测长仪|JDY-2
本仪器主要用于各种圆柱形、球形、平行平面等精密零件的外形，内孔尺寸的直接测量和比较测量，亦可进行内外螺纹中径等特殊测量，是各级计量室中的基本长度计量仪器之一。
It is one of the basic length-measuring instruments for metrological departments. It is applicable for both direct and comparative measurements of outer and inner dimensions of workpieces such as parallel planes, spheres, cylinders and bores. By using various accessories, it can be used for special measurements, such as pitches of male threads and female threads.
测长仪|JDY-2技术参数：
Measuring range 内尺寸测量 Inner measurement 1-200 mm 外螺纹测量 Male thread ≤180 mm 内螺纹测量 Female thread 16-140 mm
直接测量范围
Direct meas.range
0-100mm
读数显微镜分度值
Reading microscope grad.
1μm 仪器误差
Instrument error外尺寸测量 for ext.meas. ±(1+L/200)μm 内尺寸测量 for int.meas.±(1.5+L/200)μm
Indication stability
Dimensions
95×39×49 cm
Weight
85 kg
标准配件
Standard attachments
内测装置Internal measurement device
电眼装置Magic eye device
标准环规Standard ring gauge
外螺纹测量装置Male thread measuring device
内螺纹测量装置Female thread measuring device
各种测头测帽Variety of measuring heads and contact tips
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