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2012 IEEE Sensors Applications Symposium Proceedings 2012

DOI: 10.1109/sas.2012.6166307

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A multi-probe setup for the measurement of angular vibrations in a rotating shaft

Tommaso Addabbo

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Cited by 15 publications

(2 citation statements)

References 7 publications

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“…In this paper, the authors extend the work presented in [10], providing a deep analysis of the effects on the measurement due to both the irregular cogwheel shape and the side shaft vibrations. As a result, they show that the well-known zerocrossing demodulation technique can represent a valid solution for retrieving the angular vibrational signal and propose a method to increase the measurement accuracy by properly combining two or more probes.…”

Section: Introductionmentioning

confidence: 84%

“…Adopting a presentation organization similar to that of [10], this paper is structured as follows. In Section II, the authors introduce the notation and a reference probe physical model.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Measurement of Angular Vibrations in Rotating Shafts: Effects of the Measurement Setup Nonidealities

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et al. 2013

IEEE Trans. Instrum. Meas.

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In this paper, the authors discuss a measurement method, based on the zero-crossing demodulation technique of FM signals, to estimate the angular velocity vibrations of a rotating shaft. The demodulation algorithm is applied without any filtering to the direct voltage output issued by some probes sensing the passages of arbitrarily shaped targets installed on the rotating shaft. The authors discuss a theoretical approach to analyze the measurement problem taking into account the chief nonidealities related to the measurement setup, i.e., they have investigated the effects of both the shaft side vibrations and the irregular shape of the targets. On the basis of the theoretical results, the authors propose a measurement method that can reject the effects of these mentioned nonidealities, exploiting the measurements of two or more probes properly positioned around the shaft

“…In this paper, the authors extend the work presented in [10], providing a deep analysis of the effects on the measurement due to both the irregular cogwheel shape and the side shaft vibrations. As a result, they show that the well-known zerocrossing demodulation technique can represent a valid solution for retrieving the angular vibrational signal and propose a method to increase the measurement accuracy by properly combining two or more probes.…”

Section: Introductionmentioning

confidence: 84%

“…Adopting a presentation organization similar to that of [10], this paper is structured as follows. In Section II, the authors introduce the notation and a reference probe physical model.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Angular Vibrations in Rotating Shafts: Effects of the Measurement Setup Nonidealities

¹

,

²

,

³

et al. 2013

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

In this paper, the authors discuss a measurement method, based on the zero-crossing demodulation technique of FM signals, to estimate the angular velocity vibrations of a rotating shaft. The demodulation algorithm is applied without any filtering to the direct voltage output issued by some probes sensing the passages of arbitrarily shaped targets installed on the rotating shaft. The authors discuss a theoretical approach to analyze the measurement problem taking into account the chief nonidealities related to the measurement setup, i.e., they have investigated the effects of both the shaft side vibrations and the irregular shape of the targets. On the basis of the theoretical results, the authors propose a measurement method that can reject the effects of these mentioned nonidealities, exploiting the measurements of two or more probes properly positioned around the shaft

Theoretical characterization of a gas path debris detection monitoring system based on electrostatic sensors and charge amplifiers

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et al. 2015

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Improved model for the capacitance estimation of guarded capacitive sensors

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et al. 2015

2015 XVIII AISEM Annual Conference

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We present a polynomial correction factor to improve the analytical models proposed in literature to estimate the sensing capacitance of guarded capacitive for displacement measurement. The correction factor has been obtained by fitting parametric numerical calculations based on Finite Element Analysis. The proposed heuristic model provides accurate estimations for a wide range of measuring distances. The robustness of the model has been tested by varying the size of the insulator gap g, even considering the sensor mounted in a recess of the fixed grounded plate with different geometries

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