Sliding discrete Fourier transform (DFT) bins for fuel quantity measurements

US12298199B2 · kind B2 · utility

Assignee

• Simmonds Precision Products, Inc. · US

Inventors

• Aswin Kumar Vallamkondu · Kanchinakote, IN
• David H. Crowne · Jameel Buthaynah Street, US
• Prashant Vadgaonkar · Survanagiri, IN
• Venkata Sai Sudheer Kumar · Kanchinakote, IN

Key dates

• Filing date: Nov 21, 2022
• Grant date: May 13, 2025
• Expiry date: Nov 22, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01K11/3206
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method includes receiving wavelength domain data for a time step, performing a Discrete Fourier Transform (DFT) to transform the wavelength domain data for the time step into frequency domain data for the time step only for the limited set of frequency bins associated with a frequency of interest, calculating pressure based on the frequency domain data for the time step, and updating the frequency of interest and the limited set of frequency bins. The method includes repeating receiving wavelength data for subsequent time steps, performing a DFT to transform the wavelength data for the respective subsequent time steps, calculating pressure for each subsequent time step, and updating the frequency of interest and limited set of frequency bins for each subsequent time step. The method includes outputting pressure data based on calculating pressure for the subsequent time steps.