A novel displacement sensor was proposed based on a frequency delta-sigma modulator (FDSM) employing a microwave oscillator. To demonstrate basic operation, we fabricated a stylus surface profiler using a cylindrical cavity resonator, where one end of the cavity is replaced by a thin metal diaphragm with a stylus probe tip. Good surface profile was successfully obtained with this device. A 10 nm depth trench was clearly observed together with a 10 µm trench in a single scan without gain control. This result clearly demonstrates an extremely wide dynamic range of the FDSM displacement sensors.
Koichi MAEZAWA
University of Toyama
Umer FAROOQ
University of Toyama
Masayuki MORI
University of Toyama
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Koichi MAEZAWA, Umer FAROOQ, Masayuki MORI, "A Novel Displacement Sensor Based on a Frequency Delta-Sigma Modulator and its Application to a Stylus Surface Profiler" in IEICE TRANSACTIONS on Electronics,
vol. E106-C, no. 9, pp. 486-490, September 2023, doi: 10.1587/transele.2022ECS6013.
Abstract: A novel displacement sensor was proposed based on a frequency delta-sigma modulator (FDSM) employing a microwave oscillator. To demonstrate basic operation, we fabricated a stylus surface profiler using a cylindrical cavity resonator, where one end of the cavity is replaced by a thin metal diaphragm with a stylus probe tip. Good surface profile was successfully obtained with this device. A 10 nm depth trench was clearly observed together with a 10 µm trench in a single scan without gain control. This result clearly demonstrates an extremely wide dynamic range of the FDSM displacement sensors.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2022ECS6013/_p
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@ARTICLE{e106-c_9_486,
author={Koichi MAEZAWA, Umer FAROOQ, Masayuki MORI, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Novel Displacement Sensor Based on a Frequency Delta-Sigma Modulator and its Application to a Stylus Surface Profiler},
year={2023},
volume={E106-C},
number={9},
pages={486-490},
abstract={A novel displacement sensor was proposed based on a frequency delta-sigma modulator (FDSM) employing a microwave oscillator. To demonstrate basic operation, we fabricated a stylus surface profiler using a cylindrical cavity resonator, where one end of the cavity is replaced by a thin metal diaphragm with a stylus probe tip. Good surface profile was successfully obtained with this device. A 10 nm depth trench was clearly observed together with a 10 µm trench in a single scan without gain control. This result clearly demonstrates an extremely wide dynamic range of the FDSM displacement sensors.},
keywords={},
doi={10.1587/transele.2022ECS6013},
ISSN={1745-1353},
month={September},}
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TY - JOUR
TI - A Novel Displacement Sensor Based on a Frequency Delta-Sigma Modulator and its Application to a Stylus Surface Profiler
T2 - IEICE TRANSACTIONS on Electronics
SP - 486
EP - 490
AU - Koichi MAEZAWA
AU - Umer FAROOQ
AU - Masayuki MORI
PY - 2023
DO - 10.1587/transele.2022ECS6013
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E106-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2023
AB - A novel displacement sensor was proposed based on a frequency delta-sigma modulator (FDSM) employing a microwave oscillator. To demonstrate basic operation, we fabricated a stylus surface profiler using a cylindrical cavity resonator, where one end of the cavity is replaced by a thin metal diaphragm with a stylus probe tip. Good surface profile was successfully obtained with this device. A 10 nm depth trench was clearly observed together with a 10 µm trench in a single scan without gain control. This result clearly demonstrates an extremely wide dynamic range of the FDSM displacement sensors.
ER -