FM－QR2被測(四端)電阻箱
產(chǎn)品概述
FM-QR2被測(四端)電阻箱是一款專為實驗實訓設計的低阻值電阻測量設備，采用四端結構設計，有效消除引線電阻和接觸電阻對測量結果的影響。該產(chǎn)品適用于教學實驗、科研測試等場景，能夠提供穩(wěn)定可靠的電阻值輸出。12
技術特點
FM-QR2電阻箱采用精密電阻元件和優(yōu)質接觸材料，確保長期使用后接觸電阻變化較小。產(chǎn)品具有12檔可調(diào)阻值范圍，覆蓋0.001Ω至10Ω的低阻值區(qū)間，并包含3檔盲測功能，方便進行教學演示和學生實驗操作。電阻支座采用高絕緣材料，具有良好的電氣絕緣性能。34
產(chǎn)品功能
該電阻箱主要用于直流電路中作為精密可調(diào)電阻使用，也可作為已知電阻值標準。四端結構設計使其特別適合測量低阻值電阻，能夠滿足各類電學實驗中對低阻值測量的需求。產(chǎn)品結構緊湊，操作簡便，通過旋轉開關即可快速選擇所需電阻值。612
應用領域
FM-QR2電阻箱廣泛應用于高等院校物理實驗、電工電子實驗等教學場景，也可用于科研單位的精密測量工作。產(chǎn)品能夠幫助學生理解四端測量法的原理，掌握低阻值測量的關鍵技術，是電學實驗教學的重要輔助工具。13
Product Overview
The FM-QR2 four-terminal resistance box is a low-resistance measurement device specially designed for experimental training. Its four-terminal structure effectively eliminates the influence of lead resistance and contact resistance on measurement results. This product is suitable for teaching experiments and scientific research testing, providing stable and reliable resistance value output.24
Technical Features
The FM-QR2 resistance box adopts precision resistance components and high-quality contact materials to ensure minimal change in contact resistance after long-term use. It features 12 adjustable resistance ranges covering low resistance values from 0.001Ω to 10Ω, including 3 blind test positions for teaching demonstrations and student experiments. The resistance support uses high-insulation materials with excellent electrical insulation performance.36
Functional Description
This resistance box is mainly used as a precision adjustable resistor in DC circuits and can also serve as a known resistance standard. The four-terminal design makes it particularly suitable for measuring low resistance values, meeting various requirements in electrical experiments. With compact structure and simple operation, users can quickly select the desired resistance value by rotating the switch.1216
Application Fields
The FM-QR2 resistance box is widely used in physics experiments at universities and colleges, as well as in electrical and electronic experiments. It can also be used for precision measurement work in scientific research institutions. This product helps students understand the principle of four-terminal measurement method and master key techniques for low resistance measurement, making it an important auxiliary tool for electrical experiment teaching.13
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被 測 電 阻 箱( 用于實驗實訓 )
|
|
3-58
|
FM—QR1
|
1
|
被測(二端)電阻箱
|
中阻，21檔20Ω—5.6MΩ,含盲測5檔
|
2
|
600
|
|
3-59
|
FM—QR2
|
1
|
被測(四端)電阻箱
|
低阻, 12檔0.001—10Ω，含盲測3檔
|
2
|
700
|
|
3-60
|
FM—QR3
|
1
|
被測(二端)電阻箱
|
高阻，5檔10M-10GΩ。
|
10
|
500
|
|
3-61
|
CMP-RD
|
|
被測電阻/二級管盒
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中阻3只，二極管2只，用于教學
|
5
|
220
|
|
3-62
|
CMP-EL
|
|
被測電子元件盒
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晶體管、集成塊等，用于教學
|
|
220
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