Methods of balancing a workpiece, in which the workpiece is rotated about an axis of rotation. The forces and/or torques that result from an unbalance of the workpiece during the rotation of the workpiece are measured, and material is removed from the workpiece to reduce the unbalance. The method includes removal of material from the rotating workpiece during measuring or as the workpiece is continuously rotated between measuring and material removal.

A device is disclosed including a substrate and a floating blinded infrared detector and/or a shunted blinded infrared detector. The floating blinded infrared detector may include an infrared detector coupled to and thermally isolated from the substrate; and a blocking structure disposed above the infrared detector to block external thermal radiation from being received by the infrared detector; and wherein the blocking structure comprises a plurality of openings. The shunted blinded infrared detector may include an additional infrared detector coupled to the substrate; an additional blocking structure disposed above the infrared detector to block external thermal radiation from being received by the additional infrared detector; and a material that thermally couples the additional infrared detector to the substrate and the additional blocking structure. Methods for using and forming the device are also disclosed.

A plating method includes holding a substrate with a substrate holder while bringing a sealing member into pressure contact with a peripheral portion of the substrate to form an enclosed internal space in the substrate holder; performing a first-stage leakage test of the substrate holder by producing a vacuum in the internal space and checking whether pressure in the internal space reaches a predetermined vacuum pressure within a certain period of time; and if the substrate holder has passed the first-stage leakage test, performing a second-stage leakage test of the substrate holder by closing off the internal space after producing the vacuum therein and checking whether a change in the pressure in the internal space reaches a predetermined value within a certain period of time.

A plating method includes holding a substrate with a substrate holder while bringing a sealing member into pressure contact with a peripheral portion of the substrate to form an enclosed internal space in the substrate holder; performing a first-stage leakage test of the substrate holder by producing a vacuum in the internal space and checking whether pressure in the internal space reaches a predetermined vacuum pressure within a certain period of time; and if the substrate holder has passed the first-stage leakage test, performing a second-stage leakage test of the substrate holder by closing off the internal space after producing the vacuum therein and checking whether a change in the pressure in the internal space reaches a predetermined value within a certain period of time.

The invention relates to a testing device for checking the leak tightness of containers (5), comprising a holding unit (3) for holding at least one container (5), which holding unit has a first holding part (31) and a second holding part (32), wherein the holding unit (3) is divided into the first and second holding parts (31, 32) in the direction of a longitudinal axis (L) of the holding unit (3) and wherein a pivot shaft (4) for the pivoting of at least one holding part is arranged on the first and/or second holding part (31, 32).

Systems and methods for leak detection of aircraft doors. One embodiment is an apparatus for leak testing a seal between an aircraft door and a fuselage of an aircraft. The apparatus includes a structural frame that includes a suction cup configured to suction an outer surface of the aircraft door. The structural frame further includes legs to extend in length to push the structural frame away from the fuselage and cause the suction cup to pull the aircraft door toward an outside of the aircraft to tighten the seal between the aircraft door and the fuselage of the aircraft.

The present invention relates to instrumentation for underwater use powered by means of a battery and provided with a pressure sensor capable of periodically detecting pressure values inside the main body of the instrumentation. The present invention also relates to a method for detecting possible pressure drops inside the main body of the instrumentation over time. The instrumentation of the present invention enables carrying out efficient and inexpensive self-diagnosis of the pressure inside the body of the device, every time the battery is changed or also during manufacture of the instrument.

The present invention relates to instrumentation for underwater use powered by means of a battery and provided with a pressure sensor capable of periodically detecting pressure values inside the main body of the instrumentation. The present invention also relates to a method for detecting possible pressure drops inside the main body of the instrumentation over time. The instrumentation of the present invention enables carrying out efficient and inexpensive self-diagnosis of the pressure inside the body of the device, every time the battery is changed or also during manufacture of the instrument.

A leak detection system for use in a vacuum sterilization chamber having a plurality of piping sections that are connected to the sterilization chamber through openings along an inner surface of the sterilization chamber.

A plating method includes holding a substrate with a substrate holder while bringing a sealing member into pressure contact with a peripheral portion of the substrate to form an enclosed internal space in the substrate holder; performing a first-stage leakage test of the substrate holder by producing a vacuum in the internal space and checking whether pressure in the internal space reaches a predetermined vacuum pressure within a certain period of time; and if the substrate holder has passed the first-stage leakage test, performing a second-stage leakage test of the substrate holder by closing off the internal space after producing the vacuum therein and checking whether a change in the pressure in the internal space reaches a predetermined value within a certain period of time.