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Related Concept Videos

Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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Research on Wireless Passive Ultrasonic Thickness Measurement Technology Based on Pulse Compression Method.

Long Pan1, Kunsan Shi1, Lei Han1

  • 1SINOPEC Research Institute of Safety Engineering Co., Ltd., Qingdao 266000, China.

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Summary
This summary is machine-generated.

This study presents a wireless ultrasonic thickness measurement technique for petrochemical corrosion detection. The new method significantly improves accuracy for localized thinning detection, enhancing safety and efficiency.

Keywords:
corrosion detectionfixed-point thickness measurementmeasurement errorwireless passive ultrasonic thickness measurement

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Area of Science:

  • Materials Science
  • Non-destructive Testing
  • Petrochemical Engineering

Background:

  • Traditional fixed-point thickness measurement in petrochemicals has low efficiency for localized thinning and high costs.
  • Limitations exist in measurement locations and equipment due to insulation and cooling requirements.

Purpose of the Study:

  • To introduce a wireless passive ultrasonic thickness measurement technique.
  • To overcome the limitations of existing methods for corrosion detection in petrochemical industries.

Main Methods:

  • Developed mathematical and circuit models for wireless energy transmission.
  • Proposed a three-terminal wireless energy mutual coupling system.
  • Established a finite element model for ultrasonic body wave measurement and wireless energy transmission.

Main Results:

  • Wireless ultrasonic echo signals processed with a pulse compression algorithm showed ten times greater accuracy than untreated signals.
  • Experimental validation on various metal samples confirmed the technique's effectiveness.

Conclusions:

  • The wireless ultrasonic thickness measurement technique significantly enhances accuracy and efficiency for corrosion detection.
  • This method enables high-density deployment of measurement points, improving safety in petrochemical applications.