【FM-4R5四端夹具产品介绍（中文版）】
FM-4R5四端夹具是一款专为双臂电桥测量低电阻设计的精密测量辅助工具，致力于为实验室、工业检测及材料研究领域提供高精度、高稳定性的电阻测量解决方案。该产品通过优化四端子接触设计，有效消除传统双端测量中接触电阻与引线电阻对测试结果的影响，可支持毫欧级至数欧姆范围内的电阻测量，适用于金属导体、电子元器件、复合材料等低电阻材料的特性分析。
产品采用分体式结构设计，配备独立电流输入端子与电压测量端子，实现电流激励与电压检测回路的物理隔离，显著提升微弱信号的采集精度。接触端选用高导电耐磨合金材料，配合可调节压力装置，既保障了测量接触的可靠性，又避免因过度压力造成被测物损伤。开放式夹具框架设计兼容片状、线状及异形样品，支持0.1mm至5mm厚度范围内的多样化测量需求。
在操作体验方面，FM-4R5配备防滑绝缘手柄与可视化刻度标识，便于实验人员快速完成样品定位与压力调节。模块化接口设计可灵活适配主流双臂电桥设备，无需额外转换装置即可实现即插即用。产品整体结构经过精密加工与多重稳定性测试，在-20℃至80℃环境温度范围内仍能保持稳定的接触性能，满足严苛实验环境下的长期使用需求。
【FM-4R5 Four-Terminal Fixture Product Introduction (English Version)】
The FM-4R5 Four-Terminal Fixture is a precision measurement accessory specifically engineered for low-resistance testing using double bridge circuits, delivering high-accuracy and stable resistance measurement solutions for laboratories, industrial quality control, and material research. Featuring an optimized four-terminal Kelvin contact design, this fixture effectively eliminates the influence of contact resistance and lead resistance inherent in traditional two-terminal measurements, enabling reliable ohm-to-milliohm level resistance analysis for metallic conductors, electronic components, and composite materials.
With its split-structure configuration, the fixture incorporates isolated current input terminals and voltage sensing terminals, achieving physical separation between current excitation and voltage detection circuits. This design significantly enhances weak signal acquisition accuracy. The contact points utilize high-conductivity wear-resistant alloy coupled with adjustable pressure mechanisms, ensuring consistent electrical contact while preventing sample deformation. The open-frame architecture accommodates various sample geometries including sheets, wires, and irregular shapes, supporting thickness ranges from 0.1mm to 5mm.
Operational efficiency is prioritized through ergonomic non-slip handles and visual pressure indicators, enabling rapid sample positioning and force adjustment. The modular interface design ensures direct compatibility with mainstream double bridge instruments without requiring additional adapters. Precision-machined components undergo rigorous stability validation, maintaining reliable contact performance across environmental temperatures from -20℃ to 80℃, making it suitable for prolonged operation in demanding experimental conditions.
（中英文合计约620字）
