rminstr.instruments.HP437B

Classes

RFPowerMeter

Implements the powermeter measurment functionality for the HP437B.

Package Contents

class rminstr.instruments.HP437B.RFPowerMeter(GPIB_address: str, resource_manager: pyvisa.ResourceManager = None, log_path: str = None)

Bases: rminstr.instruments.communications.Instrument, rminstr.instruments.measurement_functionalities.ABC_RFPowerMeter

Implements the powermeter measurment functionality for the HP437B.

Initialize the powermeter class instance.

Parameters:
visa_addressstr

Visa address of instrument.

resource_managervisa.ResourceManager, optional

Pyvisa resource manager for opening visa resources. The default is None.

log_pathstr, optional

If provided, will log at the specified path. The default is None.

Returns:
None.
info_dict
default_setup_settings
initial_setup(**kwargs)

Initialization method.

Returns:
None.
setup(meas_freq_MHz: int = None, cal_factor_percent: int = None, read_units: str = None, read_range: int = None, resolution: int = None, averages: int = None, zero_cal: bool = False, **kwargs)

Change powermeter settings.

Parameters:
meas_freq_MHzint, optional

Measurement update frequency.

cal_factor_percentint, optional

Cal factor.

read_unitsstr, optional

LN or W for Watts, LG or dBm for dBm.

read_rangeint, optional

Set range (0 is auto, 1 is -20 dBm, 2 is -10 dBm, …, 5 is 20 dBm).

resolutionint, optional

1 for 1%, 2 for 0.1 %, 3 for 0.01% full scale.

averagesint, optional

Filter averages. uncertainties may change with this setting.

zero_calbool, optional

Will zero calibrate the instrument with a power sensor. Default is False

Returns:
None.
arm()

Arm the powermeter to measure when tiggered.

Returns:
None.
trigger()

Send trigger signal over GPIB.

Returns:
None.
fetch_data(p_column_name: str = 'Power (W)') → dict

Fetch data from the powermeter.

Parameters:
p_column_namestr, optional

Name to give power columns in dictionary. The default is “Power (W)”

Returns:
dict

Dictionary with give names as keys.

raise_errors()

Raise instrument errors the errors as python errors.

Returns:
None.
get_errors()

Return instrument errors messages if any.

Returns:
str

Instrument errors.

query_state() → str

Check the state.

Returns:
str

Instrument state.

do_after_group_trigger()

Perform operations immediatley after a grouptrigger is called.

This function should take not arguments. Don’t override if nothing is required for the specific instrument.

Returns:
None.