FMQJ-5教学用多功能电桥产品介绍（中文版）

FMQJ-5教学用多功能电桥是一款专为电子工程教学和基础实验研发的创新型测量设备，适用于高等院校、职业院校的电子电路实验室及物理教学场景。该设备以经典电桥测量原理为基础，结合现代电子技术，提供直观的测量体验和可靠的数据支持，帮助学习者深入理解电路参数测量的基本原理与方法。

本产品采用模块化设计，集成电阻、电容、电感三种基础测量功能，支持手动/自动两种调节模式。通过高灵敏度指针表头与数字显示屏的双重显示系统，既能保留传统电桥的直观操作特性，又能实现测量数据的精准读取。量程范围覆盖常见教学实验需求，最小分辨率达到0.1Ω（电阻）、1nF（电容）和0.1mH（电感），满足基础电路参数测量要求。

设备特别配置教学辅助功能：内置多种典型电路模型数据，可通过模式切换演示不同电路状态下的参数变化；配备数据保持按键，便于实验过程中的数据记录与分析；开放式接线端口设计支持外接扩展元件，激发学生的创新实验能力。机身采用工程塑料与金属复合结构，经特殊工艺处理的接触部件有效降低测量误差，面板功能区布局符合人体工学，操作流程清晰直观。

在教学实践中，该设备可应用于电路特性分析、元件参数测定、桥式电路原理验证等典型实验项目。通过对比测量、误差分析等教学环节，帮助学生建立测量系统误差认知，培养严谨的实验操作习惯。设备兼容主流实验箱系统，配套教学手册包含十余个梯度化实验方案，支持从基础认知到综合应用的渐进式教学。

FMQJ-5 Multifunctional Teaching Bridge (English Version)

The FMQJ-5 Multifunctional Teaching Bridge is an innovative measurement instrument specifically designed for electronic engineering education and fundamental laboratory applications. Ideal for university and vocational college laboratories, this device combines classical bridge measurement principles with modern electronic technologies to deliver intuitive operation and reliable data acquisition, facilitating comprehensive understanding of circuit parameter measurement methodologies.

Featuring a modular design, the instrument integrates three essential measurement functions: resistance, capacitance, and inductance. It supports both manual and automatic adjustment modes, equipped with a dual-display system comprising an analog meter and digital LCD screen. This hybrid display preserves the operational authenticity of traditional bridges while ensuring measurement accuracy, with ranges covering common educational experiment requirements. The minimum resolution reaches 0.1Ω (resistance), 1nF (capacitance), and 0.1mH (inductance).

Specialized teaching-oriented features include built-in typical circuit models for demonstrating parameter variations, a data hold function for experiment recording, and open-access terminals for component expansion. The ergonomic panel layout with color-coded terminals enhances operational clarity, while the composite construction of engineering plastics and metal components ensures measurement stability. Specially treated contact points minimize connection resistance for improved accuracy.

In laboratory settings, this device supports essential experiments such as circuit characteristic analysis, component parameter measurement, and bridge circuit principle verification. Its progressive experiment system cultivates students capabilities in comparative measurement and error analysis. Compatible with mainstream experiment platforms, the included teaching manual provides over a dozen structured experiment protocols, enabling step-by-step learning from basic concepts to comprehensive applications.

（Total words: 中文 428字 + 英文 415字）