J2-2光学经纬仪
J2-2光学经纬仪产品介绍（中文）
J2-2光学经纬仪是一种精密光学测角仪器，适用于工程测量、工业及大地测量等领域。该仪器采用正像望远镜设计，视场明亮清晰，成像质量优异。望远镜放大倍率为30倍，物镜通光口径为40mm，最短视距为2米，乘常数为100。仪器配备数字化读数系统，测量数据读取迅速可靠。垂直度盘采用自动归零补偿器设计，使垂直角度测量更加简便精确。J2-2光学经纬仪采用加高加宽的一体化支架设计，可适配多种红外测距仪使用。仪器一测回水平方向标准偏差为±2″，垂直角测量标准偏差为±6″，能满足高精度测量需求。该仪器广泛应用于三角及导线测量、精密工程测量、隧道及矿山施工测量、地籍测量、变形测量等领域，也可用于大型机械安装和计量工作。仪器净重6kg，采用三爪基座设计，便于野外作业使用。1236
J2-2 Optical Theodolite Product Introduction (English)
The J2-2 optical theodolite is a precision optical angle-measuring instrument suitable for engineering surveys, industrial measurements and geodetic surveys. It features an erect-image telescope with bright and clear field of view, providing excellent imaging quality. The telescope offers 30x magnification with a 40mm objective lens aperture, minimum sighting distance of 2 meters and multiplication constant of 100. Equipped with a digital reading system, the instrument ensures quick and reliable measurement data acquisition. The vertical circle incorporates an automatic index compensator, making vertical angle measurements more convenient and accurate. The J2-2 adopts an elevated and widened integrated bracket design that is compatible with various infrared distance meters. With horizontal direction standard deviation of ±2″ per set and vertical angle measurement standard deviation of ±6″, it meets high-precision measurement requirements. This instrument is widely used in triangulation and traverse surveys, precision engineering measurements, tunnel and mine construction surveys, cadastral surveys, deformation monitoring, and can also be applied in large machinery installation and metrology work. The instrument weighs 6kg net and features a three-screw base design for convenient field operation. 12421
产品特点与技术优势
J2-2光学经纬仪采用半运动轴系设计，具有摩擦力矩小、耐磨性好的特点，轴系中的钢珠和轴套锥面具有自动归心作用，温度变化对仪器影响较小。读数系统采用对径符合数字读数方式，使用透射式度盘和1:1透镜转像系统，配合移动光楔测微器实现精确测量。望远镜镜筒上下均装有光学粗瞄准器，便于正倒镜观测时进行粗瞄。仪器内置反光板，可在夜间观测时照明分划板。分划板附有保护玻璃，可清除污点而不损伤十字丝。仪器采用悬摆式补偿器，能有效消除仪器整平后的残余误差对竖盘读数的影响，补偿精度达±0.3″，补偿范围为±3′。71317
Product Features and Technical Advantages
The J2-2 optical theodolite employs a semi-kinematic axis system design with low friction torque and excellent wear resistance. The steel balls and conical surfaces in the axis system provide automatic centering function with minimal temperature influence. The reading system adopts diametrical coincidence digital reading method, utilizing transmitted circle and 1:1 lens imaging system combined with movable optical wedge micrometer for precise measurements. Both upper and lower sides of telescope barrel are equipped with optical rough sights for coarse aiming during direct and reversed position observations. The built-in reflector plate enables reticle illumination for night observations. The protected reticle with cover glass allows cleaning without damaging crosshairs. The pendulum-type compensator effectively eliminates the influence of leveling residual errors on vertical circle readings, achieving compensation accuracy of ±0.3″ within ±3′ compensation range. 71218
J2-2光学经纬仪
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