Overview of devices¶
There are 21 different devices in lab that can be remotely controlled from the web GUI. Each device belongs to one of the 6 experiments or to a shared Vacuum section.
Link to the web GUI: https://remote.plasmalab.cz
A list of all devices and a brief description of their functionality is presented below.
Fig. 1.: Map of the laboratory and the remote controlled experiments.¶
Exp. — Interferometry¶
Device |
Type |
Connection |
Description |
|---|---|---|---|
Motors |
🔌 |
USB/Arduino |
Manipulators for the microwave antenna and the object (e.g. glass pane). |
Oscilloscope |
📈 |
TCP/IP |
RIGOL MSO5000, observes the output of the interferometer board. |
Exp. — Langmuir Probes¶
Device |
Type |
Connection |
Description |
|---|---|---|---|
Motors |
🔌 |
USB/Arduino |
Manipulator for the discharge electrodes and probes. Also can open the pumping valve. |
Power Supply |
🔌 |
USB/Arduino |
Power supply used to generate plasma between the electrodes. |
Source Meter KI2400 |
📈 |
USB/RS-232 |
Multimeter combined with power source to observe the probes’ I-V characteristic. |
Exp. — Magnetic Field¶
Device |
Type |
Connection |
Description |
|---|---|---|---|
Motors |
🔌 |
USB/Arduino |
Manipulator that controls position of the wire and position of the mobile probe. |
Magnetic Probes |
📈 |
USB/Arduino |
Observe the magnetic field by measuring raw & integrated current in coils. |
Switch for PS |
🔌 |
USB/Arduino |
Switch that turns on the power supply units. |
PS Wire |
🔌 |
USB/RS-232 |
Power supply that controls the current in the main wire. |
PS Helmholtz Coils |
🔌 |
USB/RS-232 |
Power supply that controls the current in the Helmholtz coils. |
Exp. — Paschen¶
Device |
Type |
Connection |
Description |
|---|---|---|---|
Motorized electrodes |
🔌 |
USB/CAN |
Manipulator that controls the position of the top electrode. Also switches on/off a power outlet and can open the pumping valve. |
Power Supply |
🔌 |
USB/GPIB |
High voltage power supply (5kV) connected to the electrodes. Can detect when a discharge was ignited. |
Exp. — Resonance Cavity¶
Device |
Type |
Connection |
Description |
|---|---|---|---|
Wave Generator |
🔌 |
USB/Arduino |
Control the microwave generator power output. Also can open the pumping valve. |
Spectrum Analyser RIGOL DSA800 |
📈 |
TCP/IP |
Observe the frequency spectrum in the resonance cavity. |
Exp. — Magnetic Trap¶
Device |
Type |
Connection |
Description |
|---|---|---|---|
Coils and Valve |
📈 |
USB/Arduino |
Measure the magnetic field induced by the coils and their temperature. Also switches on/off the power supply for the coils. |
PS Coils |
🔌 |
USB/RS-232 |
Power supply that controls the current in the coils to generate the magnetic field. |
Cathode Heater |
🔌 |
USB/Arduino |
Heater unit that controls the rate of electron emission by heating the cathode. |
HV Supply |
🔌 |
USB/Arduino |
High voltage power supply that controls the energy of electrons by applying voltage to the cathode. |
Langmuir Probe |
📈 |
USB/Arduino |
Measure an I-V characteristic of a Langmuir probe. |
Vacuum¶
Device |
Type |
Connection |
Description |
|---|---|---|---|
Valve Board |
🔌 |
I2C, SPI |
Manage the connection paths between gas reservoirs and vacuum chambers using a cascade of valves. See the schematics in Fig. 2 below. |
Gauge Controller |
📈 |
TCP/IP |
Observe and log the pressure in each of the vacuum chambers. |
Fig. 2.: Schematics of the valve board and the naming convention for the valves. (Click on the figure to zoom in.)¶