AC5直流检流计/AC-5
AC5直流检流计的产品介绍
AC5系列直流检流计是一种高灵敏度的磁电式指针仪表，专为测量微弱直流电流和电压而设计。该系列产品采用精密张丝悬挂结构，通过载流线圈在磁场中的偏转实现高精度测量，适用于科研单位、学校实验室及电工测试场景。其核心特点包括便携式设计、密封式胶木外壳保护测量机构免受污染，以及水平放置时良好的抗倾斜性能。AC5检流计可提供多种量程选择（如±10μA至±300μA），内阻为50Ω，能有效检测低至10⁻¹⁰A的微弱电流或10⁻⁶V的微小电压，广泛应用于光电流、温差电动势等信号的测量。仪表配备机械调零和电气调零功能，并设有粗测、细测及短路按钮，便于操作和信号保护。其双向偏转表头设计可直观显示电流方向，双分度标尺确保读数清晰。147
AC5 Galvanometer Product Introduction
The AC5 series DC galvanometer is a highly sensitive magnetoelectric pointer instrument designed for measuring微弱直流电流（DC microcurrents）and voltages. Featuring a precision taut-band suspension system, it utilizes the deflection of a current-carrying coil within a magnetic field to achieve accurate measurements, making it ideal for research institutions, educational laboratories, and electrical testing environments. Key features include a portable design, sealed bakelite casing to protect internal components from contaminants, and stable performance even with slight tilting. With multiple ranges (e.g., ±10μA to ±300μA) and an internal resistance of 50Ω, it can detect currents as low as 10⁻¹⁰A or voltages of 10⁻⁶V, suitable for applications like photocurrent and thermoelectric potential measurement. The device incorporates mechanical and electrical zero-adjustment mechanisms, along with coarse/fine measurement buttons and a short-circuit function for operational flexibility and signal protection. Its center-zero bidirectional scale and dual graduations ensure clear readability. 2518
技术原理与结构特点
AC5检流计基于载流线圈在永磁场中受力矩偏转的原理工作，采用极细金属悬丝替代传统轴承，显著降低摩擦阻力，提升灵敏度。仪表结构包含宽频表头、放大电路及防护外壳，支持机械/电气双重调零。其输入阻抗低，适合准四端电阻信号接入，避免静电干扰。分档量程覆盖严谨（如AC5-1至AC5-7型号），可通过开关转换实现量程切换，确保测量连续性。表头设计兼顾标量与矢量显示需求，±60/±50格分度便于观察微小变化。41821
Applications and Functional Advantages
The AC5 galvanometer excels in zero-balance detection for DC bridges and potentiometers, while its high sensitivity enables direct measurement of nanoampere-level currents in fields such as biophysics (e.g., nerve action potential recording) and material science. The instrument’s modular design allows seamless integration with external circuits via input terminals, and its damping time is optimized for rapid stabilization. Users can manually adjust the mechanical zero point with a dial or fine-tune electrical zero via a multi-turn potentiometer. The sealed construction ensures long-term reliability in diverse environmental conditions. 3629
AC5直流检流计
的详细介绍AC5直流检流计/AC-5
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A C 5系列直流检流计
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6-5
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AC5-1
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直流检流计
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0～±300μA
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有“粗、细、短路”
三个按键
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600
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480
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6-6
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AC5-2
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直流检流计
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0～±100μA
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600
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480
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6-7
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AC5-3
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直流检流计
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0～±30μA
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620
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500
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6-8
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AC5-4
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直流检流计
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0～±10μA
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620
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500
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6-9
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AC5-5
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直流检流计
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0～±3μA
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630
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530
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6-10
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AC5-6
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直流检流计
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0～±1μA
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630
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530
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6-11
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AC5-7
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直流检流计
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0～±0.3μA
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630
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530
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6-12
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AC5
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直流检流计
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开关转换，覆盖AC5-1～AC5-7各量程
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870
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720
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6-13
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AC5(大)
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直流检流计
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±1μA～1mA，2×10-8～2×10-5A/格
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600
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470
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