1、 Technical principles

The low viscosity laser particle counter is mainly based on the principles of photoresist (shading method) and laser scattering method. When the liquid sample passes through the detection channel, the particles inside will block or scatter the laser beam, generating a light signal. These optical signals are captured by highly sensitive photoelectric sensors and converted into electrical signals, which are analyzed for particle size and quantity through a data processing system.

1. Light blocking method (shading method)

The photoresist method determines the size and quantity of particles by measuring the degree of obstruction of the laser by the particles. When particles pass through a laser beam, they block some of the light and create shadows. The change in light intensity detected by the sensor is directly proportional to the size of the particles.

2. Laser scattering method

The law of laser scattering is to analyze the characteristics of particles by measuring the scattered light intensity of particles towards laser. When particles pass through a laser beam, scattered light is generated, and the intensity and angle of the scattered light depend on the size and shape of the particles.

1. High precision: capable of detecting nanoscale particles.

2. Quick detection: Sample detection can be completed in a short period of time.

3. Good repeatability: Ensure consistency of multiple measurement results.

4. Multi channel detection: can simultaneously detect multiple particle size ranges.

3、 Application scenarios

Low viscosity laser particle counters are widely used in the following fields:

1. Semiconductor manufacturing: detecting particle contamination in photoresist to ensure the cleanliness of the photolithography process.

2. Pharmaceutical industry: detecting insoluble particles in injection solutions and ultrapure water.

3. In the field of chemical engineering: detecting particle contamination in chemical reagents and cleaning agents.

4. Electronics industry: detecting particle pollution in the production of electronic products.

4、 User Operation Guide

1. Preparation work

-Cleaning equipment: Ensure that instruments and sampling systems are clean and avoid external contamination.

-Calibration instrument: Use standard particle solution for calibration to ensure measurement accuracy.

2. Sample processing

-Sampling: Use a dedicated sampler to ensure the accuracy and representativeness of the sampling.

-Preprocessing: Filter or dilute the sample as needed to remove interfering factors.

3. Measurement process

-Set parameters: Set appropriate detection parameters based on sample type and detection requirements.

-Start detection: Inject the sample into the detection channel and start the instrument for detection.

-Data recording: Record the detection results, including particle quantity, particle size distribution, etc.

4. Data analysis

-Statistical analysis: Use supporting software to perform statistical analysis on data and generate particle distribution maps.

-Report generation: Generate detection reports based on analysis results for easy archiving and traceability.

5、 Maintenance and upkeep

1. Regular cleaning: Regularly clean instruments and sampling systems to maintain equipment cleanliness.

2. Regular calibration: Regularly use standard particle solutions for calibration to ensure measurement accuracy.

3. Storage conditions: Store the instrument in a dry and clean environment, avoiding dust and moisture.

The low viscosity laser particle counter has become an important detection tool in modern industrial production due to its high precision, fast detection, and good repeatability. By using and maintaining equipment correctly, users can effectively improve production efficiency and ensure product quality.