| 摘要 |
<p>The invention concerns a sensor device for registering voltage drops on corrosion exposed structures, like pipes and supports in offshore environments. Sensors are coupled to a surface area, to which area a voltage is supplied by means of electrodes (24, 25), causing an excitation current in the area. Cables are connected to said sensors which are arranged in a matrix defining measurement points with defined distances, to transmit signals related to the voltage distribution in the surface area as a basis for determining material thickness and/or structural defects (erosion, corrosion etc.) in the measurement area. A support means (14, 52) is provided to hold a row of contact members (37, 54) such as contact pins, which are held in engagement with the metal of the measured material in the measurement area, wherein from each contact member an electric conductor (20, 52) is led to a cable terminal (19, 53). Particularly, the support means (14, 52) is pliable or jointed, so that the contact members (37, 54) can be brought into engagement with curved surfaces and other non-flat surfaces.</p> |
