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本公司要主要有：
投影仪、硬度计、粗糙度仪、金相分析设备、涂镀层测厚仪、影像测量仪、工具显微镜、量具卡尺等
SB2020精密十进位电容箱
SB2020精密十进位电容箱合用场合-> Suitable Situation ->
适用于各计量、科研与生产部门作精密电容标准。
It is suitable to be used as precise capacitances for metrology units, research institutes, and manufacturers.
SB2020精密十进位电容箱详细指标-> Detail specification->
主要技术指标 Use and characteristics：
1． 电容量范围Capacitance range：100pF~111.1111uF;
2． zui小步进值Minimum step value：100pF六位十进制 100pF 6 bit decade;
3． zui大允许误差Maximum permissible error：±（5×10-4C+0.05 p F）;
4． 工作频率Working frequency: 100F~1.0μF：1000Hz ，1μF~100μF：100Hz;
5． 温度系数Temperature coefficient: ±5×10-5/℃.
SB2020精密十进位电容箱技术规格-> Technical specification->
SB2020精密十进位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，通过开关将各只电容器连接而成。
SB2020 Precision Decade Capacitance Box is made of import materials and precise standar 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, and the capacitances are stable and reliable. All capacitances are connected with special switches, and the box connects instruments with its BNC plugs.
SB2020精密十进位电容箱
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