| 摘要 |
The invention relates to an active cell for measuring electrical resistivity of nanostructured polymer composites. According to the invention, the active cell comprises a support (1) provided with a recess in which some material samples (4) are inserted, said samples being pressed onto some electric contacts (6) by means of a plate (2), where the active cell comprises a measuring amplifier module (7) which can be connected by means of some terminals (9, 10, 13) to a constant current source (14) and by means of other terminals (11, 12) to an electronic voltmeter (20), the active cell having an inbuilt supply source and being provided with a metal case (8) for shielding purposes. |
