AZ19直流檢流計/AZ-19
AZ19直流檢流計產(chǎn)品介紹（中文）
AZ19直流檢流計是一款高精度、低噪聲的電子式測量儀器，采用調(diào)制型直流放大器與指針式表頭相結(jié)合的設(shè)計，適用于實驗室和工業(yè)現(xiàn)場等多種場景。該儀器具備高靈敏度和穩(wěn)定性，無需外接臨界電阻，過載恢復能力強，抗震性能優(yōu)異，讀數(shù)清晰直觀。其獨特設(shè)計包括可切換的輸入濾波器功能，能有效抑制工頻干擾，提升串模抑制能力。儀器支持對失調(diào)電流和電壓的便捷補償，確保信號源內(nèi)阻變化時零位保持穩(wěn)定。內(nèi)置非線性量程檔位，便于電橋或電位差計的粗平衡操作。采用三節(jié)1號干電池供電，功耗低至7mW，便攜式設(shè)計（190×135×240mm，2.35kg）適合移動測量需求。核心性能包括0.5μV~500μV的電壓常數(shù)范圍、18kΩ~1.8MΩ的輸入阻抗，以及≤2.5μV/4h的零電壓漂移，表頭指示誤差控制在±5%以內(nèi)。1512
AZ-19 DC Galvanometer Product Introduction (English)
The AZ-19 DC Galvanometer is an advanced electronic measuring device integrating a modulated DC amplifier with an analog pointer display, designed for precision applications in laboratories and industrial environments. It features high sensitivity (0.5μV~500μV voltage constant) and stable performance without requiring external critical resistance, with rapid overload recovery and excellent vibration resistance. The instrument incorporates a switchable input filter to enhance common-mode rejection in environments with severe power frequency interference. Its automatic compensation function for offset current/voltage maintains zero-position stability regardless of signal source impedance variations. The non-linear range setting facilitates coarse balancing in bridge circuits or potentiometers. Powered by three AA batteries (7mW consumption), its compact design (190×135×240mm, 2.35kg) ensures portability. Technical specifications include 18kΩ~1.8MΩ input impedance, ≤2.5μV/4h zero-voltage drift, and ±5% meter indication accuracy. The device demonstrates notable anti-interference capabilities with >60dB series-mode and >120dB common-mode rejection ratios. 2615
產(chǎn)品功能特點（中文）
該檢流計可替代傳統(tǒng)AC15/1-6型復射式檢流計，兼容AC24光電放大器擴展更高靈敏度需求。作為多功能測量工具，它既可作為電橋/電位差計的零位指示器，也可用作低漂移直流放大器或直流電壓表檢測微弱信號。儀器采用第四代斬波穩(wěn)零技術(shù)運算放大器，配合大表面指針表頭實現(xiàn)寬視野顯示。特殊設(shè)計的非線性量程檔在10μV范圍內(nèi)提供±30μV高靈敏度，同時具備30倍以上的動態(tài)范圍壓縮能力，適用于強信號場景。屏蔽結(jié)構(gòu)和電池供電設(shè)計有效降低市電共模干擾，面板接地端子可連接信號源外殼增強抗干擾性。預熱10分鐘后即可穩(wěn)定工作，操作界面包含電池電量檢查、調(diào)零校準等實用功能。31114
Functional Features (English)
This galvanometer serves as a direct replacement for traditional AC15/1-6 mirror galvanometers and can connect with AC24 photoelectric amplifiers for higher sensitivity requirements. Its multifunctional design allows operation as a null detector for bridges/potentiometers, low-drift DC amplifier, or micro-voltage meter. The fourth-generation chopper-stabilized operational amplifier ensures high gain with minimal noise, paired with a large analog display for clear visibility. The unique non-linear range provides ±30μV sensitivity within 10μV range while offering >30dB dynamic range compression for strong signals. Shielded construction and battery power supply effectively minimize mains interference, with a front-panel grounding terminal for enhanced noise immunity when connected to signal source chassis. After 10-minute warm-up, the device achieves stable operation with user-friendly functions including battery check and zero-adjustment calibration. 71317
AZ19直流檢流計
的詳細介紹AZ19直流檢流計/AZ-19
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電 子 檢 流 計
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序號
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型號
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名 稱
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技術(shù)參數(shù)和性能特點
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出廠價￥
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環(huán)保型
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電池型
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6-1
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AZ19
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直流檢流計
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電壓常數(shù)0.5μV/格，測量范圍30μV～30mV，有非線性檔
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880
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730
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6-2
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JZ3
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電子指零儀
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電流常數(shù)＜3×10-9A/分度;有保護電路，靈敏度連續(xù)可調(diào)。
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——
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700
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6-3
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FMA
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電子指零儀
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電流常數(shù)＜3×10-9A/分度;有保護電路，靈敏度連續(xù)可調(diào)。
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800
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——
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6-4
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FMA-1
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直流檢流計
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電壓常數(shù)0.5μV/格，測量范圍30μV～30mV，有非線性檔
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1020
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SF-PA-54.5 DA-40，8 SF-PE-10.0 SF-PE-11.6 SF-PE-13.0 LR-07 SF-PE-15.8 LR-20A SF-PE-18.5 SF-PE-21.2 SF-PE-25.0 KT-2000 SF-PE-28.5 KT-2010 SF-PE-34.5 SF-PE-42.5 SF-PE-54.5 KT-2008 SF-PP-7.0 KT-2002 SF-PP-10.0 KT-22 SF-PP-11.6 KU-1133 SF-PP-13.0 KU-2600 SF-PP-15.8 KU-2608 SF-PP-18.5 SK-6160 SF-PP-21.2 SK-6500 SK-6544 SF-PP-25.0 SK-6555 SF-PP-28.5 SK-4030 SF-PP-34.5 SF-PP-42.5 SF-PP-54.5 DJHT225W10 SF-SM-M12 SK-6180 DJGW1A SK-6188 SF-SM-M16 KF-1 SF-SM-M16 KF-20 SF-SM-M18 SF-SM-M20 SF-SM-M20 DJHT225W10 SF-SM-M24 DJHT225W09 SF-SM-M25 DH-2000A SF-SM-M25 SF-SM-M27 SF-SM-M32 SF-SM-M36 SF-SM-M48 SF-SM-M60 SF-SM-PG7 SF-SM-PG9 SF-SM-PG11 SF-SM-PG13.5 SF-SM-PG16 SF-SM-PG21 SF-SM-PG29 SF-SM-PG36 SF-SM-PG48 SF-SM-3/4 SF-SM-1″ SF-RQG-M12 SF-RQG-M16 SF-RQG-M16 SF-RQG-M18 KF-5 SF-RQG-M20 KF-8 SF-RQG-M18 SF-RQG-M16 |
