ACCRETECH DM45514 Stylus Profilometer
| Brand | ACCRETECH |
|---|---|
| Origin | Japan |
| Model | DM45514 |
| Type | Contact Stylus Surface Profilometer |
| Compliance | ISO 4287, ISO 4288, ISO 25178-2, JIS B 0601, ASME B46.1 |
| Probe Type | Diamond-tipped stylus (2 µm radius standard) |
| Vertical Resolution | Sub-nanometer (typical < 0.1 nm) |
| Scan Length | Up to 100 mm (configurable) |
| Measurement Speed | 0.01–5 mm/s (adjustable) |
Overview
The ACCRETECH DM45514 Stylus Profilometer is a high-precision contact surface metrology instrument engineered for quantitative characterization of surface topography, form, and waviness in industrial quality control and R&D environments. Based on the established principle of mechanical stylus tracing—where a diamond-tipped probe physically traverses the sample surface while a high-sensitivity linear variable differential transformer (LVDT) or capacitive sensor records vertical displacement—the DM45514 delivers traceable, repeatable profile data compliant with international surface texture standards. Designed and manufactured in Japan, the system integrates rigid granite base construction, air-bearing motion stages, and thermally stable kinematic mounts to minimize environmental drift and mechanical hysteresis. Its architecture supports both single-trace line profiling and multi-trace grid-based areal analysis when coupled with optional X-Y scanning stages, enabling full compliance with ISO 25178-2 for areal surface texture parameters (Sa, Sq, Sz, etc.) alongside traditional 2D roughness metrics (Ra, Rz, Rq, Rsk, Rku).
Key Features
- High-stability granite base with integrated vibration isolation and thermal mass management for sub-micron measurement repeatability
- Adjustable stylus force (0.5–5 mN range) with automatic load compensation to prevent surface deformation on soft or coated materials
- Dual-range vertical sensing: high-resolution mode (≤0.1 nm resolution) for fine roughness analysis; extended-range mode (up to ±1 mm vertical travel) for form and waviness assessment
- Motorized Z-axis lift with programmable approach/retract logic to protect stylus and sample during automated measurement sequences
- Modular stage configuration supporting manual, motorized linear, or fully programmable XYθ stages for complex contour mapping and multi-location batch inspection
- Real-time analog signal conditioning with anti-aliasing filtering and 24-bit ADC acquisition for low-noise profile digitization at up to 20 kHz sampling rate
Sample Compatibility & Compliance
The DM45514 accommodates a broad spectrum of solid, non-porous engineering materials—including hardened steels, aluminum alloys, ceramics, silicon wafers, precision-machined optics, and polymer coatings—provided surface hardness exceeds ~200 HV and features no overhanging geometry exceeding stylus tip clearance. Sample height tolerance extends from 0 mm (flush mounting) to 300 mm (with optional tall-column configuration), and maximum weight capacity is 25 kg on standard stage variants. All measurement algorithms and reporting outputs adhere strictly to ISO 4287 (profile parameters), ISO 4288 (lay and assessment length rules), ISO 25178-2 (areal parameters), JIS B 0601 (Japanese surface texture standard), and ASME B46.1 (U.S. surface characterization guidelines). Calibration is performed using NIST-traceable step-height and roughness reference standards, with documented uncertainty budgets available per ISO/IEC 17025 requirements.
Software & Data Management
The system operates with ACCRETECH’s proprietary SURFPAK-V software suite, which provides full GLP/GMP-compliant data handling including electronic signatures, audit trails, user access levels (admin/operator/observer), and FDA 21 CFR Part 11–ready configuration options. SURFPAK-V supports automated report generation in PDF, CSV, and XML formats, with customizable templates aligned to internal QA protocols or customer-specific deliverables. Raw profile data is stored in vendor-neutral ASCII format for third-party analysis interoperability. The software includes advanced filtering (Gaussian, S-filter, λc), segmentation tools for feature-specific evaluation (e.g., groove depth, peak count), and statistical process control (SPC) charting with Cp/Cpk calculation. Optional modules enable GD&T overlay, cross-section comparison against CAD nominal, and integration with MES/QMS platforms via OPC UA or RESTful API interfaces.
Applications
The DM45514 serves critical roles across precision manufacturing sectors: evaluating surface finish consistency on engine cylinder bores and bearing races; validating micro-machined fluidic channel dimensions in medical device components; quantifying wear scar morphology in tribological testing; assessing polishing uniformity on semiconductor wafer bevels; verifying coating thickness and edge roll-off on optical thin-film substrates; and certifying form error (e.g., roundness, flatness, straightness) on precision-ground gauge blocks and calibration artifacts. Its robust design and metrological traceability make it suitable for accredited calibration laboratories performing ISO/IEC 17025 scope expansions in surface texture metrology.
FAQ
What stylus tip radius options are available for the DM45514?
Standard configuration uses a 2 µm radius diamond stylus; optional tips include 5 µm, 12.5 µm, and 50 µm radii for specific applications involving deep grooves or fragile surfaces.
Can the DM45514 measure soft polymers or elastomers without deformation?
Yes—through precise stylus force control down to 0.5 mN and real-time feedback compensation, enabling reliable profiling of materials such as silicone gaskets, polyurethane seals, and hydrogel films.
Is thermal drift compensated during long-duration scans?
The system incorporates dual-point temperature monitoring and embedded thermal expansion correction algorithms calibrated against material-specific coefficients, ensuring dimensional stability over 8-hour continuous operation.
Does the instrument support automated batch measurement routines?
Absolutely—SURFPAK-V allows full script-based automation including part loading/unloading coordination (via PLC interface), multi-site measurement sequencing, pass/fail decision logic, and auto-generated certificate-of-conformance reports.
How is traceability maintained for calibration and verification?
Each unit ships with a factory calibration certificate referencing NIST-traceable step-height and roughness standards; annual verification kits and certified reference artifacts are available through ACCRETECH-authorized service centers globally.
