FMQJ49a型直流單臂電橋產(chǎn)品介紹（中文版）
FMQJ49a型直流單臂電橋是一款采用經(jīng)典電橋原理設(shè)計(jì)的高精度電阻測(cè)量?jī)x器，專為實(shí)驗(yàn)室檢測(cè)、工業(yè)設(shè)備維護(hù)及電子元器件研發(fā)等領(lǐng)域打造。本產(chǎn)品通過優(yōu)化結(jié)構(gòu)設(shè)計(jì)和材料選擇，在保證測(cè)量精度的同時(shí)顯著提升環(huán)境適應(yīng)能力，適用于各類復(fù)雜工況下的電阻參數(shù)分析需求。
核心特點(diǎn)方面，該設(shè)備采用四端法測(cè)量技術(shù)，有效消除導(dǎo)線電阻對(duì)測(cè)量結(jié)果的影響，基本精度達(dá)到0.05%±3字，量程覆蓋10mΩ至1MΩ寬泛區(qū)間。內(nèi)置溫補(bǔ)電路可自動(dòng)修正環(huán)境溫度帶來的測(cè)量偏差，在-10℃至+50℃工作環(huán)境下，溫度波動(dòng)導(dǎo)致的誤差可控制在±0.5%以內(nèi)。操作界面配備雙顯LED顯示屏，同步顯示設(shè)定值與實(shí)測(cè)數(shù)據(jù)，旋鈕式量程切換裝置配合零點(diǎn)校準(zhǔn)功能，使操作流程更加直觀高效。
產(chǎn)品采用模塊化結(jié)構(gòu)設(shè)計(jì)，關(guān)鍵元器件均經(jīng)過200小時(shí)以上老化測(cè)試，確保長(zhǎng)期運(yùn)行的穩(wěn)定性。外殼選用輕量化鋁合金框架與工程塑料結(jié)合方案，既保證設(shè)備整體強(qiáng)度又便于移動(dòng)使用。內(nèi)部電路布局經(jīng)過電磁屏蔽優(yōu)化，在工業(yè)現(xiàn)場(chǎng)存在電磁干擾的情況下仍能保持測(cè)量數(shù)據(jù)穩(wěn)定。特別設(shè)計(jì)的防滑底座與傾斜式面板，可適應(yīng)不同工作臺(tái)面的放置需求。
典型應(yīng)用場(chǎng)景包括：精密電阻器生產(chǎn)過程中的品質(zhì)檢驗(yàn)、電力設(shè)備接地電阻監(jiān)測(cè)、教學(xué)實(shí)驗(yàn)中的電路特性分析等。建議使用環(huán)境應(yīng)保持通風(fēng)干燥，避免強(qiáng)磁場(chǎng)干擾和劇烈震動(dòng)。設(shè)備內(nèi)置鋰電池組支持連續(xù)8小時(shí)工作，配套專業(yè)分析軟件可實(shí)現(xiàn)測(cè)量數(shù)據(jù)的實(shí)時(shí)記錄與趨勢(shì)分析。
（英文版）
Product Introduction of FMQJ49a DC Wheatstone Bridge
The FMQJ49a DC Wheatstone Bridge is a high-precision resistance measurement instrument developed based on classical bridge principle, specifically designed for laboratory testing, industrial equipment maintenance, and electronic component R&D applications. Through optimized structural design and material selection, this device achieves exceptional measurement accuracy while significantly enhancing environmental adaptability, making it suitable for resistance parameter analysis under various complex working conditions.
Featuring four-terminal measurement technology, the instrument effectively eliminates the influence of lead resistance on test results, delivering basic accuracy of 0.05%±3 digits with a wide measurement range from 10mΩ to 1MΩ. The built-in temperature compensation circuit automatically corrects measurement deviations caused by ambient temperature fluctuations, maintaining error within ±0.5% under operating temperatures ranging from -10℃ to +50℃. The user-friendly interface incorporates dual LED displays for simultaneous parameter setting and real-time data monitoring, complemented by rotary range selector and zero calibration function for intuitive operation.
Constructed with modular architecture, critical components undergo rigorous 200+ hours aging tests to ensure long-term operational stability. The lightweight aluminum alloy frame combined with engineering plastic housing provides both structural durability and portability. Electromagnetic shielding optimization in circuit layout guarantees measurement consistency even in environments with industrial interference. Specially designed non-slip base and angled control panel enhance adaptability to various workstation configurations.
Typical applications include quality inspection during precision resistor manufacturing, grounding resistance monitoring for power equipment, and circuit characteristic analysis in educational laboratories. Recommended operating environment should maintain proper ventilation and dryness, avoiding strong magnetic fields and excessive vibration. The integrated lithium battery supports 8-hour continuous operation, with compatible analysis software enabling real-time data logging and trend analysis capabilities.
（總字?jǐn)?shù)：中文426字+英文365字=791字）
