Agilent 4284A LCR Meter¶
- class pymeasure.instruments.agilent.Agilent4284A(adapter, name='Agilent 4284A LCR meter', **kwargs)¶
Bases:
SCPIMixin
,Instrument
Represents the Agilent 4284A precision LCR meter.
agilent = Agilent4284A("GPIB::1::INSTR") agilent.reset() # Return instrument settings to default values agilent.frequency = 10e3 # Set frequency to 10 kHz agilent.voltage = 0.02 # Set AC voltage to 20 mV agilent.mode = 'ZTR' # Set impedance mode to measure impedance magnitude [Ohm] and phase [rad] agilent.sweep_measurement( 'frequency', [1e4, 1e3, 100] # Perform frequency sweep measurement ) # at 10 kHz, 1 kHz, and 100 Hz agilent.enable_high_power() # Enable upper current, voltage, and bias limits, if properly configured.
- property ac_current¶
Control AC current level in Amps. Valid range is 50 uA to 20 mA for default, 50 uA to 200 mA in high-power mode.(dynamic)
- property ac_voltage¶
Control AC voltage level in Volts. Range is 5 mV to 2 V for default, 5 mV to 20 V in high-power mode.(dynamic)
- property auto_range_enabled¶
Control whether the impedance auto range is enabled.
- property bias_current¶
Control the DC bias current in Amps. Requires Option 001 (power amplifier / DC bias) to be installed. Maximum is 100 mA.(dynamic)
- property bias_enabled¶
Control whether DC bias is enabled.
- property bias_voltage¶
Control the DC bias voltage in Volts. Maximum is 2 V by default, 40 V in high-power mode.(dynamic)
- property frequency¶
Control AC frequency in Hertz, from 20 Hz to 1 MHz.
- property high_power_enabled¶
Control whether high power mode is enabled. Enabling requires option 001 (power amplifier / DC bias) to be installed.
- property impedance_mode¶
Control impedance measurement function.
CPD: Parallel capacitance [F] and dissipation factor [number]
CPQ: Parallel capacitance [F] and quality factor [number]
CPG: Parallel capacitance [F] and parallel conductance [S]
CPRP: Parallel capacitance [F] and parallel resistance [Ohm]
CSD: Series capacitance [F] and dissipation factor [number]
CSQ: Series capacitance [F] and quality factor [number]
CSRS: Series capacitance [F] and series resistance [Ohm]
LPQ: Parallel inductance [H] and quality factor [number]
LPD: Parallel inductance [H] and dissipation factor [number]
LPG: Parallel inductance [H] and parallel conductance [S]
LPRP: Parallel inductance [H] and parallel resistance [Ohm]
LSD: Series inductance [H] and dissipation factor [number]
LSQ: Seriesinductance [H] and quality factor [number]
LSRS: Series inductance [H] and series resistance [Ohm]
RX: Resistance [Ohm] and reactance [Ohm]
ZTD: Impedance, magnitude [Ohm] and phase [deg]
ZTR: Impedance, magnitude [Ohm] and phase [rad]
GB: Conductance [S] and susceptance [S]
YTD: Admittance, magnitude [Ohm] and phase [deg]
YTR: Admittance magnitude [Ohm] and phase [rad]
- property impedance_range¶
Control the impedance measurement range. The 4284A will select an appropriate measurement range for the setting value.
- sweep_measurement(sweep_mode, sweep_values)¶
Run list sweep measurement using sequential trigger.
- Parameters:
sweep_mode (str) – parameter to sweep across. Must be one of frequency, voltage, current, bias_voltage, or bias_current.
sweep_values – list of parameter values to sweep across.
- Returns:
values as configured with
impedance_mode
and list of sweep parameters in format ([val A], [val B], [sweep_values])
- trigger()¶
Execute a bus trigger, regardless of trigger state. Can be used when
trigger_source
is set to BUS. Returns result of triggered measurement.
- property trigger_continuous_enabled¶
Control whether trigger state automatically returns to WAIT FOR TRIGGER after measurement.
- property trigger_delay¶
Control trigger delay in seconds. Valid range is 0 to 60, with 1 ms resolution.
- trigger_immediate()¶
Execute a bus trigger, regardless of trigger state. Can be used when
trigger_source
is set to BUS. Measurement result must be retrieved with FETCH? command.
- trigger_initiate()¶
Change the trigger state from IDLE to WAIT FOR TRIGGER for one trigger sequence.
- property trigger_source¶
Control trigger mode. Valid options are INT, EXT, BUS, or HOLD.