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Celle di pressione totale per terreno

Codici di riferimento: L141, L143

LE CELLE DI PRESSIONE TOTALE PER TERRENI VENGONO UTILIZZATE PER CONTROLLARE LE PRESSIONI ALL’INTERNO DI RILEVATI O DIGHE IN TERRA E AL DI SOTTO DI FONDAZIONI, SERBATOI O PILE DI PONTI.

Le celle di pressione Sisgeo sono costituite da un piatto circolare con un solo lato sensibile riempito di olio disareato e connesso ad un trasduttore di pressione elettrico attraverso un tubetto di acciaio.

Il modello con sensore a corda vibrante incorpora anche un termistore per il controllo delle temperature. Le celle di pressione vengono installate sulla superficie di contatto tra il suolo e la struttura o disposte nel terreno con diverse orientazioni del piatto sensore. Un cavo elettrico connette il trasduttore di pressione ad una idonea unità di lettura.

Vibrating wire transducer is essentially composed by a taut wire clamped at its ends and tensioned so that it is free to vibrate at its natural frequency. The frequency of vibration varies with the wire tension and thus small relative movements between the two end clamps.
With vibrating wire transducers frequencies rather than voltage levels are measured, so a dedicated readout/datalogger must be used to measure the resonant frequency. These ones excites the vibrating wire transducer, measures the response, performs some calculations on the response, and returns the result.
SISGEO vibrating wire transducer uses ‘pluck and read’ method and not ‘auto resonant’ method; when the readout/datalogger plucks the wire a magnetic attraction is created to the coil and the wire start to vibrate and it causes an alternating voltage of the same frequency of the natural frequency of the wire; the voltage signal is transmitted on the cable and read from the readout/datalogger.
Vibrating wire transducers have a reputation for long expected life and long-term stability.

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Fundamentals of digital instrumentation:

Key concepts for reliable sensor-to-datalogger communication

Date: 25/06/2026
Time: 17:00 GMT+1
Duration: 60 minutes
Speaker: Eng. Nicola Aresi
Language: English

Find out more: SISGEO FREE WEBINAR – Fundamentals of digital instrumentation

Sisgeo Piezometers: Comprehensive Solutions for Groundwater Monitoring

What You’ll Learn:

  • Detailed overview of Sisgeo’s range of piezometer technologies including vibrating wire and electric piezometers, outlining their operating principles, installation methods, and suitability for diverse site conditions.
  • Selection of piezometer filters, emphasizing materials and designs that conform to ISO 18674-4 standards.
  • Integration of piezometer data with automated acquisition systems.
  • Best practices for calibration and maintenance standards.

When:Thu, Jul 31, 2025 3:00 PM – 4:00 PM CEST
Language: English

Sisgeo presents the new MD-Profile IPI with 360° calibration
Discover the next generation of In-Place Inclinometers for geotechnical monitoring!

The new MD-Profile 360° features:

  • new removable pressors available for 3 different tube ID
  • new triaxial calibration over the entire 360° range
  • even stronger connectors

When: 27/05/2025 3:00 PM – 3:30 PM GMT+1
Language
: English