SECO Sensor

Non-contact sensors

impress with their durability and sustainability

Ultrasonic sensors have one major advantage: they do not have to touch the objects to which they are measuring the distance, for example. Only the ultrasound “touches” the objects – regardless of whether they are solids, liquids or gases. The sensor itself always measures without contact, which protects it from premature wear. This is a great advantage, especially with aggressive media or in sensitive applications. Be inspired by a technology that is both economical and offers great benefits in terms of sustainability.

The heart of every ultrasonic sensor is the ultrasonic transducer. Here, SECO Sensor offers almost 30 years of experience in development and production – “Made in Germany”.

How do non-contact sensors work?

There are two operating modes of our ultrasonic sensors that ensure non-contact measurement processes. Both do not require direct contact with the object, such as the surfaces of solids, bulk materials or liquids. They only have contact with the media through which the ultrasonic signals travel – (typically) air or gases.

Transmitter-receiver operation

Here, two sensors face each other and the ultrasonic signal moves between them. The transmitter emits an ultrasonic pulse. The receiving transducer processes the incoming signal.

The process works without contact and is used primarily for flow measurement of gaseous substances (such as in wind measurement, gas meters or medical technology), but also for web edge control and double sheet control.

Pulse-echo method

In this case, the sensor communicates with itself via echo. This means that it emits its sound pulse, which is reflected by the object surface and sent back to the sensor. Depending on the transit time of the ultrasonic signal, the sensor calculates the distance in this way.

Whether for determining fill levels in silos or in small ampoules, for distance determination or presence monitoring: in all these cases, measurements are taken without touching the reflector.

Ultraschallsensor Funktionsweise - Sender-Empfänger und Impuls-Echo - SECO Sensor

Do you have questions about touchless sensor technology and the advantages of ultrasonic technology?

We offer customizable sensor solutions that are specifically tailored to your requirements. SECO develops, produces and supplies ultrasonic transducers for a wide range of industrial applications. We are happy to advise you!

We look forward to your inquiry.

Your contact Managing Director Eugen Gergert from SECO Sensor

Eugen Gergert

Managing Director

Locations Ultrasonic transducer Germany, SECO Sensor in Küps

Durable and sustainable at the same time

Non-contact measurement offers several decisive advantages: There is less wear and tear, which means that the sensors work optimally in use over a long period of time. This extends re-investment cycles and significantly reduces material consumption.

SECO Sensor is a specialist in the field of individual transducers

SECO Sensor is not only a developer and manufacturer of high-quality transducers for non-contact sensors. We work with you to determine the best transducer solution for your individual measuring task. We are looking forward to your inquiry!

Further background information

Unlike capacitive or inductive sensors, sensors with transducers from SECO Sensor work with an ultrasonic signal. While optical sensors tend to be used for detecting different materials, ultrasonic sensors also work independently of the material in many different measuring tasks across the industry.

For use in challenging locations, we offer individual product solutions in which we adapt our ultrasonic transducers to your specific measuring task by customizing the design, materials and innovative additional equipment. Talk to us! We look forward to your measuring idea.