Digital Ultrasonic Sensing Device with Programmable Frequency: Development and Analysis

Authors

  • Manish Man Shrestha Cosmos College of Management and Technology, Lalitpur, Nepal
  • Bibek Ropakheti Cosmos College of Management and Technology, Lalitpur, Nepal
  • Uddhav Bhattarai Cosmos College of Management and Technology, Lalitpur, Nepal
  • Ajaya Adhikari Cosmos College of Management and Technology, Lalitpur, Nepal
  • Shreeram Thakur Cosmos College of Management and Technology, Lalitpur, Nepal

DOI:

https://doi.org/10.3126/aet.v1i1.39658

Keywords:

Ultrasonic wave, structure health monitoring, Digital ultrasonicsensing device, Programmable filter

Abstract

Ultrasonic wave is widely used in Structure Health Monitoring (SHM) systems. A piezoelectric transducer (PZT) is one of the most widely used sensors to acquire the structure's ultrasonic wave. As today's world is digital, it is necessary to digitize the traditional analog PZT sensing system. This paper describes the development and analysis of a digital ultrasonic sensing device (DUSD) for PZT sensors. We removed the complexities of the analog circuit by interfacing the microcontroller directly with the charge amplifier circuit. The microcontroller used in this research is a 32-bit ARM Cortex-M4 with in-built FPU (Floating Point Unit) and DSP (Digital signal processing) instructions. These features make it possible to compute complex signal processing algorithms and methods in the controller itself. The developed sensing device can communicate with the user and other devices using Universal Asynchronous Receiver/Transmitter (UART). The user can select cut-off frequencies of both high pass filters (HPF) and low pass filters (LPF) as well as types of data (ultrasonic waves, damage index) that the user wishes to collect from the device. To illustrate the proficiencies of the device, the ultrasonic wave was collected and evaluated to detect the damage in the test specimen.

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Author Biographies

Manish Man Shrestha, Cosmos College of Management and Technology, Lalitpur, Nepal

Department of Electronics and Communication Engineering and Samadhan Engineering Pvt. Ltd., Lalitpur, Nepal

Bibek Ropakheti, Cosmos College of Management and Technology, Lalitpur, Nepal

Department of IT and Computer Engineering

Uddhav Bhattarai, Cosmos College of Management and Technology, Lalitpur, Nepal

Department of Electronics and Communication Engineering

Ajaya Adhikari, Cosmos College of Management and Technology, Lalitpur, Nepal

Department of Electronics and Communication Engineering

Shreeram Thakur, Cosmos College of Management and Technology, Lalitpur, Nepal

Department of Electronics and Communication Engineering

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Published

2021-09-10

How to Cite

Shrestha, M. M., Ropakheti, B., Bhattarai, U., Adhikari, A., & Thakur, S. (2021). Digital Ultrasonic Sensing Device with Programmable Frequency: Development and Analysis. Advances in Engineering and Technology: An International Journal, 1(1), 33–45. https://doi.org/10.3126/aet.v1i1.39658

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Section

Articles