This paper introduces the design of the S-band total power radiometer which can be used for calibration of the noise source, and design of its IF amplifier. Recording curves of the stability and sensitivity of the radiometer are also given. 文中介绍了用于校准噪声源的一种S波段的全功率辐射计及其中频放大器的设计,并给出了该辐射计的稳定性和灵敏度记录曲线。
: Instead of traditional Fourier method, wavelet analysis was used to realize such functions as decomposition, filter, local signal analysis of weak magneto-optical recording films 'signal. It can greatly improve the sensitivity of measurement and efficiently analyze the basic properties of magneto-optical recording films. 利用小波分析方法取代传统的傅立叶方法对微弱的磁光记录薄膜信号进行分解、滤波和局部信号处理,大大提高了测量的灵敏度,更好地分析了磁光记录薄膜的基本特性。
The sensitizing light increases the recording sensitivity, and the saturation behavior will appear with enough high intensity of sensitizing light. 敏化光增加了记录灵敏度,足够高的光强将导致灵敏度的饱和行为。
For recording materials prepared from same copolymer, their UV sensitivity are related to the sequence distribution of the copolymer, especially P2 ( M1M2). 对同一类共聚物记录材料而言,光敏性与共聚物的序列分布,主要是P2(M1M2)有对应关系。
In this paper we describe a method to improve the recording sensitivity by twice reflections of light ray without changing the inherent sensitivity of the instrument. 本文在基本不改变仪器固有灵敏度的前提下,采取记录光线二次反射法,以提高仪器的记录灵敏度。
Oxidation treatment increases the absorption of crystals, and also increases the recording sensitivity and saturated diffraction efficiency, which is different from the dependence on oxidation state in LiNbO_3 ∶ Fe crystals. 氧化处理会增加LiNbO3∶Ru晶体对光的吸收,同时提高光栅记录的灵敏度和饱和衍射效率,表现了不同于LiNbO3∶Fe晶体的氧化态依赖特性。
A Novel Holographic Recording Film with Stratified Sensitivity 一种新型叠层光敏全息记录软片
Geometry recording configuration must be applied because such arrangement has the highest selectivity sensitivity, good uniformity of diffraction efficiency and relatively simple system. 这样的配置具有最高的选择灵敏度、较好的衍射效率均匀性以及相对简洁的系统;
The results show that the saturation diffraction efficiency, the fixing diffraction efficiency and the recording sensitivity of oxidized LiNbO_3 ∶ Fe ∶ Ni crystal are higher than those of other reported doubly doped LiNbO_3 crystals. 结果表明,氧化LiNbO3∶Fe∶Ni晶体的饱和衍射效率、固定衍射效率和记录灵敏度比其他报道的双掺杂LiNbO3晶体高。
Holographic recording experiments of doubly-doped LiNbO_3 ∶ Fe ∶ Ni crystals are conducted by three kinds of different twocolor recording schemes. In detail, the saturation diffraction efficiency, the fixing diffraction efficiency, the recording sensitivity and the effect of annealing conditions are investigated experimentally. 采用三种不同的双光记录方案进行了LiNbO3∶Fe∶Ni晶体全息存储实验,详细研究了饱和衍射效率、固定衍射效率、动态范围和记录灵敏度,以及退火条件对记录的影响。
The recording sensitivity and the saturated diffraction efficiency reached 0.004 cm/ J and 37% respectively under proper pre-sensitization conditions. 通过适当的预敏化,在门光束光强与记录光强分别为20mW/cm2和390mW/cm2时,得到的灵敏度和饱和衍射效率分别为0.004cm/J和37%。
Methods: Recording the stop time and calculating the content of tetracaine hydrochloride in the injection with the instrument sensitivity of 10-7A, 10-8A and 10-9A separately, and comparing the results with that of perchloric acid titration method. 方法:分别选用仪器设定的10-7A,10-8A和10-9A3种灵敏度进行永停滴定,记录到达终点时间和计算样品含量,并与高氯酸滴定法进行比较。
Ideal volume holographic storage material should have high refractive index modulation, low scattering noise, high recording sensitivity and large dynamic range. 理想的体全息存储材料应具有高折效率调制度、低噪声、高记录灵敏度以及较大的动态范围。
The phenomenon has attracted much attention over the past years because of its potential applications in magnetic recording heads and sensors, which are characterized by high sensitivity and quick response, etc. Nowadays, high sensitivity and miniaturization are the trend of development of magnetic sensors. 这种效应具有灵敏度高、响应快等优点,在磁记录和磁传感器上有着广泛的应用前景。当今,磁敏传感器的发展趋势是高灵敏度和小型化。
The pre-illumination processing can also improve the recording sensitivity of the crystal. 同时,预照明处理也大大地增加了晶体的记录灵敏度。
With the reduction in intensity ratio, the saturation and nonvolatile diffraction efficiencies are increased first and then decreased, and the recording sensitivity has been increasing, finally reaches saturation values. 随着光强比的减小,饱和衍射效率和固定衍射效率都先增大后减小,而记录灵敏度一直增大,最终达到饱和值。