The online non-contact film thickness analyzer is a device that can monitor the thickness of the film in real time. Its main principle is to use spectroscopy or interferometry to measure the film. It has the characteristics of high precision, effectiveness and high stability. The following will introduce in detail the selection points and precautions of the online non-contact film thickness analyzer.
select points
1. Measuring range: Different types of online non-contact film thickness analyzers have different measuring ranges, so it needs to be selected according to actual needs. North and South Chao reminds you: If you need to measure a wide range of film thickness, it is recommended to choose an instrument with a larger measurement range.
2. Accuracy: The accuracy of the online non-contact film thickness analyzer is an important selection index, usually between 0.01-1 nanometer. For occasions that require high-precision measurement, it is recommended to choose an instrument with higher precision.
3. Repeatability: Repeatability refers to the deviation of multiple measurement results, generally between 0.01-0.2 nanometers. For occasions that require frequent film thickness measurements, it is necessary to choose an instrument with better repeatability.
4. Stability: The stability of the online non-contact film thickness analyzer refers to whether its measurement results are stable. When selecting an instrument, factors such as its long-term stability and temperature stability need to be considered.
5. Response time: Response time refers to the time from the start of measurement to the result of the instrument, generally between a few seconds and a few minutes. It is necessary to select an instrument with a suitable response time according to actual needs.
6. Use environment: The use environment of the online non-contact film thickness analyzer is also an important factor in the selection. For example, when it needs to be used in a high temperature or high humidity environment, it is necessary to choose the corresponding instrument.
Precautions
1. The use of the instrument needs to follow the instructions and maintenance requirements in the operation manual to avoid instrument failure caused by improper use.
2. The instrument needs to be calibrated regularly to ensure the accuracy and stability of the measurement results.
3. During the use of the instrument, care should be taken to prevent interference from external light sources to avoid affecting the measurement results.
4. The instrument needs to be kept clean and dry to avoid the accumulation of dust and dirt, which will affect the measurement results.
5. Safety issues cannot be ignored during use to avoid dangers such as electric shock and fire.
