Novel optical Measurement System for Laser Transmittance and Reflectance of Materials

Release Time:2025-04-30  Hits:

• Date:2025-04-30
• Title of Paper:Novel optical Measurement System for Laser Transmittance and Reflectance of Materials
• Journal:3rd International Multi-Conference on Engineering and Technological Innovation
• Summary:More and more science and industry application require that the transmittance or reflectance characteristics of
  materials be measured conveniently and accurately.Furthermore, as the laser technology is increasingly
  playing a vital role in military and civil fields. The measurement of the optical character of material becomes
  more important. A new measurement system for testing the laser transmittance and reflectance of materials that
  uses a dual-beam relative method is researched. This method largely eliminates the influence of instability of
  light source and thus provides better measurement accuracy. The measuring system built in this paper adopts a high-performance light source and a proper photodetector to improve the whole performance of the system. A preamplifier fitting the principle of low noise design and a frequency selecting filter are used in the detection circuit to inhibit the inner noise. To validate measurement deviation and accuracy of the measurement system, some standard materials were practically tested. The experiment results match the theoretical character very well. The maximum relative error is less than 2％.This system has the advantages of high accuracy, strongnoise immunity and high measurement speed. The cost of this measurement system is low.
• Co-author:Shuhai Jia;Yang Jia;Hong, En
• Translation or Not:No
• Date of Publication:2010-01-01