Design and Construction of Low Cost High-Performance Transducer Signal Processing and Data Acquisition System

Katdare, Harshal; Warke, Nilima; Vaidya, Prakash D.

doi:10.1109/icoei48184.2020.9143044

Cited by 2 publications

(1 citation statement)

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“…In this paper, a low-cost acoustic noise barriers measurement system based on the Teensy development board is presented [5]- [7], [9], [12], [16], [27], [28] and [31].…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost System for Quick Measurements on Noise Barriers in Situ

Guidorzi

Garai

2022

IEEE Trans. Instrum. Meas.

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This paper describes the development of a low-cost device for measuring the acoustic intrinsic characteristics of noise barriers. The system is based on the Teensy 4.1 microcontroller combined with a few other components. The measurements are carried out using a vertical linear microphone antenna housing 6 microphones and a lightweight loudspeaker, wireless connected to the main unit. Both the main system unit and the amplified loudspeaker are powered from normal 5 V USB battery packs, which are easily rechargeable and interchangeable. The system measures 6 impulse responses using an MLS signal and performs a series of calculations and frequency analyses to characterize the device under test, following a simplified version of the European standards EN 1793-5 and EN 1793-6 (commonly referred to as the 'Adrienne method'). One measurement takes few minutes, obtaining results comparable to those obtained with the Adrienne method, which requires a more complicated and heavy measuring equipment and is much more expensive and time consuming.

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“…In this paper, a low-cost acoustic noise barriers measurement system based on the Teensy development board is presented [5]- [7], [9], [12], [16], [27], [28] and [31].…”

Section: Introductionmentioning

confidence: 99%