Moving Web-Tension Determination by Out-of-Plane Vibration Measurements Using a Laser

Vedrines, Marc; Gassmann, Vincent; Knittel, Dominique

doi:10.1109/tim.2008.928408

Cited by 21 publications

(23 citation statements)

References 12 publications

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“…In this model, the amplitude of the tuning fork's vibration, A t f , in (9), has been adjusted such that the simulation data match the experimental data (A t f = 0.2 mm).…”

Section: B Calibration To Experimental Datamentioning

confidence: 99%

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Feasibility Study on a Noncontact Remote-Sensing Vibration Transducer Using RF Polarimetry

Mueller

Pratt

2013

IEEE Trans. Instrum. Meas.

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This paper presents a novel, noncontact vibration transducer system using radio frequency (RF) polarimetry, which allows for vibration measurements to be collected remotely and nonintrusively at a distance. Movement or vibration of an object within the RF propagation channel can alter the combined direct, reflected, and multipath RF signals, thereby changing the received signal's polarization. This paper presents the theory to analyze a RF signal's polarization for used as a vibration transducer. The proposed transducer leverages the entire bandwidth of the RF signal using the frequencydependent polarization mode dispersion phenomenon that occurs in multipath channels. To analyze the approach, a software model has been constructed and used to simulate and characterize the transducer's performance. A feasibility comparison of this RF polarimetry technique to similar vibration transducers, including laser Doppler vibrometry, shows this new transducer to be easier and less expensive to implement without significant tradeoffs in performance. Finally, laboratory experiments verify the software model and demonstrate a real-world prototype implementation. The pure-tone vibration of tuning forks, the forced and free vibrations of a ringing telephone, and the rotational motion of a desktop fan have been measured and are presented as an evidence of this RF polarimetry transducer's diverse capabilities in vibrometry.

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“…In this model, the amplitude of the tuning fork's vibration, A t f , in (9), has been adjusted such that the simulation data match the experimental data (A t f = 0.2 mm).…”

Section: B Calibration To Experimental Datamentioning

confidence: 99%

“…The transmitter-to-object and object-toreceiver distances (d xmit and d rvcr , respectively) are contained in the time-varying distance (9). Changing these distances in this model has no significant effect on the output results because the propagation channel is not directly modeled or simulated here.…”

Section: ) Distance Rangementioning

confidence: 99%

Feasibility Study on a Noncontact Remote-Sensing Vibration Transducer Using RF Polarimetry

Mueller

Pratt

2013

IEEE Trans. Instrum. Meas.

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“…The Ninth International Conference on Electronic Measurement & Instruments ICEMI'2009 (3) No monotonous relationship can be observed between measurement error and the measuring distance.…”

Section: -1041mentioning

confidence: 99%

Modification of displacement signals collected by laser sensors

Fei

Zhang

Cai-liang

et al. 2009

2009 9th International Conference on Electronic Measurement &Amp; Instruments

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Laser displacement sensors are highly-frequent used instrument for dynamic response measurement in wind tunnel tests. The fundamental performances of three types of laser sensors used in wind tunnel laboratory are introduced, and several factors for influencing precision are reviewed. For the cases that the object moves in both translational and torsionl orientations, the modification expressions for the directly collected displacement signals are deduced. As one engineering example, the dynamic responses of Sutong Bridge aeroelastic model are modified with the former proposed formula. The research results indicate that the measurement error without displacement modification increase with the rotational angle. For Sutong Bridge model, the displacement deviations attain 6% if the modification is not carried out.

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“…Moreover, interesting experimental tests for investigating the relation between the tension distribution and the lateral movement of the web are shown in [17], a method for measuring the web tension from vibration measurements using a laser is shown in [26].…”

Section: Introductionmentioning

confidence: 99%

Decentralized Control Performances of an Experimental Web Handling System

Giannoccaro

Nishida

Sakamoto

2012

International Journal of Advanced Robotic Systems

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Robust and good tracking control of the speed and the tension in web handling systems in spite of changes of set point is surely one of the important challenges in the web transport systems future development. In this paper, the authors experimentally demonstrate the real applicability of a decentralized robust control to a multi-span web transport system, which is composed of twelve guide rollers, four main sections mutually interconnected with each other. The overlapping methodology has been applied for the system decomposition.The experimental results carried out using the robust decentralized control show an excellent velocity and tension tracking in each controlled section of the system.

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Moving Web-Tension Determination by Out-of-Plane Vibration Measurements Using a Laser

Cited by 21 publications

References 12 publications

Feasibility Study on a Noncontact Remote-Sensing Vibration Transducer Using RF Polarimetry

Feasibility Study on a Noncontact Remote-Sensing Vibration Transducer Using RF Polarimetry

Modification of displacement signals collected by laser sensors

Decentralized Control Performances of an Experimental Web Handling System

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