Instantaneous Rotational Speed Measurement Using Image Correlation and Periodicity Determination Algorithms

Wang, Tianyu; Yan, Yong; Wang, Limin; Hu, Yonghui; Zhang, Shuai

doi:10.1109/tim.2019.2932154

Cited by 11 publications

(5 citation statements)

References 31 publications

(54 reference statements)

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“…Charchalis demonstrated and presented equations describing how the relationship between speed and torque affected a rotating crankshaft [30]. Wang et al proposed using image correlation and periodicity algorithms [43]. Desbazeille and Zhang extended the analysis to V engines [44,45].…”

Section: State-of-the-artmentioning

confidence: 99%

Instantaneous Rotational Speed Algorithm for Locating Malfunctions in Marine Diesel Engines

Kazienko

Chybowski

2020

Energies

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This article suggested broadening the standard methods for diagnosing the technical condition of diesel engines to include an analysis of the instantaneous rotational speed of compression combustion engines with the use of a novel algorithm. The authors revised the subject concerning the use of the analysis of instantaneous changes in the rotational speed of an engine when assessing its technical condition and the location of the malfunction. An algorithm and its practical implementation in a prototype diagnostic system called SpeedMA were presented. This article reported the test results of the prototype in the context of indicating the engine cylinder in which ignition failed to occur. Tests were carried out for two marine engines: a low-speed trunk engine directly driving the fixed-pitch propeller and a medium-speed trunk engine driving the alternator. For each case, an analysis was carried out for different engine loads and at individual cylinders in which combustion failed to occur. The experimental results showed an unambiguous relation between the combustion process of the examined engines and changes in the instantaneous rotational speed. The results also confirmed the usefulness of the proposed method and showed the correct operation of the presented diagnostic algorithm. The proposed diagnostic system could be used during the operation of engines running in real ship engine rooms.

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Section: State-of-the-artmentioning

confidence: 99%

Instantaneous Rotational Speed Algorithm for Locating Malfunctions in Marine Diesel Engines

Kazienko

Chybowski

2020

Energies

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“…Due to advances in imaging sensors and image processing algorithms, the use of vision-based sensors can change the paradigms of monitoring machines. By visual analysis, it is possible to extract information about the environment and use it as a multi-sensor tracking multiple regions simultaneously [ 26 ]. For high rotational speed, the measurement system requires a high-speed camera such as the one used by [ 27 ], and it is also necessary to track a marker in the rotating surface.…”

Section: Introductionmentioning

confidence: 99%

Event-Based Angular Speed Measurement and Movement Monitoring

Azevedo

Fernandes

Silva

et al. 2022

Sensors

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Computer vision techniques can monitor the rotational speed of rotating equipment or machines to understand their working conditions and prevent failures. Such techniques are highly precise, contactless, and potentially suitable for applications without massive setup changes. However, traditional vision sensors collect a significant amount of data to process and measure the rotation of high-speed systems, and they are susceptible to motion blur. This work proposes a new method for measuring rotational speed processing event-based data applied to high-speed systems using a neuromorphic sensor. This sensor produces event-based data and is designed to work with high temporal resolution and high dynamic range. The main advantages of the Event-based Angular Speed Measurement (EB-ASM) method are the high dynamic range, the absence of motion blurring, and the possibility of measuring multiple rotations simultaneously with a single device. The proposed method uses the time difference between spikes in a Kernel or Window selected in the sensor frame range. It is evaluated in two experimental scenarios by measuring a fan rotational speed and a Router Computer Numerical Control (CNC) spindle. The results compare measurements with a calibrated digital photo-tachometer. Based on the performed tests, the EB-ASM can measure the rotational speed with a mean absolute error of less than 0.2% for both scenarios.

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“…However, the lower the rotational speed, the less charge generated by the turntable, and, thus, this technique is not suitable for measuring low rotational speeds. In recent years, other methods have also been developed to test rotational speeds [16][17][18][19]. However, different measurement approaches have limitations.…”

Section: Introductionmentioning

confidence: 99%

Synchronous Online Monitoring of Rotational Speed and Temperature for Rotating Parts in High Temperature Environment

Jia

Xue

et al. 2021

IEEE Access

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Rotational speed and temperature measurements of an engine blade surface play a vital role in the performance detection of an engine. We proposed a wireless passive LC sensor based on thick-film integration technology to integrate the sensor in situ on the surface of the rotating part, which can be used to monitor the rotational speed and temperature of the rotating part. The reflection signal generated by the impedance mismatch is output in the form of voltage through the detection circuit such that the synchronous online measurement of rotational speed and temperature is realized by analyzing the time slot of adjacent troughs and the amplitude of the output voltage. In addition, we used laser drilling, screen printing, high-temperature sintering, and other technologies to integrate the sensor in situ on the surface of the ceramic turntable, which is lightweight. Finally, the test was conducted by setting up a rotational speed-high-temperature composite experimental platform, and the results showed that the sensor can work normally in the range of 25-830℃, and the rotational speed measurement range was 50-400rpm. The consistency of the rotational speed measurement was suitable, the maximum error was less than 1%, and the work was stable within 180 min.INDEX TERMS high temperature, high temperature rotating environment, in-situ integration, Rotational speed, wireless measurement

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Instantaneous Rotational Speed Measurement Using Image Correlation and Periodicity Determination Algorithms

Abstract: The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record.

Cited by 11 publications

References 31 publications

Instantaneous Rotational Speed Algorithm for Locating Malfunctions in Marine Diesel Engines

Instantaneous Rotational Speed Algorithm for Locating Malfunctions in Marine Diesel Engines

Event-Based Angular Speed Measurement and Movement Monitoring

Synchronous Online Monitoring of Rotational Speed and Temperature for Rotating Parts in High Temperature Environment

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