Difficulty in measuring coil thickness:

Thickness measurement of rolled materials is a challenging task in industrial production. Coils usually refer to rolls of material, such as sheet metal, plastic film, paper, etc., whose length and width may be large, while the thickness is relatively small. Conventional contact measurement methods such as micrometers or vernier calipers are not only time-consuming, but can also cause damage to the web surface, affecting product quality. In addition, the web may undergo minor deformation due to tension, temperature and other factors during the production process, increasing the difficulty of thickness measurement.

Solution:

Non-contact optical thickness gauges were created to solve the challenges of coil thickness measurement. The POMEAS White Light Interferometer is one of the best. It utilizes the fluctuating nature of light and the principle of interference to accurately calculate coil thickness by measuring the interference fringes of reflected light waves.

Specifically, when white light strikes a web, it is reflected on the upper and lower surfaces of the web, respectively. These two beams of reflected light waves will interfere in space due to the optical range difference, forming specific interference fringes. The distribution and spacing of the interference fringes are directly related to the thickness of the web. By analyzing the variation of the interference fringes, the POMEAS white light interferometer can accurately calculate the thickness of the web.

POMEAS White Light Interferometry Advantage:

1、High precision: white light interference technology can achieve nanometer or even sub-nanometer measurement accuracy, suitable for occasions that require very high precision.

2、Non-contact measurement: to avoid possible damage to the coil in the measurement process, to ensure the accuracy and safety of the measurement.

3、Fast measurement: can realize real-time online measurement, greatly improving production efficiency.

4、Multi-wavelength measurement: because white light contains a variety of wavelengths of light waves, white light interference technology can be measured through multiple wavelengths to more accurately determine the thickness of the coil.

5、Adaptable: can be adapted to different shapes and sizes of the coil for measurement, has a strong flexibility and applicability.

6、Easy to operate: POMEAS white light interferometry usually has an intuitive interface and simple operating procedures, so that users can easily grasp and use.