Publication Date:
2017-04-04
Description:
Plumb-line alignment can affect the sensors of precise scientific instruments. When its effect is one
of the main contributors to the measurement uncertainty, the deviation from the true vertical must
be continuously monitored or compensated. This paper describes a digital control system designed
and tested for an autoleveling platform. Best performances are obtained with an adaptive digital
compensator based on a convolution of the error signal. Although accuracy and resolution of the
leveling transducer limit the ultimate sensitivity, laboratory tests showed that the controller kept for
several hours the base-plate top within 1 rad. These performances are suitable for maintaining
the alignment of relative spring gravimeters used by volcanologists in long-term gravity
measurements.
Description:
Published
Description:
105-108
Description:
2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive
Description:
JCR Journal
Description:
reserved
Keywords:
measuring instruments
;
autoleveling platform
;
04. Solid Earth::04.02. Exploration geophysics::04.02.07. Instruments and techniques
;
04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring
;
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
;
05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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