Connecting to Lakeshore 475 by Lakeshore in Python

Instrument Card

Lake Shore combined the technical advantages of digital signal processing with over a decade of experience in precision magnetic field measurements to produce the first commercial digital signal processor (DSP) based Hall effect gaussmeter, the Model 475. DSP technology creates a solid foundation for accurate, stable, and repeatable field measurement while simultaneously enabling the gaussmeter to offer an unequaled set of useful measurement features. The Model 475 is intended for the most demanding DC and AC applications. In many cases, it provides the functionality of two or more instruments in a field measurement system.

Device Specification: here

Manufacturer card: LAKESHORE

Supporting advanced scientific research, Lake Shore is a leading global innovator in measurement and control solutions.

• Headquarters: Westerville, Ohio, USA
• Yearly Revenue (millions, USD): 21.4
• Vendor Website: here

Connect to the Lakeshore 475 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.

InstrumentKit

import instrumentkit as ik
import instrumentkit.devices as ikd
import instrumentkit.io as iki

# Connect to the Lakeshore 475 Gaussmeter
device = ikd.Lakeshore475()
connection = iki.GPIBConnection(device_address=1)
gaussmeter = ik.Instrument(connection, device)

# Read the field value
field = gaussmeter.field
print(f"Field: {field}")

# Set the field units to Tesla
gaussmeter.field_units = ik.units.tesla

# Set the field setpoint to 0.05 Tesla
gaussmeter.field_setpoint = 0.05 * ik.units.tesla

# Change the measurement mode
gaussmeter.change_measurement_mode(
    mode=gaussmeter.Mode.dc,
    resolution=4,
    filter_type=gaussmeter.Filter.wide,
    peak_mode=gaussmeter.PeakMode.periodic,
    peak_disp=gaussmeter.PeakDisplay.positive
)

Note: This code assumes that you have already installed the Instrumentkit library.