NTC-22.01.35 “Semiconductive optical generators, Planck’s constant”

Br0.00

The training laboratory system is designed to study the operation principle of semiconductive optical generators, to check current-voltage characteristics of LEDs, radiate different waves length.

On the basis of the data obtained, voltage is determinated, at which the pn-transition begins to emit light quanta and the value of Planck’s constant is estimated.

Structurally, the training system is a desktop unit.

The system consists of the case with following equipment, installed inside:

stabilized current source;
digital control and measurement circuit of investigated parameters.

The front panel of training system includes:

a set of LEDs, radiate different waves length;
digital indicators;
switch sockets;
potentiometers for voltage regulation.

The back panel on training system includes:

power switch;
USB socket;
fuse.

The training system is supplied with methodical and technical documentation for teaching staff.

Experiments provided

Determination of Planck’s constant, based on measurement of the turn-on voltage of semiconductor emitting LEDs and a semiconductor laser.

Technical specifications

Power supply		~50 Hz 220 V 1P+N+PE (single-phase with protective conductor 220 V, 50 Hz)
Power consumption, kW, max		0,05
Maximum current, A, max		2
Overall dimensions, max
	width, mm	230
	height, mm	100
	depth, mm	220
Weight, kg, max		2

Scope of delivery

training system – 1 pc;
passport – 1 pc.;
jumper – 1 pc.;
accompanying materials in electronic format – 1 pc.

NTC-22.01.35 “Semiconductive optical generators, Planck’s constant”

Experiments provided

Technical specifications

Scope of delivery

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