FMT31普通型十进电感箱
产品概述
FMT31普通型十进电感箱是一款专为交流电路设计的教学与实验用可调电感设备，适用于高校实验室、科研单位及电子工程领域。该产品通过多盘步进式结构实现电感值的精确调节，可作为交流电桥、滤波电路、谐振网络等场景中的可变标准感性元件。其设计注重实用性与稳定性，采用耐高温绝缘材料骨架，确保电感值在长时间工作中保持稳定。36
功能特点
FMT31由三组步进盘组成，分别提供0.1mH、1mH和10mH的最小步进值，总电感调节范围为0~111mH，满足不同精度需求。每个步进盘均设有独立接线柱，支持串联、并联或单独使用，灵活适配多种实验配置。产品采用红黑双色接线柱标识同名端，简化连接操作。工作频率兼容1kHz±20Hz正弦波，在环境温度20±5℃、湿度80%条件下性能稳定。外壳设计避免铁磁材料干扰，确保测量准确性。1917
技术参数
电感调节范围：(0~10)×(0.1+1+10)mH，最大电感值111mH；步进精度0.5%，额定电流分级为1.5A/1.0A/0.6A（对应不同量程）。物理尺寸450×140×140mm，重量约3kg，采用工程塑料与金属复合结构，兼顾耐用性与便携性。产品适用于阻抗匹配、功率因数校正等实验场景，尤其适合高频电路的教学演示。1218
应用场景
广泛应用于电工电子类课程实验，如RLC谐振特性分析、交流参数测定、二阶电路响应研究等。其模块化设计便于学生理解电感叠加原理，多档位调节功能可直观展示电感值对电路特性的影响。在工业领域，可用于小型设备滤波电路调试或传感器信号调理电路的阻抗匹配。313
Product Overview
The FMT31 Decade Inductance Box (Standard Type) is an adjustable inductance device designed for AC circuit experiments and educational purposes, widely used in university laboratories and electronic engineering applications. It features a multi-dial stepping mechanism to precisely adjust inductance values, serving as a variable inductive component in scenarios like AC bridges, filter circuits, and resonant networks. The product emphasizes practicality and stability, employing high-temperature-resistant insulating materials to maintain consistent performance.69
Key Features
With three decade dials providing minimum steps of 0.1mH, 1mH, and 10mH, the FMT31 covers a total adjustable range of 0~111mH. Each dial has independent terminals labeled with red/black markers for polarity identification, supporting series, parallel, or individual configurations. Compatible with 1kHz±20Hz sinusoidal waveforms, it operates stably under ambient temperatures of 20±5℃ and 80% humidity. The non-ferromagnetic enclosure minimizes external interference.117
Specifications
Inductance range: (0~10)×(0.1+1+10)mH (max 111mH); stepping accuracy 0.5%, rated current 1.5A/1.0A/0.6A (by range). Dimensions 450×140×140mm, weight ~3kg. The hybrid plastic-metal construction ensures durability. Ideal for demonstrating impedance transformation, harmonic filtering, and circuit tuning in both educational and prototyping environments.1218
Applications
Suited for electrical engineering curricula, including RLC resonance experiments, AC parameter measurement, and dynamic circuit analysis. The modular design aids in teaching inductance superposition principles. Industrial applications include signal conditioning in sensor interfaces and EMI filter debugging for compact electronic devices.313
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十 进 电 感 箱( 普通型 )
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序号
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型号
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开关数
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小步进mH
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大电感mH
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可调范围mH
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准确度%
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额定电流A
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出厂价￥
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4-1
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GX9/00
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1
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0.001
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0.01
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(0～10)×0.001
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10
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0.6
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750
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4-2
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GX9/0
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1
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0.01
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0.1
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(0～10)×0.01
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5
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0.6
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670
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4-3
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GX9/1
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1
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0.1
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1
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(0～10)×0.1
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2
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0.6
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600
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4-4
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GX9/2
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1
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1
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10
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(0～10)×1
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1
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0.38
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670
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4-5
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GX9/3
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1
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10
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100
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(0～10)×10
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0.5
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0.15
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700
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4-6
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GX9/4
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1
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100
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1000
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(0～10)×100
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0.5
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0.05
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700
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4-7
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GX9/5
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1
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1000
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10000
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(0～10)×1000
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1
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0.01
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700
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4-8
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FMT12H
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1
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5
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20
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(0～4)×5(高频)
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0.5
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0.6
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880
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4-9
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FMT/001
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2
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精密纳亨电感箱
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(0～10)×(0.01+0.1)μH
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5
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2.2
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2050
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4-10
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FMT200
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2
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0.01
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1.10
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(0～10)×(0.01+0.1)
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2
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2.2/1.5
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1150
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4-11
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FMT20
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2
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0.1
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11.0
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(0～10)×(0.1+1)
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1
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1.5/1.0
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1150
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4-12
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FMT21
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2
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1
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110
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(0～10)×(1+10)
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0.5
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1.0/0.6
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1050
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4-13
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FMT22
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2
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10
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1100
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(0～10)×(10+100)
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0.5
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0.6/0.08
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1150
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4-14
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FMT23
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2
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100
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11000
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(0～10)×(100+1000)
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0.5
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0.08/0.015
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1200
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4-15
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FMT300
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3
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0.001
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1.110
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(0～10)×(0.001+0.01+0.1)
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2
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2.2/1.5
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1400
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4-16
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FMT30
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3
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0.01
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11.10
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(0～10)×(0.01+0.1+1)
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1
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2.2/1.0
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1400
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4-17
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FMT31
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3
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0.1
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111.0
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(0～10)×(0.1+1+10)
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0.5
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1.5/1.0/0.6
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1500
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4-18
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FMT32
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3
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1
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1110
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(0～10)×(1+10+100)
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0.5
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1.0/0.6/0.08
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1600
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4-19
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FMT33
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3
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10
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11100
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(0～10)×(10+100+1000)
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0.5
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0.6/0.015
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1800
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4-20
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FMT400
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4
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0.001
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1110.0
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(0～10)×(0.001+0.01+0.1+1)
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1
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2.2/1.0
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1800
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4-21
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FMT40
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4
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0.01
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111.10
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(0～10)×(0.01+0.1+1+10)
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0.5
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2.2/0.6
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1800
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4-22
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FMT41
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4
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0.1
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1111.0
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(0～10)×(0.1+1+10+100)
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0.5
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1.5/0.08
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1900
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4-23
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FMT42
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4
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1
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11110
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(0～10)×(1+10+100+1000)
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0.5
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1.0/0.015
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2050
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4-24
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FMT500
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5
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0.001
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111.110
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(0～10)×(0.001 + 0.01 + 0.1 + 1 + 10)
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0.5
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2.2/0.6
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2230
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4-25
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FMT50
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5
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0.01
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1111.10
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(0～10)×(0.01 + 0.1 + 1 + 10 + 100)
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0.5
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2.2/0.08
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2230
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4-26
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FMT51
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5
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0.1
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11111.0
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(0～10)×(0.1 + 1 + 10 + 100 + 1000)
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0.5
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1.5/0.015
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2380
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