A base plate and/or a sensor assembly part for an ostomy appliance is disclosed, the base plate and/or the sensor assembly part comprising a first adhesive layer with a proximal side configured for attachment of the base plate and/or the sensor assembly part to the skin surface of a user, the first adhesive layer having a stomal opening with a center point; and a plurality of electrodes including a ground electrode, a first electrode, and a second electrode, the ground electrode comprising a ground connection part, the first electrode comprising a first connection part, and the second electrode comprising a second connection part; wherein the ground electrode forms a ground for the first electrode and the second electrode.

A base plate and/or a sensor assembly part for an ostomy appliance is disclosed, the base plate and/or the sensor assembly part comprising a first adhesive layer with a proximal side configured for attachment of the base plate and/or the sensor assembly part to the skin surface of a user, the first adhesive layer having a stomal opening with a center point; and a plurality of electrodes including a ground electrode, a first electrode, and a second electrode, the ground electrode comprising a ground connection part, the first electrode comprising a first connection part, and the second electrode comprising a second connection part; wherein the ground electrode forms a ground for the first electrode and the second electrode.

An exemplary method of indicating a condition of grout within a post-tensioned tendon involves positioning a magnet and a metallic sensing plate in close proximity to an outer surface of the post-tensioned tendon; rotating the magnet and the metallic sensing plate around the outer surface of the post-tensioned tendon; measuring an amount of magnetic forces applied to the magnet during rotation of the magnet around the post-tensioned tendon; measuring an impedance between the metallic sensing plate and metallic strands within the post-tensioned tendon during rotation of the metallic sensing plate around the post-tensioned tendon; and generating an image of a cross-section of the post-tensioned tendon indicating one or more grout conditions in spatial proximity to the metallic strands within the post-tensioned tendon based on measurement data using the magnet and the metallic sensing plate.

An exemplary method of indicating a condition of grout within a post-tensioned tendon involves positioning a magnet and a metallic sensing plate in close proximity to an outer surface of the post-tensioned tendon; rotating the magnet and the metallic sensing plate around the outer surface of the post-tensioned tendon; measuring an amount of magnetic forces applied to the magnet during rotation of the magnet around the post-tensioned tendon; measuring an impedance between the metallic sensing plate and metallic strands within the post-tensioned tendon during rotation of the metallic sensing plate around the post-tensioned tendon; and generating an image of a cross-section of the post-tensioned tendon indicating one or more grout conditions in spatial proximity to the metallic strands within the post-tensioned tendon based on measurement data using the magnet and the metallic sensing plate.

A device for detecting wear of a wear member composed of electrically resistive material. The wear member comprises at least two electrodes separated from each other, where each electrode overlies, or is embedded in, an outer surface of the electrically resistive material. One of the electrodes is connected to a resistor at a measurement node to form a resistive voltage divider. A voltage measurement device measures a change in voltage at the measurement node, where the change is voltage is indicative of the degree of removal of resistive material from a face of the wear member and where the change in voltage is continuously variable and not limited to discrete wear levels.

A method for inspecting a welding defect of the present invention includes: a threshold resistance setting step (S100) of measuring a resistance of a welded portion of a sample group and deriving a threshold resistance value which becomes an evaluation standard of a weak welding; a resistance measuring step (S200) of measuring a resistance value of a welded portion to be inspected; and a step (S300) of determining as a weak welding if the resistance value measured in the resistance measuring step exceeds the threshold resistance value, wherein the threshold resistance setting step (S100) and the resistance measuring step (S200) include measuring a resistance using a microresistance measuring instrument having a resolution of nanoohm to microohm units.

The welding defect inspection method of the present invention shows excellent detection power for the welding defect by a weak welding.

A method for inspecting a welding defect of the present invention includes: a threshold resistance setting step (S100) of measuring a resistance of a welded portion of a sample group and deriving a threshold resistance value which becomes an evaluation standard of a weak welding; a resistance measuring step (S200) of measuring a resistance value of a welded portion to be inspected; and a step (S300) of determining as a weak welding if the resistance value measured in the resistance measuring step exceeds the threshold resistance value, wherein the threshold resistance setting step (S100) and the resistance measuring step (S200) include measuring a resistance using a microresistance measuring instrument having a resolution of nanoohm to microohm units.

The welding defect inspection method of the present invention shows excellent detection power for the welding defect by a weak welding.

Disclosed are state monitoring method and system for a heating device including a conductive path that electrically series-connects heating elements. The method includes obtaining a potential difference of a conductive path portion including at least one of the heating elements, obtaining monitoring information used to monitor a state of the heating elements, and determining occurrence of an anomaly in the conductive path portion based on the obtained monitoring information. The step of obtaining the potential difference includes obtaining a first potential difference of a first conductive path portion and obtaining a second potential difference of a second conductive path portion that differs from the first conductive path portion. The monitoring information includes comparison information obtained by comparing potential differences including the first potential difference and the second potential difference.

Disclosed are state monitoring method and system for a heating device including a conductive path that electrically series-connects heating elements. The method includes obtaining a potential difference of a conductive path portion including at least one of the heating elements, obtaining monitoring information used to monitor a state of the heating elements, and determining occurrence of an anomaly in the conductive path portion based on the obtained monitoring information. The step of obtaining the potential difference includes obtaining a first potential difference of a first conductive path portion and obtaining a second potential difference of a second conductive path portion that differs from the first conductive path portion. The monitoring information includes comparison information obtained by comparing potential differences including the first potential difference and the second potential difference.

The present invention provides an apparatus for inspecting a welding state in a welded portion for an electronic or mechanical coupling in a lithium secondary battery, the apparatus including: a measuring unit configured to obtain data for deriving a resistance value of the welded portion by allowing a resistance measuring probe to contact the welded portion; and a controller configured to communicate with the measuring unit, determine the resistance value of the welded portion by receiving the data obtained from the measuring unit, and determine whether a weak welding was performed by comparing the determined resistance value with a threshold resistance value, in which the measuring unit is configured to allow the resistance measuring probe to contact one end and the other end of the welded portion.