.. _overview-hardware: 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. .. figure:: lab_disposition.png :alt: placement of the experiments in the laboratory :scale: 75% Fig. 1.: Map of the laboratory and the remote controlled experiments. Exp. --- Interferometry ----------------------- +--------------+-----------+-------------+--------------------------------------------------------------------------+ | Device | Type | Connection | Description | +==============+===========+=============+==========================================================================+ | Motors | |control| | USB/Arduino | Manipulators for the microwave antenna and the object (e.g. glass pane). | +--------------+-----------+-------------+--------------------------------------------------------------------------+ | Oscilloscope | |measure| | TCP/IP | RIGOL MSO5000, observes the output of the interferometer board. | +--------------+-----------+-------------+--------------------------------------------------------------------------+ Exp. --- Langmuir Probes ------------------------ +---------------------+-----------+-------------+---------------------------------------------------------------------------------------+ | Device | Type | Connection | Description | +=====================+===========+=============+=======================================================================================+ | Motors | |control| | USB/Arduino | Manipulator for the discharge electrodes and probes. Also can open the pumping valve. | +---------------------+-----------+-------------+---------------------------------------------------------------------------------------+ | Power Supply | |control| | USB/Arduino | Power supply used to generate plasma between the electrodes. | +---------------------+-----------+-------------+---------------------------------------------------------------------------------------+ | Source Meter KI2400 | |measure| | USB/RS-232 | Multimeter combined with power source to observe the probes' I-V characteristic. | +---------------------+-----------+-------------+---------------------------------------------------------------------------------------+ Exp. --- Magnetic Field ----------------------- +--------------------+-----------+-------------+----------------------------------------------------------------------------------+ | Device | Type | Connection | Description | +====================+===========+=============+==================================================================================+ | Motors | |control| | USB/Arduino | Manipulator that controls position of the wire and position of the mobile probe. | +--------------------+-----------+-------------+----------------------------------------------------------------------------------+ | Magnetic Probes | |measure| | USB/Arduino | Observe the magnetic field by measuring raw & integrated current in coils. | +--------------------+-----------+-------------+----------------------------------------------------------------------------------+ | Switch for PS | |control| | USB/Arduino | Switch that turns on the power supply units. | +--------------------+-----------+-------------+----------------------------------------------------------------------------------+ | PS Wire | |control| | USB/RS-232 | Power supply that controls the current in the main wire. | +--------------------+-----------+-------------+----------------------------------------------------------------------------------+ | PS Helmholtz Coils | |control| | USB/RS-232 | Power supply that controls the current in the Helmholtz coils. | +--------------------+-----------+-------------+----------------------------------------------------------------------------------+ Exp. --- Paschen ---------------- +----------------------+-----------+------------+----------------------------------------------------------------------------------------------------------------------------------+ | Device | Type | Connection | Description | +======================+===========+============+==================================================================================================================================+ | Motorized electrodes | |control| | 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 | |control| | 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 | |control| | USB/Arduino | Control the microwave generator power output. Also can open the pumping valve. | +--------------------------------+-----------+-------------+--------------------------------------------------------------------------------+ | Spectrum Analyser RIGOL DSA800 | |measure| | TCP/IP | Observe the frequency spectrum in the resonance cavity. | +--------------------------------+-----------+-------------+--------------------------------------------------------------------------------+ Exp. --- Magnetic Trap ---------------------- +-----------------+-----------+-------------+-----------------------------------------------------------------------------------------------------------------------------+ | Device | Type | Connection | Description | +=================+===========+=============+=============================================================================================================================+ | Coils and Valve | |measure| | 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 | |control| | USB/RS-232 | Power supply that controls the current in the coils to generate the magnetic field. | +-----------------+-----------+-------------+-----------------------------------------------------------------------------------------------------------------------------+ | Cathode Heater | |control| | USB/Arduino | Heater unit that controls the rate of electron emission by heating the cathode. | +-----------------+-----------+-------------+-----------------------------------------------------------------------------------------------------------------------------+ | HV Supply | |control| | USB/Arduino | High voltage power supply that controls the energy of electrons by applying voltage to the cathode. | +-----------------+-----------+-------------+-----------------------------------------------------------------------------------------------------------------------------+ | Langmuir Probe | |measure| | USB/Arduino | Measure an I-V characteristic of a Langmuir probe. | +-----------------+-----------+-------------+-----------------------------------------------------------------------------------------------------------------------------+ Vacuum ------ +------------------+-----------+------------+---------------------------------------------------------------------------------------------------------------------------------------+ | Device | Type | Connection | Description | +==================+===========+============+=======================================================================================================================================+ | Valve Board | |control| | 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 | |measure| | TCP/IP | Observe and log the pressure in each of the vacuum chambers. | +------------------+-----------+------------+---------------------------------------------------------------------------------------------------------------------------------------+ .. figure:: valveboard_schematics_v2.png :alt: schematics of the valve board :scale: 25% Fig. 2.: Schematics of the valve board and the naming convention for the valves. (Click on the figure to zoom in.) .. Emoticons for device types: .. |control| unicode:: U+1F50C .. .. |control| unicode:: U+26A1 .. .. |control| unicode:: U+1F39A .. .. |control| unicode:: U+1F3D7 .. .. |control| unicode:: U+1F477 .. |measure| unicode:: U+1F4C8 .. .. |measure| unicode:: U+1F4D0 .. |camera| unicode:: U+1F3A5 .. .. |camera| unicode:: U+1F4F9