FMQJ57直流电阻电桥
FMQJ57直流电阻电桥产品介绍（中文）
FMQJ57直流电阻电桥是一款采用凯尔文双桥原理设计的精密测量仪器，适用于工矿企业、实验室及现场环境下的低值直流电阻测量。该产品内置电子检流计与工作电源，无需额外附件即可完成高精度测量，操作便捷。其测量范围覆盖0.01μΩ至111.11MΩ，分辨力达0.01μΩ，满足金属导体电阻率、电机绕组电阻、开关接触电阻等多样化测量需求。电桥采用低温度系数合金电阻元件，经过严格工艺处理，确保测量稳定性和准确性。仪器配备机械与电气双重调零功能，支持灵敏度调节，并可通过外接电源或指零仪扩展使用场景。环保设计支持交直流供电模式，减少电池更换频率。外形尺寸为300×250×160mm，重量约6kg，便于携带。
FMQJ57特别适用于电线电缆、变压器绕组等行业的电阻测量，其四端钮接线法有效消除导线电阻干扰。内置放大式指零仪提供清晰的平衡指示，而多档倍率选择（如×10⁻³至×10³）进一步优化测量精度。产品设计注重用户体验，如阻尼时间≤4秒、指针抗干扰设计等，适合复杂环境下的长时间连续工作。257
FMQJ57 DC Resistance Bridge (English)
The FMQJ57 DC Resistance Bridge is a precision instrument based on the Kelvin double bridge principle, designed for low-value DC resistance measurements in laboratories, industrial sites, and field environments. With a built-in electronic galvanometer and power supply, it enables standalone operation without additional accessories. Its measurement range spans 0.01μΩ to 111.11MΩ, achieving a resolution of 0.01μΩ, ideal for applications such as conductor resistivity testing, motor winding resistance, and switch contact resistance analysis.
Featuring alloy resistance components with low temperature coefficients and refined manufacturing processes, the FMQJ57 ensures consistent accuracy. The device includes mechanical and electrical zero-adjustment functions, adjustable sensitivity, and supports external power or galvanometer connections for extended use. Its eco-friendly design accommodates both AC/DC power modes, reducing battery dependency. Compact dimensions (300×250×160mm) and lightweight (6kg) enhance portability.
Tailored for industries like cable manufacturing and transformer production, the FMQJ57 employs a four-terminal connection method to minimize lead resistance interference. The amplified null detector provides clear balance indication, while multiple ratio settings (e.g., ×10⁻³ to ×10³) optimize precision. User-centric features include ≤4s damping time and anti-interference pointer design, suitable for prolonged operation in challenging conditions. 5928
FMQJ57直流电阻电桥
的详细介绍
FMQJ57直流电阻电桥
技术参数:
测量或调整范围:0.01～111.11MΩ
精度：0.05
仪器特点:内附电子检流计(环保型)
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