Socon | Sonar frequency | underground cavity survey, underground storrage cavity, underground storrage cavern

The sonar frequency

Summary:

The measuring frequency and the acoustic velocity determine the wavelength.

the higher the measuring frequency, the smaller the angle of beam spread
the lower the measuring frequency, the greater the range

The wavelength has a decisive influence on the quality and reliability of the survey results.

Every medium and every type of casing are best suited to specific wavelengths or ranges of wavelength. Consequently, it is essential to appropriately adjust the ultrasonic ceramic unit, and therefore the frequency, in order to obtain precise and reliable survey data.

Every ultrasonic ceramic unit has its own specific frequency behaviour and characteristics that affect the effectiveness of the ceramics. Production-related variations of these characteristics cannot be avoided.

Deviations of the set measuring frequency from the preferred frequency lead to "squinting" in the ultrasonic ceramic unit. For this reason the measuring frequency in high quality survey systems must be optimized for the ceramic unit being used and affects of temperature and pressure variations must be compensated for.

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The measuring frequency used by SOCON systems is not - as is usually the case - a constant frequency of 200 kHz or. 600 kHz, but instead can be selected to be anything between 30 kHz and 2500 kHz.

Optimal data acquisition is achieved by adjusting the measuring frequency - and consequently also the wavelength - to suit the job to be carried out.

Diverse ultrasonic ceramic units are applied which have been researched and manufactured inhouse.

Sonar in caverns

SOCON SONAR CONTROL
Kavernenvermessung GmbH

The World-wide leading engineering company specializing in the surveillance of underground caverns and voids.

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SOCON Sonar Control - Kavernenvermessung GmbH
Schachtstr. 3b | D-31180 Giesen | Phone: +49 (0)5066-608-0 | Fax: +49 (0)5066-608-88