PMID- 22164040 OWN - NLM STAT- MEDLINE DCOM- 20120628 LR - 20211021 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 11 IP - 8 DP - 2011 TI - FPGA-based smart sensor for online displacement measurements using a heterodyne interferometer. PG - 7710-23 LID - 10.3390/s110807710 [doi] AB - The measurement of small displacements on the nanometric scale demands metrological systems of high accuracy and precision. In this context, interferometer-based displacement measurements have become the main tools used for traceable dimensional metrology. The different industrial applications in which small displacement measurements are employed requires the use of online measurements, high speed processes, open architecture control systems, as well as good adaptability to specific process conditions. The main contribution of this work is the development of a smart sensor for large displacement measurement based on phase measurement which achieves high accuracy and resolution, designed to be used with a commercial heterodyne interferometer. The system is based on a low-cost Field Programmable Gate Array (FPGA) allowing the integration of several functions in a single portable device. This system is optimal for high speed applications where online measurement is needed and the reconfigurability feature allows the addition of different modules for error compensation, as might be required by a specific application. FAU - Vera-Salas, Luis Alberto AU - Vera-Salas LA AD - HSPdigital, CA Procesamiento Digital de Senales, CA Telematica, DICIS, Universidad de Guanajuato, Carr Salamanca-Valle km 3.5+1.8, Palo Blanco, 36885 Salamanca, Gto, Mexico. lavera@hspdigital.org. FAU - Moreno-Tapia, Sandra Veronica AU - Moreno-Tapia SV FAU - Garcia-Perez, Arturo AU - Garcia-Perez A FAU - de Jesus Romero-Troncoso, Rene AU - de Jesus Romero-Troncoso R FAU - Osornio-Rios, Roque Alfredo AU - Osornio-Rios RA FAU - Serroukh, Ibrahim AU - Serroukh I FAU - Cabal-Yepez, Eduardo AU - Cabal-Yepez E LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110805 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 SB - IM MH - Algorithms MH - Biosensing Techniques/*methods MH - Computers MH - Image Processing, Computer-Assisted MH - Interferometry/*methods MH - Internet MH - Models, Statistical MH - *Motion MH - Optics and Photonics MH - Reproducibility of Results MH - Software PMC - PMC3231721 OTO - NOTNLM OT - FPGA OT - heterodyne interferometer OT - phase measurement OT - smart sensor EDAT- 2011/12/14 06:00 MHDA- 2012/06/29 06:00 PMCR- 2011/01/01 CRDT- 2011/12/14 06:00 PHST- 2011/06/10 00:00 [received] PHST- 2011/08/02 00:00 [revised] PHST- 2011/08/04 00:00 [accepted] PHST- 2011/12/14 06:00 [entrez] PHST- 2011/12/14 06:00 [pubmed] PHST- 2012/06/29 06:00 [medline] PHST- 2011/01/01 00:00 [pmc-release] AID - s110807710 [pii] AID - sensors-11-07710 [pii] AID - 10.3390/s110807710 [doi] PST - ppublish SO - Sensors (Basel). 2011;11(8):7710-23. doi: 10.3390/s110807710. Epub 2011 Aug 5.