Connecting to SG 380 by Stanford Research Systems in Python

Instrument Card

The SG380 Series RF Signal Generators use a unique, innovative architecture (Rational Approximation Frequency Synthesis) to deliver ultra-high frequency resolution (1 µHz), excellent phase noise, and versatile modulation capabilities (AM, FM, ØM, pulse modulation and sweeps) at a fraction of the cost of competing designs. The standard models produce sine waves from DC to 2.025 GHz (SG382), 4.05 GHz (SG384) and 6.075 GHz (SG386).

Device Specification: here

Manufacturer card: STANFORD RESEARCH SYSTEMS

Stanford Research Systems is a maker of general test and measurement instruments. The company was founded in 1980, is privately held, and is not affiliated with Stanford University. Stanford Research Systems manufactures all of their products at their Sunnyvale, California facility.

• Headquarters: Sunnyvale, California
• Yearly Revenue (millions, USD): 24.9
• Vendor Website: here

Connect to the SG 380 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.

PyMeasure

from pymeasure.adapters import VISAAdapter
from pymeasure.instruments import SG380

# Create a VISA adapter for communication with the instrument
adapter = VISAAdapter("TCPIP::192.168.1.1::INSTR")

# Create an instance of the SG380 RF Signal Generator
sg = SG380(adapter)

# Connect to the instrument
sg.open()

# Access the properties and methods of the instrument
frequency = sg.frequency
print("Current frequency: {} Hz".format(frequency))

sg.frequency = 1E6
print("Frequency set to 1 MHz")

mod_type = sg.mod_type
print("Current modulation type: {}".format(mod_type))

sg.mod_type = 'AM'
print("Modulation type set to AM")

# Close the connection to the instrument
sg.close()

This script demonstrates how to connect to an SG380 RF Signal Generator using Pymeasure. It creates a VISA adapter for communication, creates an instance of the SG380 instrument, opens the connection, and then accesses and sets various properties of the instrument. Finally, it closes the connection.