FM87-1教學(xué)用(高)電位差計(jì)
FM87-1教學(xué)用(高)電位差計(jì)產(chǎn)品介紹（中文）
FM87-1教學(xué)用(高)電位差計(jì)是一款專為高等院校、職業(yè)院校及中專學(xué)生設(shè)計(jì)的電磁學(xué)實(shí)驗(yàn)儀器，適用于物理、電子工程等專業(yè)的教學(xué)場景。該產(chǎn)品采用補(bǔ)償法原理設(shè)計(jì)，能夠?qū)崿F(xiàn)直流電壓的精確測量，測量范圍覆蓋0~1.700V，最小分度值達(dá)到1mV，滿足基礎(chǔ)教學(xué)實(shí)驗(yàn)對(duì)精度和穩(wěn)定性的需求。儀器內(nèi)置電子檢流計(jì)和可調(diào)電阻網(wǎng)絡(luò)，操作時(shí)通過調(diào)節(jié)旋鈕使電路達(dá)到平衡狀態(tài)，直觀展示電位差補(bǔ)償過程。采用一體化設(shè)計(jì)，集成工作電源（1.5V干電池與9V疊層電池供電），無需外接設(shè)備即可完成實(shí)驗(yàn)，便于實(shí)驗(yàn)室或課堂環(huán)境使用。外殼采用工程塑料材質(zhì)，尺寸為270×220×145mm，輕便耐用。特別設(shè)計(jì)的多量程檔位可適應(yīng)不同電壓范圍的測量需求，例如溫差電動(dòng)勢、電源電動(dòng)勢等實(shí)驗(yàn)項(xiàng)目。產(chǎn)品通過簡化操作流程和強(qiáng)化原理可視性，幫助學(xué)生理解基爾霍夫電壓定律及電勢差測量方法。4116
FM87-1 Teaching High-Precision Potentiometer (English)
The FM87-1 is a didactic potentiometer designed for electromagnetic experiments in universities, vocational schools, and technical institutes. Based on the null-balance (compensation) method, it enables precise DC voltage measurements with a range of 0-1.700V and 1mV resolution, ideal for demonstrating fundamental electrical principles. The unit features a built-in galvanometer and adjustable resistor network, allowing students to achieve circuit equilibrium through manual calibration—a process that visually illustrates voltage compensation dynamics. Self-contained power supply (4×1.5V AA batteries + 2×9V layered batteries) eliminates external dependencies, simplifying classroom deployment. Its compact design (270×220×145mm) with ergonomic controls accommodates diverse experimental scenarios such as thermocouple EMF measurements or internal resistance analysis of power sources. The multi-range selector enhances versatility by adapting to varying signal amplitudes while maintaining measurement clarity. Engineered for educational efficacy, the FM87-1 emphasizes hands-on learning with intuitive operation, helping students grasp Kirchhoff s laws and potential difference concepts through experiential training. Robust construction ensures long-term reliability in frequent-use academic environments. 111215
產(chǎn)品技術(shù)特點(diǎn)補(bǔ)充說明
該電位差計(jì)采用串聯(lián)代換式電路結(jié)構(gòu)，工作電流穩(wěn)定在5.5mA，通過內(nèi)部基準(zhǔn)源和低漂移運(yùn)算放大器提升測量一致性。電子檢流計(jì)靈敏度可自動(dòng)適配不同量程，電流常數(shù)不超過1×10A/mm，確保微小信號(hào)檢測能力。產(chǎn)品內(nèi)置電池倉設(shè)計(jì)優(yōu)化了便攜性，同時(shí)面板標(biāo)注清晰的功能區(qū)域（如調(diào)零旋鈕、量程開關(guān)、補(bǔ)償按鈕）降低了學(xué)生操作門檻。溫度適應(yīng)性方面，儀器在10-30℃環(huán)境下能保持0.2%的示值準(zhǔn)確度，滿足常規(guī)實(shí)驗(yàn)室條件需求。典型應(yīng)用包括但不限于：驗(yàn)證歐姆定律、校準(zhǔn)毫伏表、研究熱電偶特性等課程實(shí)驗(yàn)，配套實(shí)驗(yàn)指導(dǎo)手冊(cè)可輔助教師開展系統(tǒng)性教學(xué)。111228
FM87-1教學(xué)用(高)電位差計(jì)
的詳細(xì)介紹
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2-22
|
87-1
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教學(xué)用(高)電位差計(jì)
|
0～1.700V
|
1mV
|
0.2
|
池
|
830
1080
|
|
2-25
|
FM87-1
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環(huán)
|
|
2-26
|
FMA
|
學(xué)生型(高)電位差計(jì)學(xué)生型(高)電位差計(jì)
|
×0.1檔: 0～21.10mV
×1檔: 0～211.0mV
×10檔: 0～2.110V
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1mV
100μV
10μV
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0.2
|
池
|
1180
1930
|
|
2-27
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FMFA
|
環(huán)
|
|
2-28
|
FMC
|
組合式直流(高)電位差計(jì)
|
0～2.311110V
|
1μV
|
0.01
|
環(huán)
|
4680
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