FMQJ-1 两用非平衡电桥
FMQJ-1两用非平衡电桥产品介绍（中文）
FMQJ-1两用非平衡电桥是一款多功能电桥设备，集平衡电桥与非平衡电桥功能于一体，适用于教学实验、科研测量等领域。该设备采用模块化设计，操作简便，能够满足不同场景下的电阻测量需求。在平衡电桥模式下，测量范围为1Ω至11.11MΩ，调节细度为1Ω，适合高精度电阻测量。非平衡电桥模式下，设备可输出外接测试信号，支持Rx向上或向下变化，适用于动态电阻变化的测量场景。设备内置数字表功能，可实时显示测量数据，便于用户观察和分析。此外，FMQJ-1还具备恒压源和恒流源输出功能，电压范围为0-20V，电流范围为0.3-10mA，能够为实验提供稳定的电源支持。设备结构紧凑，尺寸为262×205×125mm，便于携带和安装。159
Introduction to FMQJ-1 Dual-purpose Unbalanced Bridge (English)
The FMQJ-1 dual-purpose unbalanced bridge is a versatile electrical instrument that combines the functions of both balanced and unbalanced bridges. It is designed for educational experiments and scientific research applications. In balanced bridge mode, it offers a measurement range from 1Ω to 11.11MΩ with a fine adjustment of 1Ω, making it suitable for precise resistance measurements. The unbalanced bridge mode allows for external test signal output and supports both upward and downward resistance changes, ideal for dynamic measurement scenarios. The device features a built-in digital display for real-time data monitoring and analysis. Additionally, it provides stable power supply with adjustable voltage (0-20V) and current (0.3-10mA) outputs. With its compact design (262×205×125mm), the FMQJ-1 is portable and easy to set up in various working environments. The instrument s modular design ensures user-friendly operation for different experimental requirements. 2615
产品特点与优势（中文）
FMQJ-1两用非平衡电桥在设计上注重实用性与功能性。设备采用优质材料制造，确保长期使用的稳定性和可靠性。其独特的非线性矫正电路设计，使得在Rx变化范围内输出线性度表现良好，提高了测量数据的准确性。设备支持三端法和多种敏感臂电路连接方式，能够有效排除引线电阻对测量结果的影响。数字表功能涵盖电压、电流测量及检流计替代等多种用途，量程覆盖20mV至20V，满足不同实验需求。环境适应性方面，设备可在5°C至35°C温度范围内正常工作，适合大多数实验室环境。人性化的面板布局和清晰的物理模型图示，使操作更加直观便捷。31416
Features and Advantages (English)
The FMQJ-1 stands out with its practical design and comprehensive functionality. Manufactured with high-quality materials, it ensures long-term stability and reliability. The innovative nonlinear correction circuit maintains excellent output linearity across Rx variations, enhancing measurement accuracy. It supports three-terminal connection and multiple sensitive arm circuits, effectively eliminating the influence of lead resistance. The multi-functional digital meter can measure voltage, current, and serve as a galvanometer substitute, with ranges from 20mV to 20V to accommodate various experimental requirements. With an operating temperature range of 5°C to 35°C, it adapts well to most laboratory environments. The user-friendly panel layout and clear physical model diagram provide intuitive operation for users. 41018
应用场景说明（中文）
FMQJ-1两用非平衡电桥广泛应用于高等院校物理实验教学，特别适用于电阻测量、传感器特性研究等相关课程实验。在科研领域，该设备可用于材料电阻率测试、温度传感器标定等工作。工业现场中，它能够协助技术人员进行电路调试和元件检测。设备兼容多种测量方法，包括二端法、三端法和四端法，可根据实际需求灵活选择。教学方面，其开放式设计便于学生理解电桥工作原理，培养实践能力。设备还可与热敏电阻等传感器配合使用，开展温度测量等拓展实验，丰富教学内容。51317
Application Scenarios (English)
The FMQJ-1 finds wide applications in university physics laboratory courses, particularly for experiments involving resistance measurement and sensor characteristic studies. In scientific research, it serves well for material resistivity testing and temperature sensor calibration. Industrial technicians can utilize it for circuit debugging and component testing. The instrument supports multiple measurement methods including two-terminal, three-terminal and four-terminal approaches, offering flexibility for various requirements. Its open design facilitates students understanding of bridge working principles and enhances practical skills development. When combined with sensors like thermistors, it enables extended experiments such as temperature measurement, thereby enriching teaching content. 61219
FMQJ-1 两用非平衡电桥
的详细介绍
传感器是现代信息采集技术的核心，它由敏感元件和变送电路组成，非平衡电桥就是常见的重要变送电路之一。FMQJ-3型非平衡电桥可与敏感元件组成单臂桥、半桥、全桥，各桥臂均有0～100K欧姆可调旋钮用来调定随心所欲地设定线性区间和桥臂电流，另有一只平衡微调旋钮用来调定数字检流计的零点；非平衡信号由检流计读出或由开关一接线柱输出机外。本品还可接成惠氏单桥或开氏双桥进行相关的研究和测量，一桥多用，作为高教仪器物超所值；面板电路图给出了清晰直观的物理模型。
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| 联接方式 |
测量范围 |
准确度 |
尺度cm2 |
| 单桥 |
1欧姆～1111Ω |
±0.2% |
45*31*14 |
| 双桥 |
10-6～1111Ω |
1% |
重量kg |
| 非平衡桥 |
1欧姆～11KΩ |
1% |
7 |
|
