Work
I am doing my PhD on ultrasonic measurement systems for gas, using Finite Element modelling of piezoelectric transducers to establish an improved correction factor for high-precision measurement of e.g. speed of sound. I will also perform experiments in the Acoustics Laboratory at IFT/UiB and compare them to modelling results.
My PhD is part of the project Subsea gas energy and quality measurement using ultrasonic flow meters, funded by the Norwegian Research Council.
I am currently on leave from a position as a researcher at NORCE Norwegian Research Centre.
Publications
Academic lecture
- Lunde, Per; Mosland, Eivind Nag; Kocbach, Jan Martin et al. (2025). Diffraction correction for piezoelectric transducers in precision ultrasonic measurement systems. (external link)
- Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2023). Using spectrum-of-spectrum (SoS) filtering to extract direct and multipath arrivals from a frequency domain simulation. Comparison with cepstrum and time-gating methods. (external link)
- Mosland, Eivind Nag; Kocbach, Jan Martin; Lunde, Per (2022). Errors using the spatially averaged free-field pressure approximation for description of the receiving properties of piezoelectric transducers. (external link)
- Mosland, Eivind Nag; Kocbach, Jan Martin; Storheim, Espen et al. (2022). Radiation in air from a piezoelectric ceramic disk in radial mode vibration. Contributions from front, side and rear surfaces. (external link)
- Mosland, Eivind Nag; Storheim, Espen; Lunde, Per et al. (2021). Diffraction correction for precision measurements of sound velocity in gas. Is full receiver modelling needed?. (external link)
Academic article
- Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2025). Comparison of measured and finite element-based diffraction correction (FEDC) for ultrasonic measurement systems in a gaseous medium. (external link)
- Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2024). Diffraction correction in high-precision pulse-echo and multiple-reflection ultrasonic measurement systems for fluids. (external link)
- Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2023). A spectrum-of-spectrum filtering method to extract direct and multipath arrivals from simulations and measurements. (external link)
- Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2023). Finite element-based diffraction correction for piezoelectric transducers accounting for diffraction at transmission, propagation, and reception. (external link)
- Mosland, Eivind Nag; Lohne, Kjetil Daae; Ystad, Bjørnar et al. (2018). Pressure Wave Velocity in Fluid-Filled Pipes with and without Deposits in the Low-Frequency Range. (external link)
- Øyerhamn, Rune; Mosland, Eivind Nag; Storheim, Espen et al. (2018). Finite element modeling of ultrasound measurement systems for gas. Comparison with experiments in air. (external link)