UJ5a型直流（低）电位差计产品介绍
【中文版】
UJ5a型直流（低）电位差计是一款专为精密电压测量设计的实验室级仪器，适用于科研实验、工业检测及教学演示等场景。本产品采用模块化电路结构设计，通过优化信号传输路径和温漂抑制技术，在毫伏级电压测量中展现出良好的稳定性和重复性精度。
在核心性能方面，UJ5a通过多级分压网络配合高稳定性电阻元件，实现了0.01mV级别的分辨率，可满足微弱电势差的精确测量需求。其线性补偿电路有效降低了环境温度变化对测量结果的影响，确保在15℃-35℃工作温度范围内保持测量一致性。设备内置双重屏蔽结构，有效隔离外部电磁干扰，特别适用于存在复杂电磁环境的工业现场。
产品配置标准化输入输出接口，可便捷连接各类传感器和记录设备。操作面板采用直观的旋钮+刻度盘组合设计，配合高灵敏度检流计，使测量过程具备可视化的调节反馈。针对不同应用场景，设备支持单通道独立测量和双通道对比测量两种工作模式，通过简单的功能切换即可满足多样化需求。
在制造工艺方面，关键部件采用机械强度高、抗氧化性能优异的特种合金材料，配合真空密封技术，显著延长核心元件的使用寿命。整机结构经过抗震优化设计，适合实验室台面或移动检测车等多种场景的稳定使用。
【English Version】
UJ5a DC (Low) Potentiometer Product Introduction
The UJ5a DC (Low) Potentiometer is a laboratory-grade instrument specifically designed for precision voltage measurement, suitable for scientific research, industrial testing, and educational demonstration scenarios. Featuring a modular circuit architecture with optimized signal transmission paths and temperature drift suppression technology, this product demonstrates exceptional stability and repeatability in millivolt-level measurements.
In terms of core performance, the UJ5a achieves 0.01mV resolution through a multi-stage voltage divider network combined with high-stability resistive components, meeting the requirements for precise measurement of weak potential differences. The integrated linear compensation circuitry effectively minimizes the impact of ambient temperature variations on measurement accuracy, ensuring consistent performance within the operational temperature range of 15°C to 35°C. The built-in dual shielding structure provides reliable isolation against electromagnetic interference, particularly advantageous in industrial environments with complex electromagnetic conditions.
Equipped with standardized input/output interfaces, the device allows seamless connectivity with various sensors and recording equipment. The user-friendly control panel combines intuitive rotary knobs with precision dials, working in conjunction with a high-sensitivity galvanometer to deliver visual feedback during measurement adjustments. To accommodate diverse application needs, the instrument supports both single-channel independent measurement and dual-channel comparative measurement modes through simple functional switching.
Regarding manufacturing craftsmanship, critical components utilize special alloy materials characterized by enhanced mechanical strength and oxidation resistance. Combined with vacuum sealing technology, these features significantly extend the service life of core elements. The overall structure incorporates vibration-damping optimization, ensuring reliable operation on laboratory benches or mobile testing platforms.
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