Abstract: A measured signal, such as a high-speed digital pulse, transmitted through a system is corrected. The measured signal is sampled to a sampled signal sequence, and a signal series is provided as a plurality of the sampled signal sequences put together successively. The signal series is windowed with a window function, and a corrected measured signal is recalculated from the windowed signal series using information about the frequency-dependency of the system.

Abstract: A method is provided for rotationally attaching a connection fitting with an opposing surface by screwing the fitting into the opposing surface by threads on an outer surface of the fitting body. The connection fitting is formed by at least one seal manufactured together with the fitting body in an injection molding process to form a multi-component plastic part in which the fitting body is made of a hard plastic component and the seal is made of a soft plastic component, wherein the components are of a kind which do not adhere to one another. The seal is secured in an axial direction on the fitting body in a form-fit manner, but during the rotational attachment step the seal is rotatable relative to the fitting body in a peripheral direction.

Abstract: A connection fitting (1), for example a blind plug, valve body, pipe connection piece or the like, with a fitting body (2, 8) and a seal (4) has the form of a multi-component plastic part, in which the two plastic components are plastics that are incompatible with each other, so that the seal (4) can rotate relative to the fitting body (2), in particular when the seal contacts an uneven or fissured opposing surface by which it could be damaged if it continued to be turned when tightening or screwing in the connection fitting (1) relative to this opposing surface.

Abstract: This invention relates to devices in the field of optical communication networks and measurement devices and to an apparatus for adjustment of a first optical device relative to a second optical device. The apparatus for adjustment can be used for example in attenuating devices, coupling devices and filtering devices. A precise and reproducible adjustment is achieved by an apparatus for adjustment of a first optical device relative to the position of a second optical device and includes first apparatus for fixing the first optical device, second apparatus for fixing the second optical device and further apparatus for fastening said first and said second apparatus' planes parallel to each other.

Abstract: By means of the invention, the pressure in a cavity can be measured, without ever reducing the gas flow to zero. This is achieved by bleeding an intermediate vessel slightly with its inlet valve closed and its outlet valve open and then being able to extrapolate from the pressure decrease whether the desired pressure has been reached. If the result of the extrapolation indicates that the desired pressure has not been reached, then pumping is repeated, measuring is repeated and so on and so forth until the extrapolation indicates that the desired pressure has been reached. Thus extrapolations are made instead of allowing the intermediate vessel to empty completely.