Abstract: A filter system with infinite impulse response is provided. The filter system has a transfer function that includes at least one pair of first order polynomial fractions. In one embodiment, the poles and/or the zeros of the pair of polynomial fractions are complex conjugates, respectively.

Abstract: A method for determining a trigger level for a periodic analog signal in a digital signal processing system is provided. The method reduces output jitter as much as possible and avoids false trigger events. To this end, the method includes measuring the minimum and maximum values of the signal in a predetermined time, defining a plurality of potential trigger values between the minimum and maximum values, assigning to the respective potential trigger value a jitter value characteristic for the jitter created by processing the signal with the potential trigger value, and determining the optimal trigger level based on the lowest jitter value.

Abstract: There is described a method for operating an automation system which comprises at least two measuring modules, each connected to a higher order processing unit in order to communicate therewith. The higher order processing unit is informed of an event that is recorded by one of the at least two measuring modules. The processing unit then informs any available measuring module of the event.

Abstract: The invention relates to a method for monitoring the dynamic behavior, in particular of the oscillating behavior of a rotating shaft, the oscillation being detected by at least two sensors at defined different spatial position, the oscillating behavior in at least one preferred direction being determined from the oscillation. The invention also relates to a device for monitoring oscillating behavior in a rotary machine with rotable parts, having at least two sensors, a shaft and a computing unit, characterized in that the at least two sensors are positioned in a defined spatial position outside the shaft, detect measurement variables which characterize the oscillations and are connected to a computing unit for the transfer of data. The invention also relates to a gas turbine and a steam turbine that use a method and a device as per the invention.

Abstract: There is described a monitoring system, especially a vibration monitoring system, and a method for operating said system. The system is finely adjustable between purely single-channel to one fault tolerant and limited two fault tolerant without the necessity of additional special hardware components.

Abstract: The invention relates to a method for monitoring the dynamic behavior, in particular of the oscillating behavior of a rotating shaft, the oscillation being detected by at least two sensors at defined different spatial position, the oscillating behavior in at least one preferred direction being determined from the oscillation. The invention also relates to a device for monitoring oscillating behavior in a rotary machine with rotatable parts, having at least two sensors, a shaft and a computing unit, characterized in that the at least two sensors are positioned in a defined spatial position outside the shaft, detect measurement variables which characterize the oscillations and are connected to a computing unit for the transfer of data. The invention also relates to a gas turbine and a steam turbine that use a method and a device as per the invention.

Abstract: There is described a method for operating an automation system which comprises at least two measuring modules, each connected to a higher order processing unit in order to communicate therewith. The higher order processing unit is informed of an event that is recorded by one of the at least two measuring modules. The processing unit then informs any available measuring module of the event.