UJ25 直流高電位差計(jì)產(chǎn)品介紹
一、中文介紹（約450字）
UJ25型直流高電位差計(jì)是一款基于精密補(bǔ)償原理設(shè)計(jì)的高性能電位測(cè)量?jī)x器，適用于科研實(shí)驗(yàn)、工業(yè)檢測(cè)及精密計(jì)量等領(lǐng)域?qū)χ绷麟妷旱母呔葴y(cè)量需求。該設(shè)備采用模塊化電路設(shè)計(jì)和多重防護(hù)結(jié)構(gòu)，在保證測(cè)量精度的同時(shí)提升了操作便捷性與環(huán)境適應(yīng)性。
核心特點(diǎn)方面，儀器具備0.01級(jí)測(cè)量精度，可支持0.01μV至1.911110V的寬量程測(cè)量。獨(dú)特的溫度補(bǔ)償系統(tǒng)有效降低了環(huán)境溫度波動(dòng)對(duì)測(cè)量結(jié)果的影響，配合高穩(wěn)定性電阻網(wǎng)絡(luò)設(shè)計(jì)，確保設(shè)備在連續(xù)工作狀態(tài)下仍能保持優(yōu)異的測(cè)量重復(fù)性。三端鈕輸入設(shè)計(jì)有效消除接觸電阻干擾，內(nèi)置的極性切換裝置支持正反向電壓快速測(cè)量。
在結(jié)構(gòu)設(shè)計(jì)上，儀器采用多層電磁屏蔽技術(shù)，大幅降低外界電磁干擾對(duì)測(cè)量精度的影響。機(jī)械調(diào)零裝置與電子調(diào)零系統(tǒng)雙重配合，簡(jiǎn)化了設(shè)備校準(zhǔn)流程。大尺寸刻度盤配合游標(biāo)讀數(shù)機(jī)構(gòu)，使最小分度值達(dá)到0.1μV，顯著提升目視讀數(shù)的準(zhǔn)確性。
應(yīng)用場(chǎng)景覆蓋高校物理實(shí)驗(yàn)室的精密電勢(shì)測(cè)量、電子元器件廠的基準(zhǔn)電壓校準(zhǔn)、以及計(jì)量機(jī)構(gòu)的量值傳遞工作。其分體式結(jié)構(gòu)設(shè)計(jì)便于維護(hù)保養(yǎng)，標(biāo)準(zhǔn)化接口支持與數(shù)字電壓表、標(biāo)準(zhǔn)電池等多種設(shè)備協(xié)同工作，滿足不同場(chǎng)景下的復(fù)合測(cè)量需求。
操作體驗(yàn)方面，儀器面板布局符合人體工程學(xué)原理，防滑旋鈕與阻尼調(diào)節(jié)裝置使操作過(guò)程更加精準(zhǔn)可控。全封閉式外殼采用工程塑料與金屬?gòu)?fù)合材質(zhì)，既保證設(shè)備強(qiáng)度又減輕整體重量，配合底部防震腳墊設(shè)計(jì)，有效提升設(shè)備在移動(dòng)使用中的穩(wěn)定性。
二、English Introduction (approx. 420 words)
The UJ25 DC High-Potential Potentiometer is a precision measurement instrument designed for accurate determination of DC voltage differences in scientific research, industrial testing, and metrological applications. Utilizing a compensated circuit architecture, this device achieves exceptional measurement stability while maintaining operational simplicity across various working environments.
Technical features include a 0.01-class accuracy rating with measurable range spanning from 0.01μV to 1.911110V. The integrated temperature compensation mechanism effectively neutralizes ambient temperature variations, working in tandem with a highly stable resistor network to ensure measurement consistency during prolonged operation. The three-terminal input configuration minimizes contact resistance interference, complemented by a bidirectional polarity switching system for rapid voltage measurements.
Structural innovations encompass multi-layer electromagnetic shielding that significantly reduces external interference. The dual calibration system combining mechanical zero adjustment and electronic null detection simplifies device calibration procedures. A large-diameter graduated dial paired with vernier reading mechanism enables visual resolution down to 0.1μV, enhancing measurement readability.
This potentiometer finds applications in university physics laboratories for precise electromotive force measurement, electronic component factories for reference voltage calibration, and metrological institutes for value transmission tasks. The modular construction facilitates maintenance operations, while standardized interfaces allow seamless integration with digital voltmeters and standard cells for composite measurement requirements.
Ergonomic design elements include anti-slip knobs and damped adjustment mechanisms that ensure precise control during operation. The hybrid enclosure constructed from engineering plastics and metal alloys provides structural durability with reduced weight, supported by vibration-damping feet to enhance stability during mobile usage.
Measurement reliability is further reinforced by the precision-machined slide wire mechanism, which maintains contact consistency through over 100,000 operational cycles. The device s open-frame construction allows convenient access for periodic verification, while maintaining measurement integrity through optimized thermal management design.
With its balanced performance in accuracy, durability, and user accessibility, the UJ25 serves as a dependable tool for professionals requiring trustworthy voltage measurements in critical applications. The instrument s design philosophy emphasizes long-term measurement stability, making it suitable for extended observation tasks in controlled laboratory environments.
