存心
发表于 2025-3-26 23:27:24
Raman Scatteringd predicted the Raman effect in 1923 based on theoretical considerations, it was the Indian scientist C.V.Raman who first observed the effect now carrying his name in 1928. Today, after only 60 years, the development of measuring methods and suitable systems based on the Raman effect has resulted in
使痛苦
发表于 2025-3-27 01:49:58
Laser induced Fluorescencerescence imaging was reported in 1982. Despite this short history LIF techniques have been developed into very powerful and the most widely used non-intrusive techniques for measurements in gases. This is mainly due to their high signal strength compared to the main competitors (i.e. Rayleigh and Ra
魅力
发表于 2025-3-27 08:18:41
Absorptionds a radiation detector is being absorbed along its way to the detector and this loss is monitored and analysed for its dependence on wavelength. It is widely used for industrial gas analysis because of its simplicity, low cost and effectiveness. Nevertheless it is still an area of active research.
喊叫
发表于 2025-3-27 10:23:59
Pyrometry and Thermography 1900, the field of pyrometrics had however taken a different course of development. An exact definition of the two measurement methods shall not be made at this point; however, the following caracteristics may serve as a means of destinction. Pyrometry is a method which allows measurements of tempe
使显得不重要
发表于 2025-3-27 14:41:56
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极端的正确性
发表于 2025-3-27 17:49:54
Laser induced Fluorescenceent time and space resolution possible. The principal applications of LIF are the measurement of minority species concentrations and temperatures. In special arrangements of the probe, however, also pressure and velocity distributions have been obtained by fluorescence measurements.
fastness
发表于 2025-3-28 00:01:09
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断言
发表于 2025-3-28 05:26:21
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START
发表于 2025-3-28 09:43:07
Light Scatteringmployed. Schematically this is shown in Fig. 9.1. In most cases beside the light source and the detectors other optical elements such as mirrors, filters, beam splitters etc., are placed in the beam paths to fulfil the requirements of the specific application.
aggressor
发表于 2025-3-28 12:05:07
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