In fields such as electronic manufacturing, pharmaceutical cleanrooms, and food processing that require high environmental cleanliness, real-time detection of large dust particles is the key to ensuring that the production environment meets standards. The large particle online laser dust particle counter provides continuous and accurate dust particle monitoring support for various industries with stable detection performance and technology design that fits the scene. It is suitable for real-time control of large particles (such as ≥ 5 μ m, ≥ 10 μ m).
1、 Core working mechanism: laser scattering principle and real-time monitoring process
The large particle online laser dust particle counter is based on laser scattering technology to achieve particle detection. Through standardized workflow, it ensures accurate identification and data output of large particles, meeting the real-time requirements of online monitoring.
（1） Detection principle: laser scattering and particle recognition
The device is equipped with a built-in laser emitter to form a stable detection area. Dust particles in the air sample scatter the laser after entering, and larger particles have stronger scattered light intensity and wider pulse width. The photoelectric sensor captures scattered light signals and converts them into electrical signals, which are transmitted to the processing unit; The processing unit uses algorithms to distinguish particles of different sizes based on electrical signals, and counts the number of particles of each size per unit volume.
（2） Real time monitoring process: from sampling to data output
•Air samplingThe built-in sampling pump extracts air samples, and the sampling flow rate can be adjusted as needed to ensure sample representativeness; The inner wall of the sampling pipeline is smooth, reducing particle retention and avoiding affecting detection accuracy.
•Particle detection and signal processingAfter the air sample enters the detection chamber, the laser and particles scatter, and the photoelectric sensor captures the signal in real time and converts it into an electrical signal; The processing unit filters and amplifies electrical signals, removes interference signals, and ensures that effective signals participate in calculations.
•Data output and storageThe processed particle data is displayed in real-time on the screen and can be transmitted to the central control system through an interface for remote monitoring; Built in storage module records historical data, supports export and traceability, and meets compliance record requirements.
2、 Practical technical features: adaptability to scene requirements and stable operation guarantee
The technology design of the large particle online laser dust particle counter revolves around "precise detection", "scene adaptation", and "stable operation", improving practicality and reliability through detail optimization, and adapting to the monitoring needs of large particle sizes in multiple industries.
（1） Optimization of adaptability for large particle size detection
•Particle size recognition accuracy guaranteeIn response to the characteristics of settling and agglomeration of large particle size, an airflow guiding structure is installed in the detection chamber to ensure stable passage of particles through the detection area and reduce misjudgment of particle size; Optimize signal processing algorithms to enhance the recognition ability of scattering signals from large particle sizes, meeting particle size control standards in different industries.
•Adaptation to high concentration environmentsIn scenarios with high particle concentration, the equipment is equipped with an automatic dilution device, which automatically introduces clean air to dilute the sample when the concentration exceeds the limit, avoiding signal overlap and inaccurate counting; The dilution ratio can be automatically adjusted to ensure that the detection data is within the effective range.
（2） Stable operation and convenient operation design
•Long term operational stabilityUsing long-life laser components to reduce the frequency of core component replacement; The sampling pump has low noise and strong stability, avoiding the influence of flow changes on the detection results; The body shell is made of dust-proof and corrosion-resistant materials, suitable for multi scenario monitoring needs, and extends the service life of the equipment.
•Simplified operation and maintenanceEquipped with a touch sensitive operation interface, operators can quickly set detection parameters, and the interface is simple and intuitive; The equipment has a self diagnostic function, which automatically alarms and displays the cause when a fault occurs, making it easy to troubleshoot; Daily maintenance only requires regular replacement of the filter screen and cleaning of the detection chamber, with simple steps and no need for professional personnel.