Echo sonography
Level measurement with ultrasound
Non-contact, non-intrusive level measurement in liquid containers, i.e. without direct contact with the medium, is required in many applications in laboratory and medical technology, the pharmaceutical and food industries.
This is especially true whenever containers need to be replaced quickly and easily. The ability of ultrasound to propagate in solid materials such as plastic, glass or metal, as well as in liquids, makes this technology ideal for this purpose.
The principle of echo sonography is used here: an ultrasonic transducer, which is attached to the outside, underneath the container, generates an ultrasonic signal that penetrates the container wall and passes through the liquid from the bottom up to the surface. At the boundary between the liquid and the air, a large part of the signal is reflected and received again as an echo by the transducer. A simple 2-point calibration is used to configure the measurement of the fill level or fill quantity.
The wear-free and service-friendly SQ-Level sensor was specially designed for integration into laboratory devices, machines or systems and works quickly, precisely and reliably. It has a freely configurable digital switching output and a serial SPI interface.
An evaluation board with integrated LCD display is available for quick, convenient testing of the sensor. This allows the sensor to be adapted to any container size.
With its many years of experience in ultrasonic applications, SonoQ's engineering team enables all customer-specific adaptations to the requirements of the respective application.
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