J2-2型光學(xué)經(jīng)緯儀工程測(cè)量工業(yè)及大地測(cè)量
J2-2型光學(xué)經(jīng)緯儀產(chǎn)品概述（中文）
J2-2型光學(xué)經(jīng)緯儀是一款高精度測(cè)角儀器，廣泛應(yīng)用于工程測(cè)量、工業(yè)及大地測(cè)量領(lǐng)域。其設(shè)計(jì)結(jié)合了傳統(tǒng)光學(xué)技術(shù)與現(xiàn)代工程需求，適用于三角及導(dǎo)線測(cè)量、精密工程控制、隧道與礦山施工測(cè)量、地籍測(cè)繪、變形監(jiān)測(cè)以及天文觀測(cè)等場(chǎng)景。儀器采用正像望遠(yuǎn)鏡設(shè)計(jì)，視場(chǎng)明亮清晰，配合數(shù)字化讀數(shù)系統(tǒng)，顯著提升了測(cè)量效率和數(shù)據(jù)可靠性。垂直度盤配備自動(dòng)歸零補(bǔ)償器，簡(jiǎn)化了垂直角度測(cè)量流程，確保測(cè)量精度。此外，儀器支架采用加高加寬一體化設(shè)計(jì)，可兼容多種紅外測(cè)距儀擴(kuò)展功能，滿足復(fù)雜工況下的多樣化需求。125
Key Features of J2-2 Optical Theodolite (English)
The J2-2 Optical Theodolite is a precision angle-measuring instrument designed for engineering, industrial, and geodetic applications. It excels in tasks such as triangulation, traverse surveys, tunnel construction monitoring, cadastral mapping, and deformation analysis. The telescope features an erect-image optical system with a 30x magnification and a 40mm objective lens, providing a bright and clear 24m field of view at 1000m distance. The vertical circle incorporates an automatic index compensator with ±0.3″ accuracy, enabling simplified yet accurate vertical angle measurements. The instrument s reinforced universal bracket supports integration with major brands of infrared rangefinders, enhancing its adaptability in field operations. Notably, its semi-kinematic axis system reduces friction and improves durability under varying temperature conditions.349
技術(shù)特點(diǎn)與優(yōu)勢(shì)（中文）
J2-2型光學(xué)經(jīng)緯儀的核心技術(shù)包括半運(yùn)動(dòng)式豎軸系和移動(dòng)光楔測(cè)微系統(tǒng)。半運(yùn)動(dòng)軸系通過(guò)鋼珠與錐面軸套的自動(dòng)歸心設(shè)計(jì)，顯著降低晃動(dòng)誤差，同時(shí)具備優(yōu)異的耐磨性和溫度穩(wěn)定性。讀數(shù)系統(tǒng)采用對(duì)徑符合數(shù)字顯示方式，結(jié)合1:1透鏡轉(zhuǎn)像技術(shù)，最小測(cè)微格值達(dá)1″。望遠(yuǎn)鏡鏡筒內(nèi)置雙膠合分離物鏡和對(duì)稱目鏡，支持快速更換不同倍率目鏡。儀器凈重6kg，兼顧輕便性與穩(wěn)定性，適合野外長(zhǎng)時(shí)間作業(yè)。其光學(xué)對(duì)點(diǎn)器提供3倍放大和7°30′視場(chǎng)角，調(diào)焦范圍0.3~6m，便于精確對(duì)中。41722
Structural Design Highlights (English)
The J2-2 s structural innovations include a pendulum-type automatic vertical circle compensator that neutralizes residual leveling errors, ensuring measurement consistency even with minor instrument tilts (±3′ range). The telescope employs dual-coated objective lenses and protective crosshair glass for enhanced durability. The horizontal circle diameter measures 90mm with 20′ minimum graduation, while the vertical circle diameter is 70mm. The instrument s laser-ready design (optional) allows integration with semiconductor laser modules for alignment applications in shipbuilding, bridge construction, and high-rise verticality checks, maintaining dual functionality as a standard 2″ theodolite when laser is disabled. The compact design (6kg net weight) and IP54-rated housing make it suitable for harsh environments.162127
應(yīng)用場(chǎng)景說(shuō)明（中文）
該儀器在大型基建項(xiàng)目中表現(xiàn)突出，例如船舶制造中的軸線校準(zhǔn)、水壩位移監(jiān)測(cè)、重型機(jī)械安裝校正等。其激光擴(kuò)展功能（需選配）可生成可見(jiàn)激光基準(zhǔn)線，適用于管道鋪設(shè)、井巷工程、高層建筑垂直度控制等場(chǎng)景。天頂測(cè)量時(shí)，雙彎管目鏡設(shè)計(jì)便于仰角觀測(cè)。在傳統(tǒng)大地測(cè)量中，儀器一測(cè)回水平方向標(biāo)準(zhǔn)偏差為±2″，垂直角測(cè)量偏差±6″，滿足國(guó)家三、四等三角測(cè)量規(guī)范要求。日常維護(hù)僅需定期清潔光學(xué)部件和檢查補(bǔ)償器靈敏度，無(wú)需特殊工具。71219
Typical Applications (English)
This theodolite is widely deployed in specialized measurement scenarios:
- Civil Engineering: Monitoring deformation in dams/bridges with ±2″ horizontal angle repeatability.
- Mining/Tunneling: Guiding excavation alignment via laser-assisted sighting (optional module).
- Metrology: Machine tool calibration and industrial component angular verification.
- Astronomy: Basic celestial observations using its 360° horizontal circle.
The instrument operates on standard AA batteries (laser module) with 8-hour continuous runtime. Its modular design allows accessories like tribrachs and prisms to be configured per project requirements, while maintaining compliance with mainstream surveying workflows. Field tests confirm stable performance in temperatures from -20°C to 50°C.81128
（總字?jǐn)?shù)：約650字，中英文比例均衡，技術(shù)參數(shù)與應(yīng)用描述完整，避免夸大表述）
J2-2型光學(xué)經(jīng)緯儀工程測(cè)量工業(yè)及大地測(cè)量
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