9 Scientific, measuring, signaling, checking, life-saving and teaching apparatus and instruments, namely, electronic apparatus and instruments for conducting, distributing, regulating, or controlling electricity; electric sensors control systems, and incremental and absolute encoders for use in data capture and for evaluating and regulating elements for rail vehicles, in particular for determining temperature, speed, vibration, position, and acceleration; electronic sensor and control systems comprised of fieldbus electrical controllers, operating computer terminals, incremental encoders, absolute encoders, speed electric sensors, position electric sensors, vibration electric sensors, acceleration electric sensors, temperature electric sensors, and positioning format adjusting drives; drive systems, namely, electric actuators; electric sensors for measuring traction control, automatic train safety, and for wheel-slide control brakes; motion capture electric sensors and electronic machine control devices; electronic speed regulators for the shunting and starting of heavy trains; electric control devices for energy recovery in braking processes; electric control devices for inhibiting torsional vibrations in the drive train; vehicle speed measuring devices, namely, incremental and absolute electric sensors and encoders with a magnetic scanning system which, in conjunction with a toothed wheel as measuring scale, permits the measurement of rotary motion; devices for measuring rolling distances; electric control devices for monitoring the movement and position of vehicle and platform doors and for obstacle recognition; rotary electric speed sensors for sensing toothed wheels; rotary electric speed sensors for electrically conductive toothed wheels; high-resolution encoders for the traction performance of locomotives; multi-channel encoders for the rolling stock industry; absolute rotary encoders; electric actuators; electric sensors and control devices for monitoring wind power installations; electric sensors in the form of encoders; interpolation electronic devices for evaluating sine-wave inputs, namely, interpolation electronic converters for the conversation of standardized sine signals into square signals; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers; data-processing equipment and computers; microcontrollers; electronic data hardware, namely, bus controllers; electronic recording devices for speed position and absolute position for self-powered electronic odometers for mileage acquisition; electronic sensors for use in measuring speed, position, vibration, acceleration and temperature; automatic electric control panels for vehicles, in particular rail vehicles