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为了便于开展电离真空计的绝对检定和付标准电离真空计的相对检定,我们研制了单级玻璃小孔校准装置。小孔片是由玻璃片打孔后再经研磨抛光而制成的,小孔的边缘呈刀口状,刀口厚度为0.5毫米,小孔片被安装在两个玻璃球泡相切的位置上。被校规管被接在校准室球泡的赤道位置上。参考
In order to facilitate the absolute calibration of the ionization vacuum gauge and the relative calibration of the standard ionization vacuum gauge, we developed a single-stage glass cell calibration device. The hole is made by perforating the glass and then grinding and polishing. The edge of the hole is in the form of a knife-edge with a thickness of 0.5 mm. The hole-hole piece is installed in a tangent position of two glass bulbs. Be regulated by the school was connected to the calibration chamber bulb at the equator. reference