Multiparameter measuring system using fiber optic sensors for hydraulic temperature, pressure and flow monitoring

Liu, Mingyao; Wu, Yihang; Song, Han; Zou, Yao; Shu, Xianshuang

doi:10.1016/j.measurement.2022.110705

Cited by 23 publications

(15 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another extensively used method is to employ cantilevers as the strain transfer mechanism and utilize various optical fiber structures, such as the fiber Bragg grating (FBG), as the strain sensor [24][25][26]. Some researchers fixed bared optical fiber perpendicular or parallel to the flow direction and applied methods such as thermal time-of-flight measurement [27,28] or fluid massinduced force [29][30][31] to measure the pipe flow rate. There are also other interesting flow sensors that employ the principles of traditional flowmeters, such as the pitot tube [32,33] or vortex flowmeter [34,35], but apply optical fiber instead of the traditional bulky apparatuses.…”

Section: Introductionmentioning

confidence: 99%

A biomimetic orthogonal flow sensor based on an asymmetric optical fiber sensory structure for marine sensing

Wang,

Song,

2024

Bioinspir. Biomim.

View full text Add to dashboard Cite

With increasing attention on the world’s oceans, a significant amount of research has been focused on the sensing of marine-related parameters in recent years. In this paper, a bioinspired flow sensor with corrosion resistance, anti-interference capability, a portable design structure, easy integration, and directional sensing ability is presented to realize flow speed sensing in open water. The sensor is realized by a flexible artificial cupula that seals one side of an optical fiber acting as an artificial kinocilium. Below the artificial kinocilium, an encapsulated s-tapered optical fiber mimics the fish neuromast sensory mechanism and is supported by a 3D-printed structure that acts as the artificial supporting cell. To characterize the sensor, the optical transmission spectra of the sensory fiber under a set of water flow velocities and four orthogonal directions were monitored. The sensor’s peak intensity responses were found to demonstrate flow sensing ability for velocity and direction, proving that this biomimetic portable sensing structure is a promising candidate for flow sensing in marine environments.

show abstract

Section: Introductionmentioning

confidence: 99%

A biomimetic orthogonal flow sensor based on an asymmetric optical fiber sensory structure for marine sensing

Wang,

Song,

2024

Bioinspir. Biomim.

View full text Add to dashboard Cite

show abstract

“…When probes are used to measure the pressure that a fluid exerts on the internal wall of a pipe, errors occur due to the presence of the probe inside the pipeline. For this reason, several methods for non-invasive pressure measurements have been developed [1][2][3][4][5][6][7][8][9][10][11][12] . These include the use of ultrasonic waves, terahertz spectroscopy, and fiber optics among others.…”

Section: Introductionmentioning

confidence: 99%

“…Terahertz spectroscopy utilizes non-ionizing radiation within the terahertz frequency (10 12 hertz) to map the internal pressure distribution applied by a fluid within a pipe 5 . Fiber optic sensors can also be used for pressure detection, and they can be categorized as intrinsic or extrinsic, where the optical fiber respectively plays an active or passive role in the sensing process [6][7][8][9][10][11][12] . This paper presents a feasibility study related to the use of a new technique to perform non-invasive pressure measurements within pipelines.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of pressurized pipelines with whispering gallery mode-based sensors

Rubino,

Agarwal

2024

Photonic Instrumentation Engineering XI

View full text Add to dashboard Cite

The purpose of this work is to explore the use of optical resonators based on the Whispering Gallery Mode phenomenon (WGM), to determine the variation of the internal pressure of a pipeline due to leaks. Numerical experiments were performed to determine the sensitivity of disk-shaped optical resonators embedded in the wall of the pipe. A change in the internal pressure causes mechanical stress in the pipe wall and therefore a strain that is transferred to the optical resonator. This strain can be related to the shift of the optical modes (WGM shift) to determine the sensitivity of the sensor. The parameters investigated include the size of the resonator and the location within the thickness of the pipe wall. The results show a linear behavior of the WGM shift with the applied pressure, as well as a quadratic increase of the sensitivity with the resonator diameter.

show abstract

“…Therefore, analyzing the operation reliability (OR) based on state information during the hydraulic system use phase at this situation, on the one hand, it can monitor and analyze the airplane system's performance in operating stages; on the other hand, it also can be a valuable reference for the fault diagnosis and preventive maintenance of the hydraulic system during the operating. The technology of hydraulic system states parameters can be gained by fiber optic sensing [1]. After obtaining the state data, the hydraulic system health management can be implemented by deep neural network, XGBoost [2].…”

Section: Introductionmentioning

confidence: 99%

Operation reliability monitoring towards fault diagnosis of airplane hydraulic system using Quick Access Recorder flight data

Pan

Yang

Liu

et al. 2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

Hydraulic system operation reliability (HSOR) can evaluate time series state reliability for hydraulic system fault diagnosis and provide condition based maintenance decisions. The Quick Access Recorder (QAR) flight data and normal values of hydraulic system are utilized to analyze time series HSOR by calculating the operation reliability index. Considering the relationship of the hydraulic subsystem among the components, a hydraulic components Bayesian Network (BN) is constructed to analyze time series HSOR. Furthermore, the sensitivity of HSOR features to fault location is assessed using categorical boosting (CatBoost) and Shapley Additive ex-Planations (SHAP) values. Through the analysis of 2 flights hydraulic system QAR datasets, it is revealed that (i) HSOR can accurately monitor the time series operating states of the hydraulic system; and (ii) with demonstrating two illustrative case, the HSOR values and features sensitivity analysis can be a useful reference for the fault diagnosis and location of the airplane hydraulic system. The study intends to develop a practical reference approach for hydraulic system fault diagnosis and location using QAR data.

show abstract

Multiparameter measuring system using fiber optic sensors for hydraulic temperature, pressure and flow monitoring

Cited by 23 publications

References 36 publications

A biomimetic orthogonal flow sensor based on an asymmetric optical fiber sensory structure for marine sensing

A biomimetic orthogonal flow sensor based on an asymmetric optical fiber sensory structure for marine sensing

Monitoring of pressurized pipelines with whispering gallery mode-based sensors

Operation reliability monitoring towards fault diagnosis of airplane hydraulic system using Quick Access Recorder flight data

Contact Info

Product

Resources

About