The power meter can be used to determine the power of green laser pointer

The first article normally means the certain samples of green laser pointer
Typically, you can have reason to believe that the LII measurement is the volume fraction of the carbonaceous matter in the exhaust. Metal ashes will be at a lower concentration, but because of the laser absorption rate and the emissivity of incandescent light signal and carbon should be small compared, and difficult in the case of high temperature, so that they almost does not affect the signal of the incandescent lamp. LII technology in real-time measurement of the transient process of the engine is running. This feature makes it an excellent tool for optimization engine soot particle emission characteristics. The measurement frequency is only limited by high power pulsed laser repetition rate (typically 10-30 Hz, equivalent to -3600 rev / min 1200 rpm, each engine cycle measurements). The power meter can be used to determine the power of green laser pointer .
Accordingly, the overall average can be used more than one engine cycle measurement method to reconstruct the engine cycle to distinguish the transient characteristics. Four-wave mixing technology of the merger. A merger of four-wave mixing (Degenerate four-wave mixing, DFWM) technology to analyze the concentration of certain substances in the jet engine gas. Test equipment, test signal is weak can get better results without the need for additional technical assistance. Beam (two-beam-pumped light beam to detect light) exposure to the substances to be detected after the formation of a bundle of new signal light, the light intensity signal contains some concentration of the substance to be detected. Spatial resolution in the technology and the size of the beam cross-zone. The related personnel can master how to determine the power of green laser pointer very quickly.
Therefore, this technology has excellent spatial resolution capabilities; use of ultrashort laser pulses, and therefore has a very good time resolution capability (about 30 ns). Planar laser induced fluorescence technique. Planar laser induced fluorescence (Planner Laser-Induced 11uoreseenee, PLIF) technology with superior time and spatial resolution two-dimensional image of the flow field, and can get different quantum states of different molecules of substances can be detected, so the adoption of the technology can simultaneously measure multiple parameters of the flow field, such as the concentration of a substance in the flow field, temperature, pressure and flow rate, etc.; these features is its excellent time and spatial resolution together. The customer wants to ensure they will not cheated by the false power of green laser pointer .