| 1. | Principle and design of a test system for pesticide fluorescence lifetime
农药荧光寿命测试系统的原理与设计 |
| 2. | We demonstrate the feasibility and superiority in the digital phase - locked detection applying in the life - span of the fluorescence quenching in the base of the phase - locked phase theory
锁相理论上论证了数字锁相应用于检测荧光寿命的可行性和优越性。 |
| 3. | Furthermore the optic spectrum data of er / yb co - doped phosphate glass , such as absorption spectrum , fluorescence lifetime and emission spectrum etc . are also tested
此外还对铒镱共掺磷酸盐增益玻璃材料的吸收谱、荧光寿命、激发谱等光谱性能进行了测试。 |
| 4. | Because the fluorescent signal is weak , the lock - in amplifying technology is used to measure the concentration of the gaseous oxygen and the dissolved oxygen
根据荧光信号弱的特点，采用锁相放大技术，通过检测指示剂荧光寿命的变化来实现对气态氧和溶解氧浓度的检测。 |
| 5. | By the former experiment , we know that the fiber optic gas sensor with the pulse light of the blue light led can emit the steady fluorescence . so we can detect the density of oxygen through
技术方案上采用数字脉冲激励led蓝紫光源照射敏感元件获得稳定的荧光信号，再通过测量荧光寿命检测氧气浓度。 |
| 6. | The project detecting the oxygen density by measuring the life - span of the fluorescence quenching has better advantages such as the more sensitive , the better anti - jamming , the more system stabilization , the better dynamic area than by measuring the intensity of the fluorescence quenching
锁相检测荧光寿命的检测方案相对直接测量荧光强度来测定氧气浓度的方法而言，具有灵敏度高、抗干扰性强、系统稳定性能好、动态范围大等优点。 |
| 7. | It measures the density of oxygen by detecting the life - span of the fluorescence quenching . the so - called fluorescence quenching is a kind of physics or chemistry process that the fluorescence material has chemical or physical reactions with certain substance is selected here . it has the advantage of good stability of fluorescence , long life span and the strong quenching effect
本课题光纤氧气传感器检测系统是基于荧光猝灭效应的检测机制，通过测定荧光寿命从而检测氧气浓度的，荧光猝灭效应所引起的荧光寿命具有很好的稳定性、猝灭效果以及系统使用寿命长。 |
| 8. | By introduction of two lif layers , the adjustment of the position of thin layer alq3 in the microcavity is achieved and the effect of the coupling strength between the emissive dipole and vacuum electric - field on the emission intensity in ( / 2 - length microcavity is studied for the first time
在带有dbr结构的高q值微腔中，观察荧光寿命变短辐射速率提高的现象。通过使用填充层，来实现对薄层alq在腔中位置的调节，研究了辐射偶极子同光电磁场的耦合强度对辐射强度的影响。 |
| 9. | The distribution coefficient of re3 + ( nd3 + and yb3 ) ， the refractive index and the crystal lattice were tested . through the measured data of absorption spectrum , fluorescence spectrum and fluorescence lifetime , the spectral characteristic parameters of ( nd3 + , yb3 + ) : yp0 . 1v0 . 9o4 crystals were calculated and contrasted , and the advandages of them have been showed
通过测试各晶体的吸收光谱、荧光光谱和荧光寿命，分析了掺不同浓度nd3 + 、 yb3 +离子激光晶体的光谱特性，对比研究了以yv0 . 9p0 . 1o4作为基质晶体所具有的优越性和缺陷。 |
