YANRUN YRUH3000P Dual-Axis Photoelectric Autocollimator (0.2 arcsec)

Overview

The YANRUN YRUH3000P Dual-Axis Photoelectric Autocollimator is an advanced optical metrology instrument engineered for high-precision angular measurement based on the fundamental principle of optical autocollimation. It employs a collimated beam generated by a 360 mm focal length objective lens, directed onto a plane mirror placed perpendicular to the optical axis. The reflected beam returns through the same objective and is reimaged onto a high-resolution photodiode array detector located at the shared focal plane—forming a co-focal optical architecture. When the mirror rotates by angle α, the image displacement ΔS on the sensor corresponds to 2α, enabling sub-arcsecond angular quantification via calibrated pixel-to-angle mapping. Designed for metrological-grade applications, the YRUH3000P delivers ≤ ±0.2 arcsec accuracy within ±60″ range and maintains 0.05 arcsec repeatability under controlled environmental conditions. Its compact form factor (450 × 155 × 125 mm, 4.3 kg), integrated semiconductor LED illumination (rated lifetime >20,000 hours), and real-time electronic imaging eliminate human parallax error inherent in traditional visual autocollimators.

Key Features

• Dual-axis simultaneous measurement of X- and Y-direction angular deviations, supporting dynamic alignment and multi-degree-of-freedom analysis.
• Real-time electronic eyepiece with live centroid tracking and auto-curve fitting algorithms for instantaneous error evaluation and statistical reporting.
• Adjustable angular resolution from 1.0 to 0.01 arcsec, configurable per application requirements without hardware modification.
• Optimized optical design featuring 38 mm aperture and diffraction-limited performance over a 1400″ × 1200″ field of view (FOV), ensuring robust signal capture across extended measurement distances up to 15 meters.
• USB 2.0 interface with deterministic 9 Hz sampling frequency, compatible with standard industrial PCs running Windows 7+ (64-bit), meeting minimum specifications of Intel Core i3-4th generation or equivalent.
• Modular software architecture supporting optional add-on modules for straightness, flatness, perpendicularity, parallelism, and rotary table calibration—each compliant with ISO 230-1, ISO 230-2, and GB/T 17421-1 standards.
• Multi-language UI (English, Chinese, Russian, Korean) and native Excel export functionality for audit-ready documentation aligned with GLP and GMP data integrity expectations.

Sample Compatibility & Compliance

The YRUH3000P is designed for use with standard optical flat mirrors (included), magnetic bases, kinematic mounts, and precision prisms (e.g., 2″–30″ optical right-angle prisms, multi-faceted polygons). It supports both static and quasi-dynamic measurements in environments with ambient temperature stability of ±0.5 °C over measurement duration. Calibration traceability follows JJG 925–2019 (Chinese National Metrological Verification Regulation for Autocollimators) and aligns with international practices referenced in ISO/IEC 17025:2017. While not FDA-certified as a medical device, its data logging structure—including timestamped raw sensor outputs, user-defined metadata fields, and version-controlled configuration files—supports 21 CFR Part 11-compliant implementation when deployed within validated laboratory information management systems (LIMS).

Software & Data Management

The bundled YANRUN Autocollimation Control Suite operates natively on Windows platforms and provides full control of acquisition parameters, real-time image display, coordinate transformation, and automated report generation. All measurement sessions are stored in a structured binary format (.yac) with embedded calibration coefficients and environmental metadata. Export options include CSV for third-party statistical analysis and native .xlsx reports conforming to ISO 5725-based uncertainty reporting templates. Audit trail functionality records operator ID, session start/end timestamps, software version, and any parameter modifications—enabling retrospective verification in regulated quality assurance workflows. Optional modules undergo internal verification per ISO/IEC 17025 Annex A.2 and support configurable pass/fail thresholds with graphical tolerance band overlays.

Applications

• Precision alignment of CNC machine tool guideways, spindle axes, and linear motion stages per ISO 230-1 geometric accuracy testing protocols.
• Flatness and straightness verification of granite surface plates, optical benches, and semiconductor wafer handling platforms using bridge-type or reversal methods.
• Calibration of high-accuracy rotary tables, indexing heads, and goniometers via multi-position autocollimation (e.g., polygon-based self-calibration).
• Assembly and adjustment of laser cavities, interferometer arms, and astronomical telescope optical trains requiring sub-arcsecond pointing stability.
• Verification of angular repeatability in aerospace actuator mechanisms and inertial navigation system gimbal assemblies.
• Research-grade angular metrology in university physics and optical engineering laboratories, including Michelson-Morley-type null experiments and gravitational wave detector prototype alignment.

FAQ

What is the recommended warm-up time before high-accuracy measurements?
For metrological-grade results (e.g., calibration against national standards), power-on stabilization for ≥15 minutes is required. Full thermal equilibrium for formal verification requires ≥24 hours of temperature-controlled storage at 20 ±0.5 °C.
Does the system support remote operation via Ethernet or Wi-Fi?
The base configuration uses USB 2.0 only. Wireless acquisition is available via optional touchscreen wireless collector module (sold separately), which interfaces via 2.4 GHz ISM band with encrypted telemetry.
Can the YRUH3000P measure angular motion at frequencies above 9 Hz?
The native sampling rate is fixed at 9 Hz (typ.). Higher-frequency dynamic analysis requires external synchronization with high-speed cameras or dedicated DAQ systems; the instrument itself does not support oversampling or burst-mode acquisition.
Is NIST-traceable calibration documentation provided with shipment?
Each unit ships with a factory calibration certificate referencing internal reference standards verified annually against national primary standards. NIST-traceable calibration services are available upon request with additional lead time and documentation fees.
How is thermal drift compensated during extended measurements?
The system does not include active thermal compensation. Users must maintain ambient temperature stability within ±0.5 °C over measurement duration; coefficient of thermal expansion effects on mechanical mounts and mirror substrates must be accounted for in uncertainty budgets per GUM (JCGM 100:2008).