The article is provided by Jinan Sanquan Zhongshi Experimental Instrument***.
In our daily lives, glass is a common material that is transparent, hard, and resistant to wear and tear. But you know what? Glass is a very complex material, especially when it is subjected to stress or birefringence effects. In order to detect these subtle properties. Today, let's take a look at this amazing instrument - the injection vial optical path difference tester.
First, let's explain what optical path difference is. Optical path difference refers to the difference in path length due to different refractive indices as light travels through a medium. In glass, if subjected to stress, light is deflected as it travels, resulting in optical path differences. And the magnitude of this optical path difference is exactly what we want to measure with the optical path difference tester.
So, how does the optical path difference tester work? This brings us to the principle of polarized light interference. In simple terms, polarized light is light that vibrates in the same direction. When two beams of polarized light meet, they do not interfere if they vibrate in a direction perpendicular to each other; However, if there is an angle in the direction of their vibration, interference will occur due to the phase difference. The optical path difference tester uses this principle to judge the size of the optical path difference by observing the interference phenomenon.
In the optical path difference tester, there is a sensitive color sheet and a 1 4-wave plate. This chip acts like a filter that only allows a specific wavelength of light to pass through. The 1 4 wave plate is capable of rotating the polarization state of the incident light by 90 degrees. By using these two components together, we can judge the magnitude of the optical path difference based on the interference color sequence.
What's even more exciting is that the optical path difference tester can also be used with the CHY-B wall thickness gauge, so that we can more accurately measure the stress values inside the glass. This is not only of great significance for scientists to study the physical properties of glass, but also has invaluable value for quality control and material research and development in industrial production.
In general, the optical path difference tester is an instrument that uses the principle of polarized light interference to detect the stress in the glass. Through it, we can gain an in-depth understanding of the internal structure and properties of glass, providing important data support for research and industrial production.