Prof. Ping Li Profile

Prof. Ping Li

at Chongqing Univ

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 20 November 2007 Paper

Online non-contact detection for LED chips

Ping Li, Lian Li, Jing Wen, Yumei Wen

Proceedings Volume 6828, 68280X (2007) https://doi.org/10.1117/12.760235

KEYWORDS: Light emitting diodes, Lead, Packaging, Signal detection, Photovoltaic detectors, Photovoltaics, Electrodes, Magnetism, Semiconductors, Green light emitting diodes

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Proceedings Article | 17 May 2005 Paper

Characterization of concrete stress by measuring dissipation factors of embedded piezoelectric ceramic disc

Yu Chen, Yumei Wen, Ping Li

Proceedings Volume 5765, (2005) https://doi.org/10.1117/12.599838

KEYWORDS: Ceramics, Dielectrics, Ferroelectric materials, Transducers, Resistance, Capacitance, Sensors, Crystals, Temperature metrology, Zirconium

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Proceedings Article | 16 May 2005 Paper

A resonant coding passive wireless SAW sensor array system

Ping Li, Yumei Wen

Proceedings Volume 5758, (2005) https://doi.org/10.1117/12.597962

KEYWORDS: Sensors, Resonators, Composites, Signal detection, Chemical elements, Switches, Transducers, Transceivers, Remote sensing, Switching

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Proceedings Article | 16 May 2005 Paper

Mobile instrument for intelligent leak detection and location on underground water supply pipelines

Yumei Wen, Ping Li, Xin Na, Jin Yang

Proceedings Volume 5758, (2005) https://doi.org/10.1117/12.599452

KEYWORDS: Interference (communication), Sensors, Acoustics, Wavelets, Signal detection, Data acquisition, Signal to noise ratio, Digital filtering, Filtering (signal processing), Signal processing

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Proceedings Article | 21 July 1998 Paper

Readout of a piezoelectric distributed sensing network embedded in concrete

Yumei Wen, Ping Li, Shanglian Huang

Proceedings Volume 3330, (1998) https://doi.org/10.1117/12.316959

KEYWORDS: Sensors, Diodes, Wave propagation, Multiplexers, Acoustics, Modulation, Switching, Power supplies, Ultrasonics, Particles

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Proceedings Article | 14 November 1997 Paper

Real-time and multichannel signal abstraction for piezoelectric resonant sensor array

Ping Li, Yumei Wen

Proceedings Volume 3242, (1997) https://doi.org/10.1117/12.293561

KEYWORDS: Sensors, Electrodes, Quartz, Signal processing, Wave propagation, Resonators, Semiconducting wafers, Crystals, Oscillators, Digital signal processing

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Proceedings Article | 14 November 1997 Paper

Non-integrated piezoelectric passive sensor array for distributed sensing in smart structural systems

Yumei Wen, Ping Li, Shanglian Huang

Proceedings Volume 3241, (1997) https://doi.org/10.1117/12.293517

KEYWORDS: Sensors, Multiplexers, Diodes, Sensing systems, Power supplies, Chemical elements, Analog electronics, Electrodes, Passive sensors, Particles

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Proceedings Article | 16 September 1994 Paper

Image resolution improvement by swing CCD array imager in two dimensions and its signal processing

Ping Li, Yumei Wen

Proceedings Volume 2308, (1994) https://doi.org/10.1117/12.186034

KEYWORDS: Charge-coupled devices, Signal processing, Image resolution, Spatial resolution, Modulation transfer functions, Imaging systems, Image processing, Video, Imaging arrays, Resolution enhancement technologies

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Proceedings Article | 1 February 1991 Paper

New scheme for real-time visual inspection of bearing roller

Yu Zhang, Wu Xian, Ping Li, Ernest Hall, James Tu

Proceedings Volume 1384, (1991) https://doi.org/10.1117/12.25310

KEYWORDS: Inspection, Optical inspection, Line edge roughness, Image processing, Binary data, Optical character recognition, Pattern recognition, Detection and tracking algorithms, Digital image processing, Machine vision

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Showing 5 of 9 publications

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