Low-voltage signal conditioning circuit for fluid-based inclination switch

Yoshinori Matsumoto, A. M. Asrulnizam, K. Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A low-voltage signal conditioning circuit for a capacitive sensor was designed with 0.35μm CMOS technology. A charge balanced capacitance detection circuit and summing amplifier were designed with inverter amplifier, feedback resistance and capacitance which determines the gain and frequency response ofthe circuit. The oscillator and hold capacitance were also integrated in the chip size of 1mm by 0.5mm. The chip was packaged with a fluid-based inclination switch on a ceramic substrate, and the characteristics were evaluated. A PDMS container of 4.0mm×4.0mm×2.0mm was used for the inclination switch. The output voltage was changed at angles of 0, 90, 180 and 270 deg with propylene carbonate used as an electrolyte.

Original languageEnglish
Title of host publicationProceedings of IEEE Sensors
Pages371-374
Number of pages4
DOIs
Publication statusPublished - 2008
Event2008 IEEE Sensors, SENSORS 2008 - Lecce, Italy
Duration: 2008 Oct 262009 Oct 29

Other

Other2008 IEEE Sensors, SENSORS 2008
CountryItaly
CityLecce
Period08/10/2609/10/29

Fingerprint

Signal conditioning circuits
Capacitance
Switches
Fluids
Electric potential
Feedback amplifiers
Capacitive sensors
Networks (circuits)
Propylene
Frequency response
Containers
Carbonates
Electrolytes
Substrates

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Matsumoto, Y., Asrulnizam, A. M., & Nakamura, K. (2008). Low-voltage signal conditioning circuit for fluid-based inclination switch. In Proceedings of IEEE Sensors (pp. 371-374). [4716458] https://doi.org/10.1109/ICSENS.2008.4716458

Low-voltage signal conditioning circuit for fluid-based inclination switch. / Matsumoto, Yoshinori; Asrulnizam, A. M.; Nakamura, K.

Proceedings of IEEE Sensors. 2008. p. 371-374 4716458.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Matsumoto, Y, Asrulnizam, AM & Nakamura, K 2008, Low-voltage signal conditioning circuit for fluid-based inclination switch. in Proceedings of IEEE Sensors., 4716458, pp. 371-374, 2008 IEEE Sensors, SENSORS 2008, Lecce, Italy, 08/10/26. https://doi.org/10.1109/ICSENS.2008.4716458
Matsumoto Y, Asrulnizam AM, Nakamura K. Low-voltage signal conditioning circuit for fluid-based inclination switch. In Proceedings of IEEE Sensors. 2008. p. 371-374. 4716458 https://doi.org/10.1109/ICSENS.2008.4716458
Matsumoto, Yoshinori ; Asrulnizam, A. M. ; Nakamura, K. / Low-voltage signal conditioning circuit for fluid-based inclination switch. Proceedings of IEEE Sensors. 2008. pp. 371-374
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