YJ49a电位差计、单双臂电桥专用电源
产品概述
YJ49a型高精度直流稳压电源是一款专为直流电位差计及单双臂电桥设计的配套电源设备，可输出2V、4V、6V三种电压，电流输出范围为十几毫安。该产品广泛应用于厂矿企业、高校实验室等场景，适配多种直流电位差计（如UJ9、UJ24、UJ25、UJ29、UJ26、UJ14、UJ31、UJ35、UJ51等型号），但不适用于UJ32、UJ42型电位差计。其设计注重快速响应与稳定性，预热时间仅需15分钟，相比传统型号大幅缩短了准备时间。110
技术特点
YJ49a采用独特的电路设计，内部不含标准电池，避免了电解液泄漏腐蚀电路板的风险。其输出电压每10分钟漂移控制在3×10⁻⁶至10×10⁻⁶范围内，纹波电压低于1μV，具备输出短路保护及自动恢复功能。产品尺寸为220×105×175毫米（可能存在小幅变动），重量约2kg，工作环境要求湿度低于80%且无腐蚀性气体。通过优化电流输出特性，该电源在保证精度的同时实现了更紧凑的结构设计。1611
产品优势
与同类产品相比，YJ49a在操作便捷性和维护成本方面表现突出。其面板配置了电源开关和三档电压切换开关，用户可根据电位差计需求快速调整输出电压。产品采用220V市电供电，背部插孔设计简化了连接流程。特殊设计的温控系统使得设备在长时间工作时仍能保持稳定性，适合需要连续测量的实验场景。对于教学用途的十一线板式电位差计，该电源也能提供理想的配套支持。3415
Product Overview
The YJ49a high-precision DC regulated power supply is specifically designed for DC potentiometers and single/double-arm bridges, providing three output voltages (2V, 4V, 6V) with a current range of several milliamperes. This equipment is widely used in industrial plants and university laboratories, compatible with most DC potentiometers including UJ9, UJ24, UJ25 series, though not suitable for UJ32 and UJ42 models. Its optimized thermal design achieves operational readiness within 15 minutes of warm-up time. 19
Technical Features
Featuring an advanced circuit architecture without standard battery components, the YJ49a eliminates risks of electrolyte leakage and board corrosion. It maintains exceptional stability with voltage drift limited to 3-10×10⁻⁶ per 10 minutes and ripple voltage below 1μV. The built-in short-circuit protection with auto-recovery function ensures device safety. Compact dimensions (220×105×175mm) and 2kg weight make it ideal for space-constrained lab environments, operating under humidity <80% conditions. 61013
Operational Benefits
This power supply offers remarkable user convenience through front-panel voltage selection switches and standard 220V AC input. The thermal management system guarantees consistent performance during prolonged measurements, particularly beneficial for educational applications like 11-wire plate-type potentiometers. Compared to conventional models, its maintenance-free design and fast stabilization significantly improve workflow efficiency in precision measurement scenarios. 4514
YJ49a电位差计、单双臂电桥专用电源
的详细介绍
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电位差计、单双臂电桥专用电源
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序号
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型号
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输出电流
mA
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输出电压
V
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飘移
/10 hour
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预热时间
min
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备 注
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出厂价￥
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2-38
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YJ24-1
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0～25
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1.5～6
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2×10-5
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15
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适用于各种电位差计
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600
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2-39
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YJ49
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0～40
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2,4,6
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1×10-5
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15
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1880
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2-40
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YJ49a
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0～1000
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0～6
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1×10-5
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15
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适用于各种单双臂电桥、电位差计包括11线板式电位差计
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2200
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