AC5-1直流檢流計/AC51
產品概述
AC5-1指針式直流檢流計是一款高靈敏度磁電式儀表，專為檢測微弱直流電流或電壓設計，適用于實驗室、科研機構及教學場景。該儀器采用懸絲支撐結構，顯著降低機械摩擦對測量精度的影響，可準確測量微安級至納安級電流（10⁻⁷~10⁻¹⁰A）或毫伏級至微伏級電壓（10⁻³~10⁻⁶V）。其便攜式設計搭配膠木密封外殼，既保證機械穩(wěn)定性，又能有效抵御環(huán)境灰塵干擾，適合在復雜實驗條件下使用。1813
The AC5-1 DC galvanometer is a highly sensitive magnetoelectric instrument designed for detecting微弱DC currents or voltages. It is widely used in laboratories, research institutions, and educational settings. With a suspended wire support structure, it minimizes mechanical friction, enabling precise measurement from microampere to nanoampere ranges (10⁻⁷~10⁻¹⁰A) or millivolt to microvolt levels (10⁻³~10⁻⁶V). Its portable design features a bakelite-sealed casing that ensures stability and protects against environmental contaminants.
技術特點
AC5-1檢流計的核心技術包括寬頻帶低漂移放大電路與雙向偏轉指針表頭，支持中心零位指示，可直觀顯示電流方向及大小。儀器內置粗測、細測和短路三檔功能按鈕，用戶可通過點動或鎖定模式靈活切換量程，兼顧高靈敏度與過載保護。其內阻為50Ω，外臨界電阻范圍150Ω~14kΩ，適配多種電橋、電位差計等精密儀器作為零位指示器。此外，水平放置設計減少了傾斜誤差，提升了測量可靠性。4618
The AC5-1 incorporates a broadband low-drift amplification circuit and a bidirectional pointer meter with center-zero indication, clearly displaying current polarity and magnitude. It features three functional buttons (coarse, fine, and short-circuit) for量程切換和protection against overload. With an internal resistance of 50Ω and external critical resistance ranging from 150Ω to 14kΩ, it is compatible with various bridges and potentiometers as a null detector. The horizontal placement design minimizes tilt-induced errors.
應用場景
該儀器適用于光電效應、生理電信號、溫差電動勢等微弱信號檢測，也可作為直流電橋、電位差計的配套指零儀。在教育領域，其操作簡便性使學生能快速掌握基礎電學測量原理；在科研中，高重復性和低噪聲特性助力精密實驗數據采集。典型應用包括記錄神經動作電位、材料導電性分析及傳感器標定等。11322
Applications span微弱signal detection such as photoelectric effects, bioelectric signals, and thermoelectric EMFs, as well as serving as a null indicator for DC bridges and potentiometers. In education, its user-friendly design facilitates foundational electrical measurements, while its high repeatability and low noise benefit精密scientific research, including neural potential recording and sensor calibration.
操作與維護
使用前需通過機械調零和電氣調零確保基準準確，建議預熱5分鐘以穩(wěn)定電路性能。測量時通過粗調按鈕快速定位信號范圍，再切換至細調模式獲取精確讀數。內置短路按鈕可強制歸零，用于驗零或緊急保護。日常存放應避免強磁場干擾，定期清潔接線柱以維持導電性。儀器尺寸為160×105×150mm，重量約1.5kg，便于攜帶與安裝。41218
Operation requires initial mechanical and electrical zeroing, with a recommended 5-minute預熱for circuit stabilization. The coarse/fine buttons enable rapid signal localization and precise measurement, while the short-circuit button強制resets the pointer. Storage should avoid strong magnetic fields, with regular terminal cleaning. Compact dimensions (160×105×150mm) and light weight (1.5kg) enhance portability.
AC5-1 直流檢流計
的詳細介紹AC5-1直流檢流計/AC51
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A C 5系列直流檢流計
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6-5
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AC5-1
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直流檢流計
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0～±300μA
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有“粗、細、短路”
三個按鍵
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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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直流檢流計
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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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直流檢流計
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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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直流檢流計
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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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直流檢流計
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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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直流檢流計
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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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直流檢流計
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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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直流檢流計
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開關轉換，覆蓋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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直流檢流計
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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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