pylab_ml.baseclass.base_measurement.Measure

class Measure(**kwargs)[source]

Bases: Instrument

Base class for measurement instruments, e.g. SMU, DMM, Scope etc.

__init__(**kwargs)[source]: Initialize the smu class.

Methods

`__init__`(**kwargs)	Initialize the smu class.
`close`([force])	Close connection to instrument.
`find_names`()	find_names() returns list of identifiers strings, lhs of = assignments
`help`()	Print the docstring of the instrument class.
`identify`([showInstName])	Identify message.
`init`([identify])	Optional init for interlock startup after identification.
`message`([message])	Message display.
`mfilter`(input)
`mqtt_add`(client, instrument[, liste, qos])	Add the instrument to mqtt.
`mqtt_disconnect`()	Remove the instrument from mqtt.
`publish`(topic, value)	Publish topic as type='cmd' with payload=value.
`publish_get`(function_name, value)	Publish function_name as type='get' with paylad=value.
`publish_set`(function_name, value)	Publish function_name as type='set' with paylad=value.
`reset`()	Reset and switch beep off.
`setup_inst`()	Setup the instrument settings.

Attributes

`channel`	Set/get channel number if the instrument have more than one channel.
`command`
`id`	Query IDN.
`instName`	Return with instname or instname[ch] if it has channels.
`interchoices`	Abstract for static class variable interchoices, to list interfaces statically.
`measurecnt`	Set/get the number of measurement to be carried out in a loop.
`mqtt_enable`
`mqtt_list`
`mqtt_status`	Getter for the mqtt_status.

property channel

Set/get channel number if the instrument have more than one channel.

One can also use:

>>> vdd[0].voltage = 5           # set voltage from channel 0
>>> vdd[1].current = 0.1         # set current from channel 1
>>> v = vdd[1].voltage           # measure voltage from channel 1

close(force=False): Close connection to instrument.

find_names()

find_names() returns list of identifiers strings, lhs of = assignments

Returns:: obj_names – List of identifier strings
Return type:: list of str

help(): Print the docstring of the instrument class.

abstract property id: Query IDN.

identify(showInstName=False): Identify message.

init(identify=False): Optional init for interlock startup after identification.

property instName: Return with instname or instname[ch] if it has channels.

abstract property interchoices: Abstract for static class variable interchoices, to list interfaces statically.

json = <module 'json' from '/home/runner/miniconda3/envs/test/lib/python3.9/json/__init__.py'>

property measurecnt

Set/get the number of measurement to be carried out in a loop.

TODO: this function is not running yet, it is only a dummy

if the result == None than this function not implemented. The return value for the measurement is calculated togetheer with the mfilter setting.

abstract message(message=None): Message display.

mqtt_add(client, instrument, liste='#', qos=0)

Add the instrument to mqtt. Calling from base_instrument, after the instrument (device) has been create. Normally you have not to use this function, only base_instrument use it.

Parameters:

client (mqtt_init) – The MQTT client instance to which the instrument should be added.
instrument (object) – The instrument to be added to the MQTT client.
liste (list or str) – A list of attributes for which MQTT messages should be sent. If set to “#”, all attributes will be included (default: “#”).
qos (int) – The Quality of Service level for MQTT messages (default: 0).

Return type:

None

mqtt_disconnect(): Remove the instrument from mqtt. Calling from base_instrument, if the instrument are closing. Normally you have not to use this function, only base_instrument use it.

property mqtt_status: Getter for the mqtt_status.

publish(topic, value)

Publish topic as type=’cmd’ with payload=value.

Parameters:

topic (str) – The name of the topic to publish.
value (any) – The value to be published.

Return type:

None

publish_get(function_name, value)

Publish function_name as type=’get’ with paylad=value.

Parameters:

function_name (str) – The name of the function to be published as a ‘get’ command.
value (any) – The value to be published as the payload of the ‘get’ command.

Return type:

None

publish_set(function_name, value)

Publish function_name as type=’set’ with paylad=value.

Parameters:

function_name (str) – The name of the function to be published as a ‘set’ command.
value (any) – The value to be published as the payload of the ‘set’ command.

Return type:

None

abstract reset(): Reset and switch beep off.

setup_inst(): Setup the instrument settings.