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Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor

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Dynamic tire pressure sensor for measuring ground vibration.

Qi Wang¹, James Gregory McDaniel, Ming L Wang

¹Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115, USA. mi.wang@neu.edu

Sensors (Basel, Switzerland)

|December 4, 2012

Summary

This summary is machine-generated.

A novel acoustic sensing method uses a dynamic tire pressure sensor (DTPS) to measure ground vibration non-contact. This DTPS approach offers a promising alternative for pavement condition inspection.

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Area of Science:

Civil Engineering
Mechanical Engineering
Acoustics

Background:

Traditional methods for measuring ground vibration, such as accelerometers and directional microphones, have limitations in practical pavement condition inspection.
Environmental noise and the need for direct contact can complicate existing ground vibration sensing techniques.

Purpose of the Study:

To introduce and validate a convenient, non-contact acoustic sensing approach for measuring ground vibration using a dynamic tire pressure sensor (DTPS).
To evaluate the potential of DTPS as a replacement for conventional accelerometers and directional microphones in pavement inspection.

Main Methods:

Utilizing an instantaneous dynamic tire pressure sensor (DTPS) to measure dynamic pressure changes within a tire.
Developing and optimizing a data analysis algorithm to reconstruct ground acceleration from DTPS data.
Conducting numerical and experimental studies to compare DTPS performance against ground-mounted accelerometers and directional microphones.

Main Results:

The DTPS approach effectively amplifies and isolates ground vibration signals from environmental noise by measuring internal tire pressure changes.
Verifications confirmed the feasibility of the DTPS concept for sensing ground vibrations.
Comparisons demonstrated the potential of DTPS as a viable alternative to traditional sensors.

Conclusions:

The DTPS method shows strong potential for measuring ground vibration induced by moving vehicles in a non-contact manner.
Further calibration of the transfer function between dynamic tire pressure and ground acceleration may be necessary for specific tire systems or enhanced accuracy.