# The effect of humidity on the stability of pressure - Velocity sensors: A measurement method of absorption characteristics of building materials by using ensemble averaging
> Kusno A.

URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_84874373457
Jurnal / Konferensi: Aij Journal of Technology and Design
Tahun terbit: 2013
DOI: https://doi.org/10.3130/aijt.19.179
ISSN: 13419463
Kuartil SJR: Q2
Citations: 19

## Authors
- Kusno A.

## Abstract
To examine humidity influence on stability of pu-sensors, we applied calibration and the ensemble averaged surface normal impedance method (EA-Method) under controlled relative humidity (φ=35-60%) in a reverberation room. Experiments revealed that calibration results (i.e. correction values) changed as humidity levels varied. A comparison of standard deviations on absorption coefficients generated increasing value as the humidity difference between calibration and measurement increased (Δφ=0-25%). Repeatability was demonstrated by using two identical pu-sensors in four set measurements. Furthermore, a partial correlation test demonstrated the dominance of humidity over other environmental factors influencing sensor sensitivity.

## Keywords
- Humidity
- Repeatability
- Calibration
- Relative humidity
- Materials science
- Environmental science
- Acoustics
- Mathematics
- Meteorology
- Statistics
- Physics

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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