Prism
Leica-Style 360° Universal Total Station Multi-Faceted Prism
- Omni-directional General Automated Measurement: ±5 mm accuracy. Suitable for setting-out, topographic detail survey and automated inspection; no need to rotate the prism toward the total station.
- Targeted Precision Measurement (Arrow Marked Face): High precision within ±2.0 mm. Designed for control point re-survey, settlement monitoring and high-precision structural deformation observation.
- Manufacturing Accuracy Guarantee: Individual prism grinding tolerance ≤0.1 mm with stress-free cementing. Prism constant drift stays below 0.3 mm across wide temperature from -30℃ to +60℃.
Application Scope
1. Civil Engineering Surveying & Mapping
- Construction Setting-out: Automated layout for buildings, roads, bridges and tunnels; automatic target search by robotic total stations to support single-operator field work.
- Deformation Monitoring: Long-term embedded monitoring for foundation pit settlement, bridge deflection, dam displacement and high-rise building inclination.
- Pipeline Survey: As-built mapping of underground pipelines; works well in narrow manholes without prism reorientation.
2. Industrial & Specialized Measurement
- Guidance survey for shield tunneling machines and dimensional control during large steel structure assembly.
- Vehicle/equipment-mounted mobile automated survey (integrated with robotic arms and inspection trolleys).
- Underground mine drift survey where limited space forbids prism adjustment.
3. Cadastral & Topographic Mapping
Field digital topographic mapping and rapid detail point pickup, drastically cutting down repeated prism alignment workload required by conventional single prisms.
Specifications
Crafted from high-quality K9 optical glass with precision grinding, each single prism achieves a surface angular accuracy of 5 arcseconds and a surface shape tolerance within 0.01mm. The reflective surface adopts copper-based high-reflection infrared coating tailored for 808nm and 1064nm total station laser wavelengths, boasting a reflectivity of over 92%. This professional coating features excellent water resistance and outdoor weather resistance, maintaining stable optical performance in complex field environments.
Equipped with dual-mode ranging accuracy, the prism delivers comprehensive positioning accuracy within ±5mm in 360° omnidirectional blind-free measurement, ideal for conventional automated surveying operations. When aligned with the marked arrow surface, it upgrades to high-precision measurement with an accuracy of ±2.0mm, fully meeting strict standards for control point re-measurement, settlement observation and structural deformation monitoring. It supports an ATR automatic tracking range of up to 600m with Leica robotic total stations and over 1000m for ordinary total stations. Strict manufacturing control ensures no-stress bonding of prism monomers, with constant drift less than 0.3mm in the temperature range of -30℃ to +60℃.
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