Microtrac MRB CAMSIZER 3D Dynamic Image-Based 3D Particle Size and Shape Analyzer

Overview

The Microtrac MRB CAMSIZER 3D is a high-performance, dynamic image-based particle characterization system engineered for precise, reproducible 3D size and shape analysis of dry, free-flowing particulate materials. Unlike conventional 2D image analyzers that capture single static projections per particle, the CAMSIZER 3D employs patented 3D particle tracking technology: as particles descend freely through the measurement zone under gravity, synchronized LED stroboscopic illumination and dual high-speed cameras record up to 250 frames per second. The software reconstructs individual particle trajectories—capturing up to 30 distinct orientations—and computes true 3D dimensions: length (maximum projection length across all views), width (maximum orthogonal projection), and thickness (minimum orthogonal projection). This eliminates orientation bias inherent in 2D methods and enables statistically robust, dimensionally resolved distributions for irregular, anisotropic, or elongated particles—including extrudates, crystals, agglomerates, and natural granules. The system operates on the principle of real-time optical silhouette imaging combined with deterministic trajectory modeling, delivering metrologically traceable results aligned with ISO 9276-6 for shape descriptor definitions and ASTM E2457 for dynamic image analysis validation.

Key Features

• Dual-camera architecture: 9 MP ZOOM camera for high-resolution fine-particle analysis (20–500 µm) and 5 MP BASIC camera for robust coarse-particle detection (500 µm–30 mm), integrated via proprietary fusion algorithm enabling seamless coverage across >3 orders of magnitude without hardware reconfiguration.
• True 3D particle tracking: Each particle is imaged in multiple orientations during free-fall; trajectory reconstruction yields independent length, width, and thickness distributions—critical for distinguishing rod-like, platy, or spherical morphologies.
• High-speed acquisition: Real-time processing at up to 250 fps ensures sufficient frame density for reliable 3D trajectory reconstruction, even for fast-moving or low-density particles.
• No-contact, non-destructive measurement: Fully automated, vibration-isolated transport via precision vibratory feed chute and calibrated dosing funnel; no sieving, dispersion, or sample preparation required.
• Integrated calibration system: Certified NIST-traceable glass calibration slide with photolithographically defined circles enables rapid (<30 s), operator-independent pixel-to-micron scaling verification; full calibration report exportable in PDF format.
• Industrial-grade enclosure: IP54-rated dust-resistant housing with internal vacuum-assisted chamber cleaning system ensures operational stability in production environments and protects optics from contamination.

Sample Compatibility & Compliance

The CAMSIZER 3D accommodates a broad spectrum of dry, granular, and free-flowing materials—including pharmaceutical granules, catalysts, fertilizers, sand, polymer beads, coffee grounds, rice, EPS foam, rubber crumb, and ceramic powders—without requiring fluid dispersion or vacuum drying. Its mechanical design supports bulk densities from 0.1 to 2.5 g/cm³ and flow rates adjustable between 0.5–10 g/s. All shape descriptors—including sphericity, convexity, aspect ratio, symmetry, and circularity—are calculated per ISO 9276-6 and reported with statistical uncertainty estimates. The system satisfies analytical method validation requirements per ICH Q2(R2) and supports regulatory compliance workflows: optional Audit Trail Manager software provides electronic signatures, role-based user access control, immutable encrypted audit logs, and full adherence to FDA 21 CFR Part 11 for pharmaceutical, biotech, and medical device QA/QC laboratories. Routine operation meets GLP and GMP documentation standards, including instrument qualification (IQ/OQ/PQ) templates and raw data archiving protocols.

Software & Data Management

CAMSIZER 3D software (v8.x) delivers comprehensive data acquisition, visualization, and reporting capabilities. It features real-time histogram overlays for simultaneous comparison of length/width/thickness distributions; customizable filtering for isolating subpopulations (e.g., highly elongated or fragmented particles); and built-in sieve simulation algorithms that convert measured equivalent diameters into standardized sieve-cut equivalents—enabling direct correlation with legacy sieve data per ASTM E11 and ISO 3310-1. All raw image sequences, trajectory metadata, and intermediate calculations are stored in a structured SQLite database with configurable retention policies. Export options include CSV, Excel, PDF reports (with embedded calibration certificates), and XML for LIMS integration. Optional modules include Batch Manager for multi-sample queueing, Statistical Process Control (SPC) dashboards with Cp/Cpk calculation, and API-enabled remote control via HTTP/REST for factory automation interfaces.

Applications

The CAMSIZER 3D serves critical quality control and R&D functions across industries where particle morphology directly impacts performance: in pharmaceuticals, it verifies granule uniformity and detects agglomeration or attrition post-blending; in catalyst manufacturing, it quantifies extrudate aspect ratio and surface roughness to predict pressure drop and activity; in construction materials, it correlates sand angularity with concrete workability and compressive strength; in food processing, it monitors rice kernel breakage or sugar crystal habit changes during milling and drying; and in battery material production, it characterizes cathode/anode powder sphericity and tap density predictors. Its ability to resolve 3D dimensions independently makes it indispensable for validating additive manufacturing feedstocks, optimizing spray-dried excipients, and troubleshooting fluidized bed granulation endpoints.

FAQ

How does CAMSIZER 3D differ fundamentally from traditional 2D image analyzers?
Unlike 2D systems that treat each particle image as an isolated event, CAMSIZER 3D reconstructs continuous 3D trajectories—enabling unambiguous assignment of length, width, and thickness per particle, eliminating projection bias.
Is sieve analysis replacement validated for regulatory submissions?
Yes—its sieve simulation algorithm is benchmarked against certified reference standards and accepted by multiple global regulatory agencies for QC release testing when accompanied by method validation documentation.
Can the system handle cohesive or slightly damp powders?
It is optimized for free-flowing dry materials; for marginally cohesive samples, optional anti-static ionizer bars and modified feed chutes are available to minimize bridging.
What maintenance is required for long-term operational reliability?
The LED stroboscopic light source is solid-state and rated for >50,000 hours; cameras and optics require no periodic recalibration; only routine chamber cleaning and annual preventive maintenance (PM) kit replacement are recommended.
Is remote diagnostics and software update support available?
Yes—Microtrac MRB provides secure remote access for troubleshooting, firmware updates, and application consulting via encrypted VNC session with customer consent and IT policy alignment.