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ZHY-1型直流恒流源

發布日期：2025-01-05
訪問次數：815
地址：上海寶山

ZHY-1型直流恒流源：恒流調節細度0.01mA。電流調節旋鈕有鎖定功能。從“短路“到“測量“，電流上升時間約2s。過壓保護點&amp;#177;4V。過流保護120mA。

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ZHY-1型直流恒流源

一、性能特點

1、恒流調節細度0.01mA。

2、電流調節旋鈕有鎖定功能。

3、從“短路”到“測量”，電流上升時間約2s。

4、過壓保護點±4V。

5、過流保護120mA。

6、有誤操作指示燈。

7、有克服瞬態浪湧過電壓的措施。

8、整機爲線性電源，無開關電源噪聲。

9、本儀器支持不關機情況下更換待測器件，且具有誤操作保護功能。

ZHY-1型直流恒流源

二、技術指標

1、輸出電流0-100mA。

2、輸出電壓0-3V。

3、輸出電流穩定度爲2×10-4/2分鍾。

4、儀器指示電流精度爲0.1%×讀數+0.02%×量程。

5、外形尺寸：220×100×310mm 重量：3.8kg

是上海旺徐電氣有限公司專業爲您生産銷售。

标准电阻器(standard resistor )用于保存电磁单位制中电阻单位欧姆的量值的标准量具。其特点是电阻值非常准确和稳定，常用作计量标准，或装在电测量仪器内作为标准电阻元件。标准电阻器通常为10进制。其阻值范围一般为 1毫欧至 100千欧，特殊情况下也可做成更小或更大的量值，或非十进制量值。标准电阻器的等级一般由各国计量部门制定的国家计量检定系统表和有关的国家标准所规定。中华人民共和国规定，作为计量标准用的标准电阻器，按其在计量检定系统表中的位置分为计量基准、计量标准和工作计量器具三档。按计量检定系统表的规定，较低档标准电阻器的量值由较高档传递。直流电阻基准是高档的标准电阻器，保存在国家计量技术机构，用于复现和保存法定电阻单位。为了提高电阻基准量值的稳定性，通常用多个同一标称值的标准电阻器组成基准组，取其电阻值的平均值作为所保存的该标称值的电阻量值。电阻基准组的年变化为 10-8量级。其电阻值的值需用测定的方法来确定(见电单位的测定)。测定的不确定度(参见电磁测量误差)为10-7量级。

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