MEASURE_READ_2450

Returns the measurement reading from the 2450. Use the MEASURE_SETTINGS_2450 block to change the measurement settings. Requires a CONNECT_2450 block to create the connection. Params: connection : VisaConnection The VISA address (requires the CONNECTION_2450 block). Returns: out : Scalar Reading

Python Code

from typing import Optional
from flojoy import VisaConnection, flojoy, DataContainer, Scalar


@flojoy(deps={"tm_devices": "1.0"}, inject_connection=True)
def MEASURE_READ_2450(
    connection: VisaConnection,
    input: Optional[DataContainer] = None,
) -> Scalar:
    """Returns the measurement reading from the 2450.

    Use the MEASURE_SETTINGS_2450 block to change the measurement settings.

    Requires a CONNECT_2450 block to create the connection.

    Parameters
    ----------
    connection : VisaConnection
        The VISA address (requires the CONNECTION_2450 block).

    Returns
    -------
    Scalar
        Reading
    """

    # Retrieve oscilloscope instrument connection
    smu = connection.get_handle()

    c = float(smu.commands.smu.measure.read())

    return Scalar(c=c)

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Example

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Download this Flojoy App

In this example, a Keithley 2450 to generate 1V and then sweep between 0 and 1V.

First the necessary blocks were added:

• CONNECT_2450
• BEEP_2450
• RESET_2450
• SOURCE_2450
• MEASURE_SETTINGS_2450
• MEASUREMENT_READ_2450
• IV_SWEEP_2450
• BIG_NUMBER
• LINE

The instrument address was set for each 2450 block. The SOURCE_2450 block was changed in order to source 1V. The parameters in the MEASURE_SETTINGS_2450 block were changed as necessary. The MEASUREMENT_READ_2450 block was connected to the BIG_NUMBER block in order to view the reading.

The IV_SWEEP_2450 block output was connected to the LINE plot to show the output of the sweep.

The blocks were connected as shown and the app was run.