Monitoring instrument

摘要

The invention comprises an apparatus comprising a water-proof housing assembly comprising a housing (20) and a display panel (10, 32), and incorporating an enclosure (30) containing electrical apparatus, wherein said display panel is formed from a clear material (16) encapsulating a visual display (12) and/or a light-source (34) and said apparatus is capable of operating in water at a pressure of at least 300 bar without ingress of water into the enclosure. The apparatus may be used as an instrument or a lighting unit in sub-sea environments. The invention comprises further a light-source attachment for a powered apparatus comprising a light source embedded within a block of clear material (16) and means for mounting said block on the powered apparatus such that a connector connects the light source to a power source within the powered apparatus.

主权项

1. An apparatus in the form of a monitoring instrument for monitoring ionizing radiation comprising a water-proof housing assembly comprising a housing and a display panel, and incorporating an enclosure containing electrical apparatus, the electrical apparatus being housed within said enclosure and the electrical apparatus comprising a radiation detector for monitoring ionizing radiation, a power source for said radiation detector, and a data processor/controller, wherein said display panel is formed from a clear material encapsulating a visual display, said visual display displays at least one status or measurement related to ionizing radiation which is monitored by the monitoring instrument,
wherein said apparatus is adapted for monitoring the proximity of a pipeline pig, said radiation detector is capable of detecting radiation emitted by a source of ionising radiation mounted on the pipeline pig, and said data processor determines the proximity of the pipeline pig from the radiation detected by the detector.