# Embedded Control System for Mobile Atom Interferometers

## TL;DR

This paper presents a custom control system for mobile atom interferometers that significantly enhances measurement speed and sensitivity by replacing traditional desktop-based controls with a microcontroller-based solution.

## Contribution

It introduces a novel embedded control system for atom interferometers, enabling faster sampling and improved sensitivity in mobile atomic gravimeters.

## Key findings

- Sampling rate more than doubled
- Sensitivity improved by over √2
- Control system effectively manages multiple signal types

## Abstract

Atom interferometers require precise control of digital, analog, and radio frequency signals for effective operation. In this paper, we propose and implement a control system for mobile atom interferometers. The system consists of a microcontroller and peripherals to synthesize radio frequency signals and to read or write analog signals. We use the system to operate a mobile atomic gravimeter by controlling 7 analog outputs, 16 digital outputs, 2 radio frequency channels, and 1 analog input. Our control system eliminates dead time between repetitions of the measurement and, consequently, improves the sampling rate of our atomic gravimeter by more than a factor of 2 and the sensitivity by more than a factor of $\sqrt{2}$ compared to the system based on a desktop computer.