Franck-Hertz control unit
Article No: 09106-99
Compact operating unit for Franck-Hertz experiment to be used with Hg- and Ne-tubes. In 1913/14 James Franck and Gustav Hertz approved Bohr's model of atoms with this experiment (Nobel Prize: 1925). Automatic detection of tube type and automatic limitation of tube parameter. Examination by direct reading of displayed values, xt-recorder, oscilloscope or PC. From the recorded anode current as a function of acceleration voltage the exitation energy of the atoms can be determined. For control and measurement of all tube parameters: Heating voltage (const.): 6.5 ± 0,5 V Acceleration voltage: 0...99 V Counter voltage: 0...12 V Emission voltage: 0...6 V Heater voltage: 0...10 V Resolution (all voltages): 0.1 V Heater current: 400 mA Heater temperature: 0...999 °C Anode current: 0...50 nA Output 4 mm-sockets: Acceleration voltage: 0...10 V (10 V ~ 100 V) Voltage prop. anode current: 0...10 V (10 V ~ 50 nA) Data output: USB socket Display: 20 mm 7-segment LED 4 operation modes: manually, automatic ramp, saw tooth (oscilloscope) and PC-control Power control for heater with safety socket (600 W) and type K socket for thermocouples Socket for 5-pole connection cable for Hg/Ne-tube