【QJ65直流单双臂电桥产品介绍（中文版）】

QJ65直流单双臂电桥是一款专为精密电阻测量设计的智能化检测设备，适用于实验室、工业现场及科研领域对中低值电阻的高精度测量需求。该产品融合传统电桥技术优势与现代化设计理念，可灵活切换单臂和双臂两种测量模式，满足不同场景下的测试要求，为使用者提供可靠的数据支持。

核心优势：

1. 宽量程高精度：支持0.1μΩ至11.11kΩ的宽范围测量，基本精度可达0.05级，有效捕捉微小电阻变化。采用温度补偿技术，确保在不同环境温度下保持稳定的测量性能。
2. 智能便捷操作：配备高清液晶显示屏与人性化操作界面，内置自动量程切换功能，支持数据保持和误差修正功能，显著提升工作效率。机械调零机构采用防磨损设计，延长设备使用寿命。
3. 坚固安全设计：全金属外壳具备良好的电磁屏蔽性能，内部电路采用模块化隔离技术，有效降低干扰。配备过载保护装置，在异常电流状态下自动切断测量回路，保障设备和操作人员安全。
4. 多功能适配：配置标准四端测量接口，兼容多种规格测试线缆。可选配数据记录模块，支持测量数据存储及传输功能，便于后期分析处理。

典型应用：
本产品广泛应用于变压器绕组检测、电机线圈阻值分析、精密分流器校准、材料导电性研究等领域，特别适用于需要对比测量或长周期监测的科研项目。其稳定的输出特性和抗干扰能力，使其在复杂电磁环境中仍能保持优异表现。

结构设计：
采用分层式电路布局和三点式接地系统，有效抑制杂散电流影响。测量旋钮采用精密刻度机构，最小分辨率达0.01%。内置可充电锂电池组，连续工作时间超过40小时，并支持快速充电技术。

【QJ65 DC Single/Double Bridge Product Introduction (English Version)】

The QJ65 DC Single/Double Bridge is an advanced resistance measurement instrument designed for precision electrical testing in laboratories, industrial environments, and scientific research applications. Combining classic bridge measurement principles with modern technological innovations, this device offers both single-arm and double-arm measurement modes, delivering accurate and repeatable results across diverse working conditions.

Key Features:

1. Extended Measurement Range: Covers 0.1μΩ to 11.11kΩ with 0.05-class basic accuracy. Innovative temperature stabilization circuitry minimizes thermal drift effects, ensuring consistent performance within -10°C to +50°C operational temperature range.
2. Intelligent Operation System: Features an ergonomic interface with backlit LCD display and auto-ranging capability. Memory function stores up to 200 measurement records, while the built-in calibration assistant simplifies maintenance procedures.
3. Robust Construction: Heavy-duty aluminum alloy enclosure provides superior EMI shielding. Modular circuit design enhances serviceability, with replaceable protection modules for current terminals. Dual-layer insulation design meets enhanced safety requirements.
4. Enhanced Connectivity: Equipped with gold-plated Kelvin terminals for low-contact resistance. Optional Bluetooth module enables wireless data transmission to PCs or mobile devices, facilitating real-time monitoring and report generation.

Typical Applications:
Ideal for precision resistor manufacturing quality control, power equipment maintenance, educational demonstrations, and material science research. Particularly effective in automotive electronics testing and aerospace component verification where stable measurement under vibration conditions is critical.

Technical Highlights:
• Dual-mode power supply: Operates on 220V AC or built-in 24V DC lithium battery
• Advanced sampling rate: 5 measurements per second in fast mode
• Mechanical components: Stainless steel bearing shafts with dust-proof construction
• Safety compliance: Automatic discharge circuit protects sensitive components

This instrument embodies reliable performance through optimized structural design, including vibration-damping base and moisture-resistant terminal posts. The rotating switch mechanism incorporates precision ball-bearing technology for smooth operation, while the three-stage filter system effectively suppresses power supply noise interference. With its balance indicator featuring 41-segment LED bar graph display, users can achieve precise null detection even in low-light environments.