弗兰克-赫兹实验用电源供应器（230 V，50/60 Hz）

弗兰克-赫兹实验用电源供应器（230 V，50/60 Hz）, 1012819 [U8482530-230], 电子管D (Small)

弗兰克-赫兹实验用电源供应器（230 V，50/60 Hz）

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Measurement and control unit of the Franck-Hertz experiment:_..

The quantization of energy, as well as the generation, registration, and analysis of spectra and the associated experimental confirmation of models, are important components of most curricula around the world. The well-known 1913 experiment by James Franck and Gustav Hertz is fundamental to the detection of discrete energy states in atoms. Because of the importance of these findings into modern physics, 3B Scientific offers three complete experiments compiled for school and university education (see "Recommendation").

Product Information:_..

The Franck-Hertz control unit can be used to operate the mercury filled Franck-Hertz tube, the neon filled Franck-Hertz tube or the critical potential tubes S.
It provides all the voltages needed to power the tubes and includes a highly sensitive built-in DC amplifier for measuring collector current. The voltages can simultaneously be read off a display.
The accelerating voltage can be selected either as a manually adjusted, stabilized DC voltage or as a sawtooth voltage (50 Hz).
Additional measuring inputs are also available for the anode current and accelerating voltage.

Specifications:_..

Mains voltage:	230 V (50/60 Hz)
Filament voltage U_F:	0 − 12 V	continuously adjustable
Heater current:	0 − 2.5 A
Control voltage U_G:	0 − 12 V	continuously adjustable
Accelerating voltage U_A:	0 − 80 V	continuously adjustable or r sawtooth
Counter voltage U_E:	0 − ±12 V	continuously adjustable, switchable polarity

Output U_Y for collector current I_E:	I_E = U_A * 38 nA/V (0 − 12 V)
Output U_X for accelerating voltage U_A:	U_X = U_A / 10

Outputs:	4 mm safety sockets
Input:	BNC socket
Dimensions:	160 mm x 132 mm x 210 mm approx.
Weight:	3.4 kg approx.

Recommendation:_..

3B Scientific offers on the topic "Detection of Discrete Energy States in Atoms" three complete experiments compiled for school and university education:

	Item no. :	Experiment
	8000712	Franck-Hertz-Experiment on Mercury (230 V, 50/60 Hz)
	8000714	Franck-Hertz-Experiment on Neon (230 V, 50/60 Hz)
	8000716	Critical potentials (230 V, 50/60 Hz) – Determination of excitation and ionization energies in the electron shell of an atom