The advancement in optical technology based metrology has been significant over recent years. Many applications utilize the Frequency Scanning Interferometry (FSI) technique for short and long-range precision measurements. This paper discusses the design and development of a cost-effective FPGA based data acquisition solution for FSI system for long-range measurement. The proposed hardware uses the 160MS/s ADC interfaced with an FPGA via an LVDS interface. The acquisition hardware utilizes the external clock signal generated from the reference interferometer which reduces the non-linear effect of the tunable laser for improved precision. The design and development of a low noise comparator design for an external sampling clock is also presented.
|Number of pages||6|
|Publication status||Accepted/In press - 25 Feb 2022|
|Event||IEEE The International Instrumentation & Measurement Technology Conference (2022) - Canada, Ottawa|
Duration: 16 Apr 2022 → 19 Apr 2022
|Conference||IEEE The International Instrumentation & Measurement Technology Conference (2022)|
|Period||16/04/22 → 19/04/22|