Franck-Hertz control unit

Product No: 09105-99

Function and Applications

Compact operating unit for Franck-Hertz-experiment to be used with Hg- and Ne-tubes.

In 1913/14 James Franck andGustav Hertz approved Bohr'smodel of atoms with this experiment (nobel prize: 1925).

Benefits:

Automatic detection of tube type and automatic limitation of tube parameter.
Examination by direct reading of displayed values, xyt-recorder, oscilloscope or PC.
From the recorded anode currentas a function of acceleration voltage the exitation energy of the atoms can be determined.

Equipment and technical data:

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 ß anode current: 0...10 V(10 V ~ 50 nA)
Data output: RS232 SubD-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.