Non-contact length and speed measurement

Storozhuk, E.S.; Redko, Vitaliy Vladimirovich; Mylnikova, Tatyana Stepanovna

doi:10.1109/spcmtt.2008.4897491

Cited by 4 publications

(2 citation statements)

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“…Non-contact speed measurement instruments, such as optical tachometers, laser Doppler velocimetry (LDV) and infrared velocimetry, are developed to overcome the above problems. Such techniques are capable of accurately measuring the speed of some materials with the characteristics of viscidity, elasticity or sterility, which are challenging issues for contact measuring techniques [3][4][5]. However, all above non-contact speed measuring techniques have their own limitations of either high cost or poor performance in hostile environments.…”

Section: Introductionmentioning

confidence: 99%

Non-contact strip speed measurement using an electrostatic sensor array and data fusion technique

Wang

Qian

et al. 2014

2014 12th International Conference on Signal Processing (ICSP)

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In the production and manufacturing industries, speed measurement plays a significant part in condition monitoring and motion control of mechanical machinery. During operation, the friction between the sliding part and the air generates electrostatic charge that can be used for measurement of the linear speed. This paper deals with noncontact measurement of strip speed using electrostatic sensing and cross correlation techniques. Experiments were carried out on a purpose-built test rig. Experimental results show that accurate measurement can be achieved over the range of 2 to 10 m/s. The system performs better for higher strip speed and shorter distance between the sensor array and the strip.

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Section: Introductionmentioning

confidence: 99%

Non-contact strip speed measurement using an electrostatic sensor array and data fusion technique

Wang

Qian

et al. 2014

2014 12th International Conference on Signal Processing (ICSP)

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“…In recent years, laser Doppler velocimetry (LDV) [3] has been used for strip speed measurement. Some high-accuracy embedded LDV systems [3,4] have been developed, but they have high capital costs and are difficult to operate in harsh and extreme environments. A thermal method [5] has been proposed to measure the speed of the electrically conducting strip (sheet metal) where an array of infrared detectors and an eddy current heating device are deployed; however, this method is unsuitable for measuring non-metallic strip materials due to the nature of the thermal sensing techniques and also has high costs.…”

Section: Introductionmentioning

confidence: 99%

Non-contact strip speed measurement using electrostatic sensing and correlation signal-processing techniques

Yan¹,

Rodrigues²,

Xie³

2011

Meas. Sci. Technol.

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Accurate and reliable strip speed measurement is desirable in many manufacturing industries for both monitoring and control purposes. This paper presents the recent development in non-contact measurement of strip speed using electrostatic sensors in combination with correlation signal-processing techniques. A pair of metal electrodes is used to obtain signals from the moving strip. The speed of the strip is then determined from the known fixed spacing between the electrodes and the time delay between the two signals. Experimental tests were conducted on a motorized strip speed test rig under a range of conditions. An optical tachometer was used as a reference instrument to gauge the accuracy of the strip speed measurement system. The system design considerations, advantages and limitations are addressed. Results demonstrate that the system is capable of measuring strip speed robustly with a relative error not greater than ±1.8% and a repeatability of 2.5% over the speed range of 0.8 to 10 m s −1 .

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A comparative study of rounded and strip electrostatic sensors for non-contact measurement of cable speed

Rodrigues

Yan

2012

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings

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Non-contact length and speed measurement

Cited by 4 publications

References 0 publications

Non-contact strip speed measurement using an electrostatic sensor array and data fusion technique

Non-contact strip speed measurement using an electrostatic sensor array and data fusion technique

Non-contact strip speed measurement using electrostatic sensing and correlation signal-processing techniques

A comparative study of rounded and strip electrostatic sensors for non-contact measurement of cable speed

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