PLASTIC SENSING ELEMENT AND METHOD OF OBTAINING SAME

摘要

A sensor for recording positional changes, movement speeds or rotational speed of an encoder comprises a first plastic housing part (44) containing electrical components (38-43,45) and a positioning member (47) which is fused or bonded to a second housing part (46) enclosing the first housing. In a process for manufacturing the sensor: (a) the first housing part (44) is injected around the electrical components (38-43, 45) or the latter are inserted in a pre-moulded first housing part; (b) the first housing part is located in a mould using the positioning member; (c) the second housing part is injected around the first housing part.