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QJ23直流單臂電橋

發布日期：2025-01-05
訪問次數：950
地址：上海寶山

QJ23直流單臂電橋。按照中华人民共和国国家标准GB3930—83《测量电阻用直流电桥》所规定的有关技术要求制造，具有内附检流计和电池盒，整个测量机构装在金属外壳内,轻巧且便于携带,用于测量1Ω～11.11MΩ范围内的直流电阻，适宜在实验室及现场使用

訂購留言

QJ23直流單臂電橋。按照中華人民共和國國家標准GB3930—83《測量電阻用直流電橋》所規定的有關技術要求制造。

一、用途

QJ23a型直流電阻電橋，具有內附檢流計和電池盒，整個測量機構裝在金屬外殼內,輕巧且便于攜帶,用于測量1Ω～11.11MΩ範圍內的直流電阻，適宜在實驗室及現場使用。

QJ23直流單臂電橋

二、主要技术指标

1、准确度等级：0.1级

2、仪器使用条件：

a、溫度參考值：20±1.5℃

b、溫度標稱使用範圍：5～35℃

c、濕度參考值：40%～60%

d、濕度標稱使用範圍：25%～75%

3、总有效量程：1Ω～11110000Ω

4、允许误差极限为：

R_N

Elim=±a%（—— +X）

式中：a——等級指數

X——標度盤示值，Ω

R_N——基准值，Ω

5、电桥各量程、有效量程、等級指數、基准值及電源電壓见下表

量程倍率	有效量程	等級指數（%）	電源電壓	基准值R_N （Ω）
×0.001	1Ω—11.11Ω	0.5	3V	10
×0.01	10Ω—111.1Ω	0.2		10²
×0.1	100Ω—1111Ω	0.1		10³
×1	1KΩ—11.11KΩ		6V	10⁴
×10	10KΩ—111.1KΩ		6V	10⁵
×100	100KΩ—1111KΩ	0.2	15V	10⁶
×1000	1MΩ—11.11MΩ	0.5	15V	10⁷

6、内附检流计具有足够的灵敏度，在各量限内，当读数盘变化a%，检流计指计偏离零位不小于1mm，如要提高测量精度可外接检流计。
7、电桥的工作電源为3V、6V、15V三档（内附工作電源为1.5V[R20]1号电池二节串联），测量时可根据表一规定选择工作電源。内附集成电路检流计工作電源为9V（6F22迭层电池一节）。
8、仪器外形尺寸：230mm×200mm×120mm
9、仪器重量：<3kg

上一篇：QJ42攜帶式直流雙臂電橋

下一篇：UJ34E直流電位差計

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