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Related Experiment Video

Updated: Jan 28, 2026

Thermal Measurement Techniques in Analytical Microfluidic Devices

Thermal Measurement Techniques in Analytical Microfluidic Devices

Published on: June 3, 2015

Compact embedded device for lock-in measurements and experiment active control.

Marcelo Alejandro Luda¹, Martin Drechsler², Christian Tomás Schmiegelow²

¹CEILAP, CITEDEF, J. B. de La Salle 4397, 1603 Villa Martelli, Buenos Aires, Argentina.

The Review of Scientific Instruments

|March 6, 2019

Summary

This summary is machine-generated.

This physics toolkit integrates multiple lab instruments into one compact device for digital processing, acquisition, and control. It offers versatile remote operation and demonstrates applications in laser spectroscopy and locking experiments.

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Area of Science:

Physics laboratory instrumentation
Digital signal processing
Control systems engineering

Background:

Traditional physics labs rely on numerous discrete instruments, increasing complexity and cost.
Integrating multiple functionalities into a single, versatile device is a significant challenge.
Remote operation and advanced data acquisition are increasingly crucial for modern experiments.

Purpose of the Study:

To introduce a multi-purpose toolkit for digital processing, acquisition, and feedback control in physics laboratories.
To consolidate the functions of a function generator, oscilloscope, lock-in amplifier, PID filters, ramp scan generator, and lock-controller into a compact device.
To enable versatile remote operation and demonstrate advanced applications in laser experiments.

Main Methods:

The toolkit combines field-programmable-gate-array (FPGA) processing with microprocessor programming for precision and versatility.
It offers multiple levels of remote control: Web GUI, script control, and in-device programming.
The system was tested using three example applications in laser spectroscopy and laser locking.

Main Results:

The toolkit successfully integrates multiple instrument functionalities into a single, compact, and user-friendly device.
Remote operation via Web GUI, scripts, and in-device programming was demonstrated effectively.
Example applications showcased successful side-fringe locking, peak locking via lock-in demodulation, and full Pound-Drever-Hall modulation/demodulation at 31.25 MHz.

Conclusions:

The presented multi-purpose toolkit offers a versatile and integrated solution for modern physics laboratory needs.
Its combination of hardware and software flexibility facilitates advanced experimental setups and remote operation.
The toolkit's successful application in laser spectroscopy and locking experiments highlights its potential to enhance research efficiency and accessibility.