A power supply apparatus for an X-ray imaging apparatus includes grid connection device(s) to connect to a power grid providing an AC input voltage, including circuit protection arrangement(s) to not trip below a safety current; an actively actuatable transformer arrangement to transform the AC input voltage into a DC output voltage as a supply voltage for the X-ray imaging apparatus; an electrical energy storage system; and a control apparatus to actuate the transformer arrangement to limit power consumption from the electric power grid as a function of the safety current and make up for a deficiency of a power requirement for the X-ray imaging apparatus from the energy storage system. The control apparatus is configured to actuate the transformer arrangement for time-dependent limitation of power consumption from the power grid according to a current/time profile, the current/time profile being deduced from a time-based trip profile of the circuit protection arrangement.

A power supply apparatus for an X-ray imaging apparatus includes grid connection device(s) to connect to a power grid providing an AC input voltage, including circuit protection arrangement(s) to not trip below a safety current; an actively actuatable transformer arrangement to transform the AC input voltage into a DC output voltage as a supply voltage for the X-ray imaging apparatus; an electrical energy storage system; and a control apparatus to actuate the transformer arrangement to limit power consumption from the electric power grid as a function of the safety current and make up for a deficiency of a power requirement for the X-ray imaging apparatus from the energy storage system. The control apparatus is configured to actuate the transformer arrangement for time-dependent limitation of power consumption from the power grid according to a current/time profile, the current/time profile being deduced from a time-based trip profile of the circuit protection arrangement.

A monitoring device for maintenance prediction for a medical imaging apparatus and a related method are described. First and second data sets of parameters of the medical imaging apparatus are measured over respective first and second periods by a data processing unit, one data set for each period. The second data set comprises data samples selected based on a trigger point. Operation modes of the medical imaging apparatus are identified based on the first set and the selected data samples. It is analysed whether there are corresponding operation modes, one operation mode for each data set. In a validation step it is validated whether the measured parameters in the first set and the selected data samples differ. Based on the outcome of the validation step, a feedback signal is issued, including maintenance prediction information.

A monitoring device for maintenance prediction for a medical imaging apparatus and a related method are described. First and second data sets of parameters of the medical imaging apparatus are measured over respective first and second periods by a data processing unit, one data set for each period. The second data set comprises data samples selected based on a trigger point. Operation modes of the medical imaging apparatus are identified based on the first set and the selected data samples. It is analysed whether there are corresponding operation modes, one operation mode for each data set. In a validation step it is validated whether the measured parameters in the first set and the selected data samples differ. Based on the outcome of the validation step, a feedback signal is issued, including maintenance prediction information.

An X-ray inspection device is configured to prevent water from flowing into areas of the X-ray inspection device during a washing operation. The X-ray inspection device is provided with an X-ray emitter, a cooler, a cooler cover, and an opening/closing member. The cooler cools the X-ray emitter. The cooler cover covers the cooler. Openings are formed in the cooler cover and, when open, provide interior-exterior air flow communication when the cooler is cooling the X-ray inspection device. An opening/closing member is configured for movement between an open orientation opening the opening and a closed orientation closing the openings formed in the cooler cover.

An X-ray inspection device is configured to prevent water from flowing into areas of the X-ray inspection device during a washing operation. The X-ray inspection device is provided with an X-ray emitter, a cooler, a cooler cover, and an opening/closing member. The cooler cools the X-ray emitter. The cooler cover covers the cooler. Openings are formed in the cooler cover and, when open, provide interior-exterior air flow communication when the cooler is cooling the X-ray inspection device. An opening/closing member is configured for movement between an open orientation opening the opening and a closed orientation closing the openings formed in the cooler cover.

The X-ray imaging apparatus includes: a main power supply operation unit for switching ON/OFF of power supply to the X-ray imaging apparatus; a braking unit for decelerating a rotation speed of the anode to a predetermined braking speed lower than a resonance range which is a rotation speed of the anode at which resonance occurs in the X-ray tube; and a non-braking stop prediction unit configured to detect a predetermined situation in which a non-braking stop state is predicted, the non-braking stop state being a state in which the main power supply operation unit is operated to be turned to an OFF state without decelerating the rotating anode by the braking unit. The non-braking stop prediction unit activates the braking unit by detecting the predetermined situation to decrease the rotation speed of the anode to the braking speed.

Computer-implemented methods for monitoring the functional state of a system for the computer-tomographic examination of workpieces by carrying out one or more computer-tomographic measurements on the workpiece. The measurements each result here in at least one measured value for at least one measurement variable. The method for monitoring the functional state selects measured values for at least one measurement variable from at least two measurements on one or more workpieces. At least one degree of variation for the selected measured values of the at least one measurement variable as well as at least one reference degree of variation for measured values of the at least one measurement variable is determined. The functional state of the system is determined by comparing the at least one determined degree of variation with the at least one reference degree of variation for the at least one measurement variable.

Computer-implemented methods for monitoring the functional state of a system for the computer-tomographic examination of workpieces by carrying out one or more computer-tomographic measurements on the workpiece. The measurements each result here in at least one measured value for at least one measurement variable. The method for monitoring the functional state selects measured values for at least one measurement variable from at least two measurements on one or more workpieces. At least one degree of variation for the selected measured values of the at least one measurement variable as well as at least one reference degree of variation for measured values of the at least one measurement variable is determined. The functional state of the system is determined by comparing the at least one determined degree of variation with the at least one reference degree of variation for the at least one measurement variable.

An inverter circuit of an embodiment includes a plurality of semiconductor switching elements constituting a bridge circuit; a transformer connected to the output end of the bridge circuit; an electric current detector that detects whether an electric current carried through at least one of the switching elements exceeds a predetermined value; a pulse generator circuit that transmits a periodic pulse signal; a flip-flop circuit connected to the detector and the pulse generator circuit; a field effect transistor (FET) turned on or off by a signal from the flip-flop circuit; and a gate signal generator circuit connected to the FET and the bridge circuit. The flip-flop circuit inverts an output signal by a detection signal of the detector and interrupts the output of the bridge circuit. The gate signal generator circuit switches the switching element at the diagonal position of the bridge circuit based on a signal from the FET.