FMT42普通型十进电感箱
产品概述
FMT42普通型十进电感箱是一款专为交流电路设计的精密可调电感设备，适用于高校实验室、科研机构及工业应用场景。该产品采用多盘步进式结构，通过十进位开关实现电感值的精确调节，可调范围为(0～10)×(1+10+100+1000)mH，最小步进1mH，最大电感值达11110mH。其核心部件采用耐高温绝缘骨架绕制，确保电感稳定性，同时配备红黑双色接线柱便于串并联组合使用。产品工作频率为1kHz±20Hz，额定电流1.0A（低频段）/0.015A（高频段），在20±5℃环境温度下可保持稳定性能。箱体尺寸为580×140×140mm，重量约4kg，黑色耐磨防水漆面设计兼顾耐用性与美观性。135
技术特点
该电感箱采用四组步进盘组合设计，每组步进盘可独立使用或串联组合，实现1mH至11.11H的宽范围调节。内部电感线圈选用高稳定性材料绕制，配合精密十进开关，确保调节过程中接触电阻极小且重复性好。产品特别设计了磁屏蔽结构，可减少周围铁磁物质对测量精度的影响。使用时可自由切换不同量程，通过改变相邻开关接线柱的连接方式实现电感值的叠加或独立输出。箱体底部采用非金属绝缘底座，避免金属接触导致的涡流损耗，顶部内嵌搬运把手提升操作便捷性。61220
典型应用
FMT42电感箱广泛应用于交流电桥平衡、LCR谐振电路调试、阻抗匹配网络构建等场景。在高校电工实验中，可用于演示一阶/二阶电路响应、功率因数校正、滤波器设计等教学项目；在工业领域，可作为可变标准电感器用于设备校准。其多盘独立接线设计支持灵活组合，既能满足基础实验的单量程需求，也可通过串并联实现更宽范围的精密调节。产品特别适合需要频繁改变电感参数的研发场景，如无线充电系统优化、变压器特性研究等。2517
Product Overview
The FMT42 Decade Inductance Box is a precision adjustable inductor designed for AC circuits, featuring four-decade switching ranges from 1mH to 11.11H. Its robust construction with high-temperature-resistant insulation framework ensures stable inductance values under 1kHz±20Hz operating frequency. The unit provides 0.5% basic accuracy with color-coded terminals for series/parallel configurations, housed in a compact 580×140×140mm enclosure weighing approximately 4kg. Ideal for educational labs and R&D applications requiring variable inductive loads.3612
Key Features
This inductance box incorporates four independent decade dials with 1mH resolution, allowing flexible combination through front-panel terminals. The magnetically shielded design minimizes external interference while the non-conductive base prevents eddy current losses. Each dial maintains consistent contact resistance below 50mΩ during adjustment, supported by durable switch mechanisms rated for 10,000 operations. The top-mounted handle and side-mounted terminals facilitate easy integration into experimental setups. Operating temperature range covers -10°C to +40°C with ≤80% relative humidity.20617
Typical Applications
Widely adopted in university laboratories for demonstrating RLC circuit characteristics, impedance transformation, and filter design principles. Serves as essential equipment for AC bridge measurements, resonant frequency testing, and magnetic component research. The modular design enables customized inductance networks for power electronics development, including wireless power transfer optimization and transformer simulation. Its educational-friendly interface supports hands-on learning of electromagnetic theory fundamentals.5212
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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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