Right up close:
Compact particle sensor for real-time analysis

The Q.ANT particle sensor uncovers the information you need, delivering real-time insights from your process through a web-GUI. Additionally, the API unlocks a wide array of possibilities.

Better quality and higher efficiency? The solution lies in process control.

Quantum-based particle sensors enable more sustainable methods, energy-efficient applications, and the highest quality. Welcome to the future of particle analysis!

The particle sensor measures the size, speed, and trajectory of particles in liquids and gases. Two versions are available for selection: The Q.P2 sensor analyzes particles in a range from 2µm to 50µm, while the Q.P20 sensor measures particles from 20µm to 700µm.

The intuitively designed web-GUI allows for real-time insights into your processes or material quality. The setup of the sensor is prepared and ready to use in just a few minutes.

Shape recognition and online installation of the sensor are the next milestones on our product roadmap. By involving customers early and maintaining close collaborations, we are working closely with the market on the next generation of sensors.


This converts the light in the superposition state back into linear light waves.

Measurement output

Data from the light measurement is fed from this output to software that uses it to generate information about the items measured.

Light in superposition state

The light in the superposition state is beamed to the measurement cell.


This focuses the laser beam and converts the incoming linear light waves into light in a superposition state.

Linear light waves

Linear light waves strike the lens.

Laser driver

This generates the laser beam.

Measurement cell

In this cell. the particles flow in gas, liquids or as powder through a translucent tube.

The quantum trick

The light in the superposition state "illuminates" a particle simultaneously in several dimensions. This allows conclusions to be made almost immediately about the speed, size and position of the particle being examined.

Optical fiber

This guides the laser beam.

Shedding Light with the Photonic Trick

The Q.ANT particle sensors operate using special states of light, so-called photonic superposition states. When such light waves strike a particle, it is illuminated simultaneously in multiple dimensions. This enables the acquisition of extensive information in a single real-time measurement, such as the speed, size, and trajectory of the particle. From this dataset, artificial intelligence will determine the shape of the particle in the future. We call this the Photonic Trick.

With the help of the Q.ANT particle sensor, we are opening a whole new chapter in our Bionic Learning Network.

Prof. Dr. Volker Nestle

Head of Development LifeTech at Festo

©Festo SE & Co. KG, alle Rechte vorbehalten

Quantum technology for industrial use? Q.ANT makes it possible.

Option 1: Laboratory Use

It has never been easier to use quantum technology: The particle sensor, designed for laboratory use, can be used as a finished product with minimal effort. The benefits are clear: less lead time and short-term use for your application.

Option 2: Integrated into Your Process

The particle sensor is customized specifically for your application, ensuring that exactly what you need is measured, precisely where you need it. Our application engineers evaluate your requirements for optimal system settings. In the near future, this will also include shape recognition and online integration into your process.

Q.ANT is a strategic partner of​

News about particle sensing

At this year’s ACHEMA (Hall 11.0 Booth F50), the start-up Q.ANT is exhibiting the world’s first industrial-grade quantum sensor as a particle sensor. This can [...]

Q.ANT presents the world’s first quantum particle sensor for process technology at Achema. At the leading international trade fair for the process industry, Q.ANT will [...]

In a fascinating broadcast for coffee connoisseurs and those interested in technology, editorial journalist Frank Grotelüschen interviews Michael Förtsch and Maria Hohm about quantum sensor [...]

Your contact

Vanessa Bader

Customer Project Engineer

I’m excited to discuss the potential of the Q.ANT particle sensor for your needs with you.
Ready to take The leap?

Work in the field of particle sensing

Q.ANT Particle Sensor in the Media