測試夾具附件Model 8009 Resistivity Chamber: The Model 8009 is a guarded test fixture for mea sur ing volume and surface resistivities. It assures good electrostatic shielding and high insulation resist-ance up to 1100V. The 8009 is designed for safe operation with the 6517A or 6517B. Opening the lid of the 8009 au to mat i cal ly turns off the 6517A or 6517B voltage source. The 8009 ac com-mo dates sheet samples from 64mm to 102mm(2½ to 4 in) in diameter and up to 3.2mm ( 1 ⁄ 8in) thick. It maintains good sample contact with uniform pressure (from 6 to 10 lbs depending on thickness) on smooth parallel sam ples.With the front panel switch on the 8009, toggle between volume and surface re sis tiv i ty, with the 6517A or 6517B configured to calculate and display the appropriate result automatically. The 8009 permits direct measurement of volume resistivity up to 10 18 W -cm (on samples 0.1cm thick) and surface resistivity up to 10 17 W /square,in accordance with ASTM pro cedures.

測試夾具附件