【中文介紹】
FMQJ23b直流三端電阻橋是一款專為精密電阻測量設(shè)計的實驗室級檢測設(shè)備，采用三端式結(jié)構(gòu)設(shè)計有效降低接觸電阻和導線電阻對測量結(jié)果的影響。該設(shè)備內(nèi)置高穩(wěn)定度恒流源模塊與數(shù)字化處理單元，可在0.1mΩ-10kΩ范圍內(nèi)實現(xiàn)±0.02%的基礎(chǔ)測量精度，特別適用于半導體材料、精密傳感器、電力電子元件等領(lǐng)域的阻值分析需求。
本產(chǎn)品通過獨特的溫度補償系統(tǒng)，在15℃-35℃環(huán)境溫度范圍內(nèi)保持測量穩(wěn)定性，溫度漂移系數(shù)小于5ppm/℃，確保長時間工作狀態(tài)下的數(shù)據(jù)可靠性。接觸端子采用鍍金工藝處理，配合四線制測量模式，有效消除接觸電勢帶來的誤差。面板布局采用人機工程學設(shè)計，配備240×128點陣液晶顯示屏，支持測量數(shù)據(jù)實時顯示和趨勢曲線查看功能。
在工業(yè)現(xiàn)場應(yīng)用中，F(xiàn)MQJ23b配備RS485通訊接口，可便捷接入自動化測試系統(tǒng)。設(shè)備內(nèi)置12組用戶自定義參數(shù)存儲單元，支持快速調(diào)用常用測量模式。雙層屏蔽機箱結(jié)構(gòu)配合濾波電路設(shè)計，使產(chǎn)品在復(fù)雜電磁環(huán)境中仍能保持優(yōu)異抗干擾性能。操作界面提供中英雙語切換功能，滿足不同使用者的操作習慣需求。
【English Introduction】
The FMQJ23b DC Three-Terminal Resistance Bridge is a laboratory-grade testing instrument specifically designed for precision resistance measurement. Employing a three-terminal structure, it effectively minimizes the impact of contact resistance and lead resistance on measurement results. Equipped with a high-stability constant current source module and digital processing unit, the device achieves a basic measurement accuracy of ±0.02% within the 0.1mΩ-10kΩ range, making it particularly suitable for resistance analysis in semiconductor materials, precision sensors, and power electronic components.
The product incorporates an innovative temperature compensation system that maintains measurement stability within ambient temperatures of 15℃-35℃, with temperature drift coefficient controlled below 5ppm/℃. Gold-plated terminals combined with four-wire measurement mode effectively eliminate contact potential errors. The ergonomic control panel features a 240×128 dot matrix LCD display, providing real-time measurement data visualization and trend curve analysis capabilities.
For industrial applications, the FMQJ23b comes with RS485 communication interface for seamless integration into automated test systems. Its 12 user-defined parameter storage units allow quick access to frequently used measurement modes. The double-shielded chassis structure coupled with advanced filtering circuit design ensures excellent anti-interference performance in complex electromagnetic environments. The multilingual interface (Chinese/English) accommodates diverse operational preferences.
This instrument demonstrates particular value in scientific research institutions and quality control laboratories, where it provides reliable technical support for material conductivity analysis and component performance verification. Simplified calibration procedures and modular circuit design significantly reduce maintenance requirements, while the compact form factor (320×280×120mm) and lightweight construction (4.8kg) enhance equipment portability for field measurement tasks.
