The role of non-contact sensors in modern medical devices

Many processes and treatments in today’s medical industry necessitate careful tracking with cutting-edge devices. Whether dealing with bodily fluids or outside medications, substance levels should be detected and assessed accurately.

The role of non-contact sensors in modern medical devices

Image Credit: Introtek International

A special sensor can accommodate various device sizes while recording accurate notes regarding substance levels such as blood, insulin, and IV fluids. A non-contact level sensor does not come into contact with the substances under surveillance in a vessel or tube. The ultrasonic signal also does not affect the given fluid, which helps maintain both hygiene and quality.

The function 

A medical sensor manufacturer builds its products to transmit continuous ultrasonic vibrational waves. Waves deflect from a given substance’s surface to return to the starting sensor. 

Medical services can use this to assess and monitor liquids by interacting with the sensor’s results. The sensor uses time measurements during one wave’s “trip” from the sensor and back again. The outputs are then recorded in the non-contact level sensor and contrasted with the speed of sound to identify the level a fluid has attained.

Sensor types 

Sensor manufacturing entities produce stainless steel metal devices that can capture moisture, temperature, and level readings of liquids. Such innovations can be used in many use cases, extending well beyond the medical industry. 

Industrial and medical clients may also prefer plastic sensors. These are constructed from nylon or polypropylene, which are both known for their durable nature. The plastic versions are also particularly resistant to chemical effects. Similar to their metal counterparts, they can also be utilized in various industries, extending well beyond the medical field.

More benefits

Specialized sensors have a significant range of measurement. This typically enables use in medical containers and devices ranging from 15 mm to 300 mm. However, it is possible to have devices specially designed and used for smaller and larger sizes alike.

Such devices are also exceedingly simple to install, needing a singular strap to be attached to their outer container. These innovations can be utilized for the continuous level sensors of the medical domain and the point-level sensors that are key for assessing the tank and farm silo contents.

With its ultrasonic technology, Introtek can work with all non-contact sensor requirements that arise in the medical industry.

About Introtek International

Introtek has produced non-invasive ultrasonic air bubble detectors, continuous liquid level sensors, optical blood component detectors, and now pressure occlusion detectors. Introtek sensors utilize a patented pulse-type ultrasonic technology that detects air bubbles, air-in-line, and liquid levels with the highest degree of accuracy and reliability, thereby maintaining an extremely high MTBF. Introtek sensors are not susceptible to the limitations exhibited by continuous wave, capacitive, or load-cell sensors.


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Last updated: Oct 28, 2025 at 9:17 AM

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