FMT40普通型十进电感箱产品介绍（中文）
FMT40普通型十进电感箱是一款专为电子电路实验、电磁测量及信号调试设计的精密调节装置。该产品采用模块化十进制结构设计，通过多组独立线圈的优化组合，可提供灵活、稳定的电感值调节功能，适用于科研机构、教育实验、工业设备调试等多种应用场景。
本产品核心组件采用高稳定性合金磁芯与耐氧化漆包线绕组工艺，结合机械式旋转开关实现电感值的精确步进调节。电感调节范围覆盖1μH至100mH区间，支持以1μH为最小步进单位进行线性调节，满足基础电路匹配、滤波器参数校准等需求。面板采用耐磨工程塑料与防静电涂层处理，配合清晰的双色刻度盘设计，确保参数读取直观准确。
在结构设计方面，FMT40通过分层屏蔽技术有效抑制外部电磁干扰，内部采用多点接触式银合金触点，保障长期使用下的接触稳定性。独特的散热风道设计配合低损耗绕组方案，使设备在连续工作状态下仍能维持优良的温升特性。产品支持串联/并联模式切换，可通过组合连接扩展调节范围。
该电感箱适用于电子实验室基础元件参数模拟、教学演示电路搭建、通信设备阻抗匹配调试等场景。紧凑的台式结构设计兼顾便携性与操作便利性，所有调节单元均设有机械锁定装置，防止误触导致参数偏移。配备防震缓冲底座与三向防滑脚垫，确保设备在不同工作环境中的稳定性。
FMT40普通型十进电感箱（英文）
FMT40 General-Purpose Decade Inductance Box Product Introduction
The FMT40 General-Purpose Decade Inductance Box is a precision adjustment device specifically designed for electronic circuit experimentation, electromagnetic measurement, and signal debugging. Featuring a modular decimal structure design, this product enables flexible and stable inductance value adjustment through optimized combinations of independent coil groups, making it suitable for various applications including scientific research institutions, educational laboratories, and industrial equipment calibration.
Constructed with high-stability alloy magnetic cores and oxidation-resistant enameled wire windings, the device achieves precise stepwise inductance adjustment via mechanical rotary switches. With an adjustable range spanning from 1μH to 100mH and a minimum stepping unit of 1μH, it fulfills requirements for basic circuit matching and filter parameter calibration. The front panel incorporates wear-resistant engineering plastic with anti-static coating, complemented by a dual-color calibrated dial for clear parameter visualization.
The FMT40 implements layered shielding technology to effectively suppress external electromagnetic interference, while silver alloy multi-point contacts ensure long-term connection stability. Its unique thermal dissipation channels combined with low-loss winding configuration maintain optimal temperature characteristics during continuous operation. The unit supports series/parallel mode switching, allowing extended adjustment range through combined connections.
Ideal for electronic laboratory component simulation, educational circuit demonstration, and communication equipment impedance matching, the compact benchtop design balances portability with operational efficiency. All adjustment units are equipped with mechanical locking mechanisms to prevent accidental parameter changes. The vibration-damping base and tri-directional non-slip pads ensure stable performance across diverse working environments.
（中英文合计约680字）
