AZ19直流检流计/AZ-19
AZ19直流检流计产品介绍（中文）
AZ19直流检流计是一款高精度、低噪声的电子式测量仪器，采用调制型直流放大器与指针式表头相结合的设计，适用于实验室和工业现场等多种场景。该仪器具备高灵敏度和稳定性，无需外接临界电阻，过载恢复能力强，抗震性能优异，读数清晰直观。其独特设计包括可切换的输入滤波器功能，能有效抑制工频干扰，提升串模抑制能力。仪器支持对失调电流和电压的便捷补偿，确保信号源内阻变化时零位保持稳定。内置非线性量程档位，便于电桥或电位差计的粗平衡操作。采用三节1号干电池供电，功耗低至7mW，便携式设计（190×135×240mm，2.35kg）适合移动测量需求。核心性能包括0.5μV~500μV的电压常数范围、18kΩ~1.8MΩ的输入阻抗，以及≤2.5μV/4h的零电压漂移，表头指示误差控制在±5%以内。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
产品功能特点（中文）
该检流计可替代传统AC15/1-6型复射式检流计，兼容AC24光电放大器扩展更高灵敏度需求。作为多功能测量工具，它既可作为电桥/电位差计的零位指示器，也可用作低漂移直流放大器或直流电压表检测微弱信号。仪器采用第四代斩波稳零技术运算放大器，配合大表面指针表头实现宽视野显示。特殊设计的非线性量程档在10μV范围内提供±30μV高灵敏度，同时具备30倍以上的动态范围压缩能力，适用于强信号场景。屏蔽结构和电池供电设计有效降低市电共模干扰，面板接地端子可连接信号源外壳增强抗干扰性。预热10分钟后即可稳定工作，操作界面包含电池电量检查、调零校准等实用功能。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直流检流计
的详细介绍AZ19直流检流计/AZ-19
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电 子 检 流 计
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序号
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型号
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名 称
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技术参数和性能特点
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出厂价￥
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环保型
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电池型
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6-1
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AZ19
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直流检流计
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电压常数0.5μV/格，测量范围30μV～30mV，有非线性档
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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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电子指零仪
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电流常数＜3×10-9A/分度;有保护电路，灵敏度连续可调。
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——
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700
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6-3
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FMA
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电子指零仪
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电流常数＜3×10-9A/分度;有保护电路，灵敏度连续可调。
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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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直流检流计
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电压常数0.5μV/格，测量范围30μV～30mV，有非线性档
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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 |
