TEL-13114SYS Hall Effect System
The Hall Effect is the production of a potential perpendicular to the flow of current in a conductor in a magnetic field. The effect is especially interesting in semiconductors because both electrons and holes contribute to current flow and the Hall effect. The TEL-13114SYS Hall Effect System allows students to investigate the Hall effect in undoped Germanium, N-doped Germaium, and P-Doped Germanium. In addition to learning the pure science of the Hall effect, students will develop an understanding of the operating principles of common magnetic sensors, such as the Smart Magnetic Sensor. The system includes:
- TEL-13114 Hall Effect Basic Apparatus
- TEL-13111 Printed circuit board with undoped germanium crystal
- TEL-13112 Printed circuit board with p-doped germanium crystal
- TEL-13113 Printed circuit board with n-doped germanium crystal
- TEL-8497215 U-Shaped Core
- TEL-8497200 Pair of Pole-Shoes
- TEL-8497181 Pair of Clamps
- 2 x TEL-8497430 Coil with 600 Turns (2x)
- 2 x TEL-33020 Power Supply
| TEL-13114SYS Hall Effect System |
$4,824.00 |
TEL-13114 Basic Hall Effect Apparatus
This is a basic apparatus for connecting to germanium crystals on printed circuit boards (TEL-13111 - TEL-13113). One can then measure Hall potentials and conductivities at different temperatures. Includes a stem for setting up the apparatus between the pole-shoes of the transformer assembly kit, integrated adjustable constant-current source, amplifier for temperature measurement, automatic heater cut out to protect the crystal, and compensation circuit with matching and cut out functions for offset voltages.
Specifications
| Heater voltage: |
15 V DC, 2 - 4 A |
| Constant-current source: |
12 V DC, 40 mA |
| Output signals: |
Hall potential, temperature, voltage drop across crystal |
| Connections: |
4 mm safety sockets |
| Dimensions: |
150x250x50 mm³ approx. |
| Weight: |
0.5 kg approx. |
| TEL-13114 Basic Hall Effect Apparatus |
$842.00 |
TEL-13111, TEL-13112, TEL-13113 Germanium Crystal on Printed Circuit Board
An interchangeable board with an undoped(TEL-13111), p-doped (TEL-13112) or n-doped (TEL-13113) germanium crystal, intended for investigating the conductivity of germanium as a function of temperature. Has contacts for transverse current, an integrated resistive heating element with temperature sensor, and a multi pin plug for connecting the circuit board to the basic Hall effect apparatus (TEL-13114).
Specifications
| Crystal dimensions: |
20x10x1 mm³ approx. |
| Overall dimensions: |
100x100x10 mm³ approx. |
| Weight: |
200 g approx. |
| TEL-13111 Undoped germanium crystal |
$958.00 |
|
TEL-13112 P-doped germanium crystal |
$1050.00 |
|
TEL-13113 N-doped germanium crystal |
$1050.00 |
TEL-33020 Low Voltage Power Supply
This universal power supply has a digital current and voltage display. Output voltage and output current are continuously adjustable. This supply can be used as a constant voltage source with current limiting or as a constant current source with voltage limiting.
Specifications
| DC output: |
0 - 20 V, 0 - 5 A |
| Output power: |
100 W |
| Stability under full load: |
| Voltage Regulated: |
≤ 0.01% ± 5 mV |
| Current Regulated: |
≤ 0.2% ± 5 mA |
|
| Residual ripple: |
≤ 1 mV, 3 mA |
| Display: |
2 x 3 digit LED |
| Terminals: |
4 mm safety sockets |
| Dimensions: |
approx. 130x150x300 mm |
| Weight: |
approx. 4.7 kg |
| TEL-33020 Low Voltage Power Supply |
$240.00 |
|---|