Connecting to SR 510 by Stanford Research Systems in Python

Instrument Card

The SR510 is analog lock-in amplifiers which can measure AC signals as small as nanovolts in the presence of much larger noise levels.

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 SR 510 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.sr510 import SR510

# Create a VISA adapter for communication
adapter = VISAAdapter("GPIB0::1::INSTR")

# Connect to the SR510 Lock-in Amplifier
lockin = SR510(adapter)

# Set the lock-in amplifier properties
lockin.phase = 90
lockin.time_constant = 1e-3
lockin.sensitivity = 10e-9

# Read the lock-in amplifier measurements
frequency = lockin.frequency
status = lockin.status
output = lockin.output

# Print the measurements
print("Frequency: {} Hz".format(frequency))
print("Status: {}".format(status))
print("Output: {} V".format(output))

# Disconnect from the lock-in amplifier
lockin.disconnect()

This script first creates a VISA adapter using the VISAAdapter class from Pymeasure. The adapter is initialized with the VISA address of the lock-in amplifier.

Then, an instance of the SR510 class is created, passing the adapter as an argument. This represents the lock-in amplifier instrument.

The script sets the lock-in amplifier properties by assigning values to the phase, time_constant, and sensitivity attributes of the SR510 instance.

Next, the script reads the lock-in amplifier measurements by accessing the frequency, status, and output attributes of the SR510 instance.

Finally, the script prints the measurements and disconnects from the lock-in amplifier by calling the disconnect() method of the SR510 instance.

Note: Make sure to replace the VISA address "GPIB0::1::INSTR" with the actual address of your lock-in amplifier.