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- 合用场合-> Suitable Situation->
通过专用开关将各只电容器连接而成。适用于各计量、科研与生产部门作精密电容标准。
Suitable to be used as precise capacitance for metrology units, research institutes, and manufacturers. Capacitances are connected with special switches, and the box connects instruments with its BNC plugs.
详细指标->
1． 电容量范围Capacitance range：1 nF~1111.11uF;
Capacitance range：1 nF~1111.11uF;
2． 最小步进值Minimum step value：1 nF六位十进制 1 nF 6 bit decade；
Minimum step value: 1 nF 6 bit decimal;
3． 最大允许误差Maximum permissible error：±0.2%；
Maximum permissible error：±0.2%；
4． 工作频率Working frequency: 1nF~1.0μF：1000Hz ，1μF~1000μF：100Hz；
Working frequency: 1nF~1.0μF：1000Hz ，1μF~1000μF：100Hz；
5． 温度系数Temperature coefficient: ±(2×10-4/℃)
Temperature coefficient: ±(2×10-4/℃)
技术规格-> Technical Specification->
SB2013标准大电容箱采用进口材料、专门设计、特殊工艺加工制作的精密电容器，并经过老化处理、严格筛选，通过专用开关将各只电容器 连接而成。
SB2013 Standard Capacitance Box is made of import materials and precise standard capacitors, which are specially designed and processed with special technologies. It is also made of all kinds of capacitances, which are processed with aging technology, strictly chosen from large quantities of capacitances. All capacitances are connected with special switches, and the box connects instruments with its BNC plugs.
