Abstract: A washing machine comprises a rotatable drum for receiving laundry, a drive motor for the drum, a drive control for the drive motor and a washing machine control, the washing machine control being connected to the drive control. In a method of operating the washing machine for dry-spinning laundry at different and increasing speeds, wherein a certain speed is kept constant for a certain time in the manner of speed steps, the drum is at first rotated at a certain constant speed for spinning the laundry. The drive control monitors the motor current and records the variation over time of the motor current as well as an envelope curve of the motor current and an average of this envelope. The envelope of the motor current or its average is derived once after the time. As soon as the first derivative of the envelope or the average falls below a certain predetermined threshold value or becomes zero, the condition is defined that the spun laundry in the drum no longer loses any or sufficient water.

Abstract: In a method of operating a washing machine, different values for the power required by a drive motor of a drum of the washing machine to accelerate the drum from 30 rpm to 80 rpm are measured and stored as reference values. They can be differentiated by weight or load of laundry, potentially also by different types of laundry. These values are then compared to values derived from an actual washing or dry-spinning process, respectively. As a result of this comparison, it can be determined which values actually measured correspond sufficiently to stored values, and then the load can be determined from this result.

Abstract: In a method for operating a washing machine with a drum, a drive motor for the drum, a power supply for the drive motor and a washing machine control monitoring and detecting the motor current by means of the power supply, the following steps are performed where the motor current is constantly monitored while the drum rotates for at least three full revolutions. A full revolution of the drum is divided into three rotation sections of equal size, and the motor current is monitored and recorded for each of the rotation sections. An envelope curve of this motor current is calculated, and therefrom the standard deviation is calculated. The standard deviation is divided by the mean value of the envelope curve to determine the coefficient of variation for each rotation section.

Abstract: In a method of operating a washing machine, different values for the power required by a drive motor of a drum of the washing machine to accelerate the drum from 30 rpm to 80 rpm are measured and stored as reference values. They can be differentiated by weight or load of laundry, potentially also by different types of laundry. These values are then compared to values derived from an actual washing or dry-spinning process, respectively. As a result of this comparison, it can be determined which values actually measured correspond sufficiently to stored values, and then the load can be determined from this result.

Abstract: A washing machine comprises a rotatable drum for receiving laundry, a drive motor for the drum, a drive control for the drive motor and a washing machine control, the washing machine control being connected to the drive control. In a method of operating the washing machine for dry-spinning laundry at different and increasing speeds, wherein a certain speed is kept constant for a certain time in the manner of speed steps, the drum is at first rotated at a certain constant speed for spinning the laundry. The drive control monitors the motor current and records the variation over time of the motor current as well as an envelope curve of the motor current and an average of this envelope. The envelope of the motor current or its average is derived once after the time. As soon as the first derivative of the envelope or the average falls below a certain predetermined threshold value or becomes zero, the condition is defined that the spun laundry in the drum no longer loses any or sufficient water.

Abstract: The present invention concerns a screen panel for converting X-rays into light photons. The panel comprises a rigid foam plate (2), a first layer (1) of composite material located on one face of the rigid foam plate (2) and a second layer (3) of composite material located on the other face of the rigid foam plate, parallel to the said first face.

Abstract: The present invention relates to a low- and high-energy ionizing radiation detection apparatus composed of a semiconductor material provided with a cathode, an anode and at least one grid to form a radiation detector with a very high energy resolution rate that operates at ambient temperature.