Connecting to SR 830 by Stanford Research Systems in Python

Instrument Card

SR830 Lock-In Amplifier provide high performance at a reasonable cost. The SR830 simultaneously displays the magnitude and phase of a signal

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 830 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.instruments.srs import SR830

# Connect to the lock-in amplifier
lia = SR830("GPIB0::8::INSTR")

# Set the lock-in amplifier parameters
lia.frequency = 1000  # Set the lock-in frequency to 1 kHz
lia.sensitivity = 1e-6  # Set the sensitivity to 1 µV
lia.time_constant = 1e-3  # Set the time constant to 1 ms

# Read the X and Y values
x = lia.x
y = lia.y

# Print the X and Y values
print("X: ", x)
print("Y: ", y)

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

In this script, we first import the SR830 class from the pymeasure.instruments.srs module. We then create an instance of the SR830 class, passing the GPIB address of the lock-in amplifier as the argument.

Next, we set the lock-in amplifier parameters using the properties provided by the SR830 class. In this example, we set the lock-in frequency to 1 kHz, sensitivity to 1 µV, and time constant to 1 ms.

We then read the X and Y values from the lock-in amplifier using the x and y properties provided by the SR830 class.

Finally, we print the X and Y values and disconnect from the lock-in amplifier.

Note: Make sure you have the necessary dependencies installed, such as pymeasure and the appropriate GPIB driver for your system.