provide in-situ measurement and gas filter correlation techniques are of less sensitivity.
本文提出一种利用光声技术同时在线测量CO浓度和烟雾消光的非接触式方法。
This paper presented a new non-contact method to meter co concentration and smoke optical density simultaneously and online based on photoacoustic technology.
实验结果表明,这些措施都能使光声信号增强,有效地提高光声检测的灵敏度。
The experimental results showed that the PA signal enhancement can be obtained by making use of the every one of the factors above, and so the sensitivity of PA detection was increased effectively.
以固体光声效应的RG理论为依据,用光声法测量了压电陶瓷材料PZT的热参量。
According to the RG theory of the photoacoustic effect with solids, the thermal parameters of PZT ceramic material have been measured by using photoacoustic method.
本公开涉及一种能够同时生成PA图像和超声图像的组合光声(PA)和超声成像系统。
The present disclosure is directed to a combined photoacoustic (pa) and ultrasound imaging system capable of generating pa and ultrasound images simultaneously.
光声法检测痕迹气体浓度,是一种具有高选择性,高灵敏度,高稳定性的气体检测方法。
It's a high selectivity, high sensitivity, high stability way that use photo acoustic method to detect trace gas concentrations.
本文使用共振多程池的光声探测法对CO_2和SF_6分子的无多普勒饱和吸收光谱进行了实验研究。
The Doppler-free saturated spectroscopy of the CO2 and SF6 molecules is investigated experimentally by using optoacoustic detection with a resonant multipass cell.
光声位相在测定样品的光学和热学性质、样品无辐射弛豫过程的研究以及深度剖面分析等方面显示了特有的能力。
Photoacoustic phase shows the special ability of measuring the optical and thermal properties, studying the nonradiative relaxation processes and analyzing the depth profile of the sample and so on.
提出了用激光反射光声法测定水样中的苯胺,对方法原理、实验装置以及苯胺的最佳显色条件进行了详尽的讨论。
The laser reflection photoacoustic method was designed for the determination of aniline in water. The basic principle, the experimental setup and the influencing factors were discussed in detail.
声音粒子,即声子,和光的粒子(光子)或者其他基本粒子,都受海森堡的不定性原理影响。
And particles of sound, known as phonons, are just as susceptible to Heisenberg's uncertainty principle as particles of light (photons) -or, indeed, any other fundamental particle.
他们被身后巨大的碰撞声和树枝折断的声音吓了一跳:原来是Benny,他跌跌撞撞地跑进手电光形成的光池里。
They were startled to hear loud crashing and branches snapping behind them, but it turned out to be Benny. He stumbled into the pool of light cast by the flashlight.
我可不像年轻人,声、光、电、影一样都少不了。我有本书看看就行了。
I am not like those young people fancy a feast of sound and light and electricity and pictures - I only need a book - oh, did I miss popular music?
舞台设计灵动多变,充分展现声、光、影的完美整合。
The flexibly designed stage shows the perfect integration of sound, light and pictures.
此时,加尔各答以南的桑德班斯地区是摄影师的乐土,因为大自然在这里上演着一幕幕不可思议的光与声交错变幻的大戏。
The 29 Sunderbans area south of Kolkatta is a photographer's delight during the monsoon with miraculous plays of light and sound put on by Mother Nature.
突然,一个眼尖的村民朝着森林边上一点奇异的光指去并喊了一声。
Suddenly, a sharp - eyed farmer gave a shout and pointed towards a strange light at the edge of the woods.
过了一会,我听见路上有脚步声,一盏提灯的光一闪一闪地进了大门。
In a while, I distinguished steps coming up the road, and the light of a lantern glimmered through the gate.
本文以应用较多的光测技术为主,综述了细观力学测量中光、声、磁、射线等试验技术。
In this paper the measurement methods based on optics, acoustics, magnetics and radiology are mentioned for research of mesomechanics.
科学家将光与声子的交互作用称为拉曼效应。
Scientists call the interaction of light with phonons the Raman effect.
科学家将光与声子的交互作用称为拉曼效应。
Scientists call the interaction of light with phonons the Raman effect.
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