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Non-intrusive torque measurement for rotating shafts using optical sensing of zebra-tapes [dataset] Open Access

Non-intrusive, reliable and precise torque measurement is critical to dynamic performance monitoring, control and condition monitoring of rotating mechanical systems. This paper presents a novel, contactless torque measurement system consisting of two shaft-mounted zebra tapes and two optical sensors mounted on stationary rigid supports. Unlike conventional torque measurement methods, the proposed system does not require costly embedded sensors or shaft-mounted electronics. Moreover, its non-intrusive nature, adaptable design, simple installation and low cost make it suitable for a large variety of advanced engineering applications. Torque measurement is achieved by estimating the shaft twist angle through analysis of zebra tape pulse train time shifts. This paper presents and compares two signal processing methods for torque measurement: rising edge detection and cross-correlation. The performance of the proposed system has been proven experimentally under both static and variable conditions and both processing approaches show good agreement with reference measurements from an in-line, invasive torque transducer. Measurement uncertainty has been estimated according to the ISO GUM (Guide to the expression of uncertainty in measurement). Type A analysis of experimental data has provided an expanded uncertainty relative to the system full-scale torque of ±0.30% and ±0.86% for the rising edge and cross-correlation approaches, respectively. Statistical simulations performed by the Monte Carlo method have provided, in the worst case, an expanded uncertainty of ±1.19%.

Descriptions

Resource type

Dataset

Contributors

Creator: Zappalá, Donatella ¹
Data collector: Zappalá, Donatella ¹
Data curator: Zappalá, Donatella ¹
Editor: Zappalá, Donatella ¹
Creator: Bezziccheri, Matteo ²
Data curator: Bezziccheri, Matteo ²
Creator: Crabtree, Christopher James ¹
Creator: Paone, Nicola ²

¹ Durham University, United Kingdom
² Università Politecnica delle Marche, Italy

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

Non-intrusive torque measurement
Zebra tape
Pulse train time shift
Shaft twist angle
Pulse train rising edge
Cross-correlation
Uncertainty

Subject

Torque-Measurement

Location

Language

Cited in

Identifier

ark:/32150/r1v979v306n
doi:10.15128/r1v979v306n

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

D. Zappala

Date Uploaded

28 March 2018, 09:03:52

Date Modified

28 March 2018, 13:03:37

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File format: x-rar (RAR archive data, v1d, os: Win32, RAR)

Mime type: application/x-rar

File size: 2259567

Last modified: 2018:03:28 10:14:58+01:00

Filename: Non-intrusive torque measurement for rotating shafts using optical sensing of zebra-tapes - Dataset.rar

Original checksum: 323bba8c2e1ca8af2de111c65f70e6ae