科力达经纬仪/电子经纬仪DT-02CL/DT-02LL经纬仪
科力达经纬仪/电子经纬仪 DT-02CL/DT-02LL 产品介绍
中文介绍
科力达 DT-02CL 和 DT-02LL 电子经纬仪是两款高性能的测量仪器，广泛应用于建筑工程、地形测绘、道路桥梁建设等领域。它们均采用绝对编码式测角方式，测角精度高达 2 秒，能够确保测量数据的高精度和可靠性。水平盘和垂直盘采用对径读数，进一步保障了 2 秒级的测角精度。
两款仪器都配备了高精度的电子补偿器，采用液体电容式系统，工作范围为 ±3′，分辨率达到 1″，能够有效补偿竖轴倾斜，保证读数准确无误。此外，它们还带有激光对中器，对中精度为 ±1.5mm（在 1.5m 处），波长范围为 630nm~670nm，激光等级为 ClassII。
在望远镜方面，两款仪器的成像均为正像，放大倍率为 30×，有效孔径为 45mm，分辨率高达 3″，视场角为 1°30′，最短视距为 1.2m。此外，它们的视距常乘数为 100，视距加常数为 0，视距精度为 ≤0.40%L。
DT-02LL 电子经纬仪还具备激光指向功能，其激光轴与视准轴的不共轴误差控制在 ≤10″，最大距离可达 150m（白天遮阳）。两款仪器的显示器均为 LCD 双行线段式，数据输入输出接口为 RS-232C。
机载电池采用可充电镍氢电池，电压为直流 4.8V，连续工作时间可达 8 小时。仪器的外形尺寸为 160×150×330mm，重量为 5.2kg，使用环境温度范围为 -20℃～+50℃。
English Introduction
The Kolida DT-02CL and DT-02LL electronic theodolites are high-performance measuring instruments widely used in architectural engineering, topographic surveying, road and bridge construction, and other fields. Both models employ an absolute encoding angle measurement method with an accuracy of up to 2 seconds, ensuring high-precision and reliable measurement data. The horizontal and vertical disks use a diametrical reading method, further ensuring a 2-second level of angle measurement accuracy.
Both instruments are equipped with high-precision electronic compensators. The liquid capacitive system has a working range of ±3′ and a resolution of 1″, which can effectively compensate for vertical axis tilt and ensure accurate readings. In addition, they are equipped with a laser centering device with a centering accuracy of ±1.5mm (at 1.5m), a wavelength range of 630nm~670nm, and a laser class of ClassII.
In terms of the telescope, both models have a positive image, a magnification of 30×, an effective aperture of 45mm, a resolution of up to 3″, a field of view of 1°30′, and a minimum viewing distance of 1.2m. In addition, the stadia constant is 100, the stadia additive constant is 0, and the stadia accuracy is ≤0.40%L.
The DT-02LL electronic theodolite also has a laser pointing function, with the non-coaxial error between the laser axis and the line of sight controlled at ≤10″ and a maximum distance of up to 150m (daytime shading). The display of both models is an LCD double-row line segment type, and the data input and output interface is RS-232C.
The onboard battery uses a rechargeable nickel-hydrogen battery, with a voltage of 4.8V DC and a continuous working time of up to 8 hours. The instrument s outer dimensions are 160×150×330mm, the weight is 5.2kg, and the operating temperature range is -20℃～+50℃.
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