Abstract: A corrosion sensor is described. The corrosion sensor comprises a substrate 10 and a patterned conductive layer provided on the substrate 10, wherein the conductive layer defines: a common terminal; a set of terminals, including a first terminal and a second terminal; and a set of sensing elements, including a first sensing element and a second sensing element; wherein respective sensing elements of the set thereof are electrically coupled to the common terminal and to respective terminals of the set thereof, such that the respective terminals of the set thereof are specific to the respective sensing elements of the set thereof.

Abstract: Specimens for evaluating corrosion protection of substrates due, at least in part, to coatings applied thereupon are described. A specimen (1) comprises: a first coating (10), comprising a first set of layers (11) including a first layer (11A), on a first substrate (12); and a first set of perforations (100), including a first perforation (100A) and a second perforation (100B), in the first coating (10), wherein the first perforation (100A) has a first depth D1 through the first coating (10) and a first dimension W1 transverse to the first depth, wherein the second perforation (100B) has a second depth D2 through the first coating (10) and a second dimension transverse to the second depth D2 and wherein the first dimension W1 and the second dimension W2 are different.

Abstract: A method of manufacturing a sensor (1), such as a corrosion sensor, a mask including a series of masking elements (21, 22, 23) for masking a corresponding series of sensing elements (12, 13, 14), a sensing element having such a mask and a sensor are provided. The sensor (1) includes a number of metallic strips (12, 13, 14) mounted on a non-conducting substrate (9) and a module (3) for forming electrical connections to the strips whereby to enable communication between the strips (12, 13, 14) and monitoring equipment for the sensor (1). The module includes a number of wire connections (15, 16, 17, 18) and the method includes the steps of encapsulating the wire connections within a flexible chemical and heat resistant sealing compound and subsequently encapsulating the flexible sealing compound within a second sealing compound by an injection molding process. The sensing elements (12, 13, 14) are covered by the masking elements (21, 22, 23) prior painting the sensor (1) with a corrosion-inhibiting paint.

Abstract: A sensor (1) and a method of manufacturing the sensor (1), the sensor (1) including a number of metallic strips (5,6,7) mounted on a non-conducting substrate (4) and a module (3) for forming electrical connections to the strips (5,6,7) whereby to enable communication between the strips (5,6,7) and monitoring equipment for the sensor (4), the module including a number of wire connections (16), the method including the steps of encapsulating the wire connections within a flexible chemical and heat resistant sealing compound, and subsequently, encapsulating the flexible sealing compound within a second sealing compound (34) by an injection molding process.

Abstract: A method of manufacturing a sensor (1), such as a corrosion sensor, a mask including a series of masking elements (21, 22, 23) for masking a corresponding series of sensing elements (12, 13, 14), a sensing element having such a mask and a sensor are provided. The sensor (1) includes a number of metallic strips (12, 13, 14) mounted on a non-conducting substrate (9) and a module (3) for forming electrical connections to the strips whereby to enable communication between the strips (12, 13, 14) and monitoring equipment for the sensor (1). The module includes a number of wire connections (15, 16, 17, 18) and the method includes the steps of encapsulating the wire connections within a flexible chemical and heat resistant sealing compound and subsequently encapsulating the flexible sealing compound within a second sealing compound by an injection moulding process. The sensing elements (12, 13, 14) are covered by the masking elements (21, 22, 23) prior painting the sensor (1) with a corrosion-inhibiting paint.

Abstract: A corrosion sensor for detecting the action of corrosive media on a metallic component when the sensor is mounted in the vicinity of the metallic component in use is disclosed. The sensor includes an electrically conducting corrodible element mounted on a non conducting substrate, the corrodible element being covered with a protective coating such as paint adapted to protect the corrodible element from corrosive media. The protective coating defines a temporary feature such as a paint defect which extends across the corrodible element and is designed to permit attack on the corrodible element by corrosive media after a predetermined period of time. The corrodible element comprises a pair of spaced tracks extending generally in a longitudinal direction and a series of corrodible tracks, each corrodible track extending generally in a lateral direction and forming an electrical connection between the spaced tracks.

Abstract: A sensor (1) and a method of manufacturing the sensor (1), the sensor (1) including a number of metallic strips (5,6,7) mounted on a non-conducting substrate (4) and a module (3) for forming electrical connections to the strips (5,6,7) whereby to enable communication between the strips (5,6,7) and monitoring equipment for the sensor (4), the module including a number of wire connections (16), the method including the steps of encapsulating the wire connections within a flexible chemical and heat resistant sealing compound, and subsequently, encapsulating the flexible sealing compound within a second sealing compound (34) by an injection moulding process.

Abstract: A corrosion sensor for detecting the action of corrosive media on a metallic component when the sensor is mounted in the vicinity of the metallic component in use is disclosed. The sensor includes an electrically conducting corrodible element mounted on a non conducting substrate, the corrodible element being covered with a protective coating such as paint adapted to protect the corrodible element from corrosive media. The protective coating defines a temporary feature such as a paint defect which extends across the corrodible element and is designed to permit attack on the corrodible element by corrosive media after a predetermined period of time. The corrodible element comprises a pair of spaced tracks extending generally in a longitudinal direction and a series of corrodible tracks, each corrodible track extending generally in a lateral direction and forming an electrical connection between the spaced tracks.