光学经纬仪J2-1-J2-2经纬仪
产品概述
光学经纬仪J2-1和J2-2是两款高精度测角仪器，广泛应用于工程测量、大地测量及工业领域。其设计采用全钢结构，具备防尘防水性能，适合复杂环境下的长时间作业。J2系列仪器配备磁阻尼补偿器，有效避免了传统空气阻尼易卡死的问题，同时通过双保险装置保护补偿器吊丝，提升了仪器的稳定性和耐用性。
English Overview
The J2-1 and J2-2 optical theodolites are high-precision angle-measuring instruments designed for engineering, geodetic, and industrial applications. Featuring an all-steel construction with dustproof and waterproof capabilities, these instruments are built to withstand demanding field conditions. The J2 series incorporates magnetic damping compensators, eliminating issues like cylinder jamming common in air-damped systems, while dual safety mechanisms protect the pendulum wires from damage caused by shocks or vibrations.
技术特点
J2-2型号的一测回水平方向标准偏差为±2″，垂直角测量标准偏差为±6″，望远镜采用正像设计，通光口径φ40mm，放大倍率30倍，最短视距2米。仪器配备自动归零补偿器，补偿精度±0.3″，范围±3′，简化了垂直角测量流程。此外，一体化支架兼容多种红外测距仪，扩展了功能应用场景。
Technical Features
The J2-2 model achieves a horizontal direction standard deviation of ±2″ per set and a vertical angle measurement deviation of ±6″. Its telescope features erect imaging with a 40mm objective aperture and 30x magnification, offering a minimum focusing distance of 2 meters. The automatic vertical index compensator (±0.3″ accuracy, ±3′ range) streamlines vertical angle measurements. The widened支架 supports integration with Leica, Sokkia, and other infrared rangefinders for enhanced versatility.
应用领域
适用于三角及导线测量、隧道施工、地籍测绘、大型机械安装等高精度作业。在桥梁、矿山、水利工程中表现优异，也可用于天文观测等科研领域。
Applications
Ideal for triangulation, traverse surveys, tunnel construction, cadastral mapping, and precision machinery alignment, these theodolites excel in bridge, mining, and hydraulic projects. They also serve astronomical observations and other scientific research.
结构设计
望远镜采用双胶合物镜与对称目镜，成像清晰明亮；竖轴系为半运动式结构，兼具低摩擦和耐磨性；读数系统采用对径符合数字显示，结合移动光楔测微技术，提升数据可靠性。
Structural Design
The telescope combines cemented-objective lenses with symmetrical eyepieces for bright, sharp images. A semi-kinematic竖轴系 reduces friction and wear, while the diametrical coincidence reading system with moving optical wedge micrometers ensures data accuracy.
使用便捷性
支持垂球或光学对点器置中，整平流程简化。补偿器辅助整平功能可将误差控制在±1″~2″内，适合陡峭视线测量。
User-Friendly Features
Centering via plumb bob or optical plummet, along with streamlined leveling procedures, enhances efficiency. The compensator-assisted leveling minimizes errors to ±1″~2″, ideal for steep-angle measurements.
引用来源：12346111723
光学经纬仪J2-1-J2-2经纬仪
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