| 摘要 |
A detection unit comprises a support element (1) and at least one module (2) connectable to the support element (1), each module (2) comprising a housing and an infrared detector fitted therein. When connected each module (2) has a defined circumferential position relative to the support element (1). Preferably, the detection unit is designed for fitting three modules (2) which circumferentially enclose the support element (1), as well as a further module (3). <IMAGE> |
