Numerical Solution of a Direct 3d Electrostatic Resistivity Test of Green-state Metal Powder Compacts
نویسنده
چکیده
Current research efforts have concentrated on developing an instrumentation approach to test green-state powder metal (PIM) compacts by exploiting the conductivity or resistivity variations in the samples under test [1]. A novel multi-pin sensor is used to inject current in various directions through an array of outer contacts, and a matrix of 7 by 7 pointed needles record the voltage response of the PIM sample. Initial tests with production samples as well as a few controlled samples have shown good sensitivity and the ability to detect flaws of various sizes [6].
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