Connecting to IVVI by Qutech in Python

Instrument Card

An ohmmeter is an electrical instrument that measures electrical resistance (the opposition offered by a circuit or component to the flow of electric current). Multimeters also function as ohmmeters when in resistance-measuring mode. An ohmmeter applies current to the circuit or component whose resistance is to be measured. It then measures the resulting voltage and calculates the resistance using Ohm’s law https://en.wikipedia.org/wiki/Ohmmeter

Device Specification: here

Manufacturer card: QUTECH

At QuTech, we work on a radically new technology with world-changing potential. Our mission: to develop scalable prototypes of a quantum computer and an inherently safe quantum internet, based on the fundamental laws of quantum mechanics.

• Headquarters: CJ Delft, Netherlands
• Yearly Revenue (millions, USD): 41.3
• Vendor Website: here

Connect to the IVVI in Python

Read our guide for turning Python scripts into Flojoy nodes.

Flojoy

PROTOCOLS > SCPI

📄 IDN

Query a device's identity through the universal *IDN? SCPI command.

📄 MEASURE VOLTAGE

Query an instrument's measured output voltage, such as a DMM or power supply.

📄 SCPI WRITE

Write a SCPI command to a connected bench-top instrument and return the result.

QCodes Community

from qcodes.instrument_drivers.ivvi import IVVI

# Create an instance of the IVVI instrument
ivvi = IVVI('ivvi', 'ASRL1::INSTR')

# Connect to the instrument
ivvi.connect()

# Set the voltage of DAC 1 to 1000 mV
ivvi.dac1(1000)

# Get the voltage of DAC 1
voltage = ivvi.dac1()

# Print the voltage
print(f"Voltage of DAC 1: {voltage} mV")

# Disconnect from the instrument
ivvi.disconnect()

In this example, we first import the IVVI class from the qcodes.instrument_drivers.ivvi module. We then create an instance of the IVVI instrument with a name and the address of the instrument (in this case, ‘ASRL1::INSTR’).

Next, we connect to the instrument using the connect() method. We can then use the dac1() method to set the voltage of DAC 1 to 1000 mV. We can also use the dac1() method without any arguments to get the voltage of DAC 1.

Finally, we disconnect from the instrument using the disconnect() method.

Note: Make sure to replace ‘ASRL1::INSTR’ with the actual address of your IVVI IV Converter.