Abstract: A welding cell for a resistance spot welding, its use for resistance spot welding, and a welding method performed therewith are disclosed. The welding cell includes a system for implementing resistance spot welding technology, a data collecting system, a system for improving efficiency of data collection, and a processing, monitoring, and control system. The welding cell includes a data transmission priority manager for adjusting digit capacity, transmission rate and transmission frequency of the digitized signal, separately, for signals of each sensor, and a digital twin controller, which, based on the digitized signal, provides a control signal to the control unit for controlling the electromechanical actuators and moving the electrodes of the welding cell. The welding cell provides for resistance spot welding with predictable and controllable quality, increased performance and reduced requirements to the computing unit performance of the welding cell, and reduced costs for equipping the welding cell.

Abstract: A welding gun for resistance spot welding includes a first electrode; a second electrode having a fixed part and a movable part movable toward the first electrode, an electromechanical linear actuator of the first electrode fixedly attached to the fixed part of the second electrode and having a first force sensor and a rod connected to the first electrode; an electromechanical linear actuator of the movable part of the second electrode having a housing, an electric motor, an inverted roller-screw gear transforming rotary motor movement into rod translation, a position sensor determining a position of the movable part of the second electrode, and a bevel gear transferring electric motor rotation to the inverted roller-screw gear. The rod of the electromechanical linear actuator is connected to the movable part of the second electrode. The welding gun further includes a second force sensor configured to measure force on the second electrode.

Abstract: A system and method includes a matrix of elements, each of the elements comprising a respective radiation-attenuating material providing a respective radiation attenuation profile over a respective area of the matrix, and wherein at least one of the elements is independently-controllable to change its respective radiation attenuation profile over its respective area.

Abstract: An analyzer automatically analyzes both, a common portion of multiple successive heart cycles of electrophysiological signal data synchronized with respect to a P wave and a common portion of multiple successive heart cycles of the signal data synchronized with respect to an R wave, to identify changes occurring in amplitude value and time duration of the common portion of the multiple successive heart cycles of the signal data. A display processor initiates generation of at least one display image showing the common portion of the multiple successive heart cycles synchronized in time, adjacent and mutually vertically displaced to facilitate visual comparison and highlighting an identified change by a visual attribute.

Abstract: A system and method includes a matrix of elements, each of the elements comprising a respective radiation-attenuating material providing a respective radiation attenuation profile over a respective area of the matrix, and wherein at least one of the elements is independently-controllable to change its respective radiation attenuation profile over its respective area.