| 摘要 |
<p>A filter comprising a casing with an inlet space for liquid to be filtered and an outlet space for filtered liquid; a substantially cylindrical filter element of the disposable type, which is removably placed within the casing to function therein as a liquid permeable partition between the inlet space and the outlet space; a unique information containing micro circuit provided in said filter element, adapted to function as an identification label and cooperating with a receiver element provided in the casing, so as to provide for a periodical or continuous exchange of information between the micro circuit and the receiver element. According to the invention the micro circuit is embedded, at a circumferential location, in a sealing ring provided at a terminal edge of the cylindrical filter element, by means of which sealing ring the filter element sealingly engages an annular seat between the inlet space and the outlet space. The receiver element is provided in said seat and comprises a flat annular coil, the average diameter of which corresponds with that of the sealing ring.</p> |
