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Shanghai Xianben Technology Co., Ltd
Specific operating steps for using the transmittance uniformity measuring instrument
Date: 2025-08-15Read: 0
Transmittance uniformity measuring instrument is a professional equipment used to measure the uniformity of light passing through materials. Widely used in fields such as optics, materials science, solar cells, display technology, etc. By accurately measuring the transmittance of different areas, the uniformity of the sample surface can be evaluated, providing data support for quality control, product optimization, and research and development.
Transmittance uniformity measuring instrumentWorking principle:
1. Light source and detector configuration
Usually equipped with stable light sources and detectors. When the light emitted by the light source passes through the sample, a portion of the light is absorbed or scattered by the sample, while another portion of the light passes through the sample. The light passing through the sample is received by the detector and transmitted to the data processing unit.
2. Multi point measurement
By conducting multi-point transmittance measurements at different positions on the sample surface, transmittance data of different regions can be obtained. These data can be used to calculate the uniformity of the sample's transmittance. The instrument ensures the accuracy of measurement results by precisely controlling the measurement position and angle.
3. Data analysis
After the measurement is completed, all measured transmittance data will be processed and analyzed. Instruments usually calculate the average and standard deviation of transmittance to help users determine whether the transmittance of the sample is uniform.
4. Display and Feedback
The instrument will display the measurement results, and users can view the specific values of transmittance uniformity through the screen. If the uniformity of transmittance exceeds the set standard value, it may be necessary to adjust or optimize the sample.
When using a transmittance uniformity measuring instrument, the following steps need to be followed:
1. Preparation work
Ensure that the measuring instrument is functioning properly and has been calibrated. Check whether the light source and detector are normal, clean the sensors of the measuring instrument, and avoid dirt or dust affecting the measurement results.
2. Sample placement
Place the sample to be tested in the measurement area of the instrument. Ensure that the surface of the sample is flat and avoid any obstructions that interfere with the transmission of light.
3. Set measurement parameters
According to the measurement requirements, set the measurement parameters of the instrument, such as light source type, number of measurement points, measurement time, etc.
4. Start measuring
Start the measurement program, and the instrument will automatically start measuring transmittance at different positions. According to the size and measurement accuracy of the sample, the instrument will sample at multiple points.
5. View results
After the measurement is completed, the instrument will generate a report on the uniformity of transmittance. Users can view the transmittance data of each measurement point and calculate its uniformity.
6. Subsequent operations
If the measurement results do not meet the requirements, the sample can be adjusted or re prepared and measured again.